diff --git a/__tests__/coverage.test.ts b/__tests__/coverage.test.ts
index fe92d97d..0321867e 100644
--- a/__tests__/coverage.test.ts
+++ b/__tests__/coverage.test.ts
@@ -21,7 +21,7 @@ describe('Config tests', () => {
 
   it('checking addCoverage with PCOV on darwin', async () => {
     const darwin: string = await coverage.addCoverage('pcov', '7.4', 'darwin');
-    expect(darwin).toContain('add_extension pcov');
+    expect(darwin).toContain('add_brew_extension pcov');
     expect(darwin).toContain('remove_extension xdebug');
   });
 
@@ -71,7 +71,7 @@ describe('Config tests', () => {
       '7.4',
       'darwin'
     );
-    expect(darwin).toContain('add_extension xdebug');
+    expect(darwin).toContain('add_brew_extension xdebug');
   });
 
   it('checking disableCoverage windows', async () => {
diff --git a/__tests__/extensions.test.ts b/__tests__/extensions.test.ts
index 390dbca9..29d9ed94 100644
--- a/__tests__/extensions.test.ts
+++ b/__tests__/extensions.test.ts
@@ -59,20 +59,15 @@ describe('Extension tests', () => {
 
   it('checking addExtensionOnLinux', async () => {
     let linux: string = await extensions.addExtension(
-      'Xdebug, xdebug3, pcov, sqlite, :intl, ast, uopz, ast-beta, pdo_mysql, pdo-odbc, xdebug-alpha, grpc-1.2.3',
+      'Xdebug, xdebug3, pcov, sqlite, :intl, ast, ast-beta, pdo_mysql, pdo-odbc, xdebug-alpha, grpc-1.2.3',
       '7.4',
       'linux'
     );
     expect(linux).toContain(
       'add_extension_from_source xdebug xdebug/xdebug master --enable-xdebug zend_extension'
     );
-    expect(linux).toContain('sudo $debconf_fix apt-get install -y php7.4-pcov');
-    expect(linux).toContain(
-      'sudo $debconf_fix apt-get install -y php7.4-sqlite3'
-    );
+    expect(linux).toContain('add_extension sqlite3');
     expect(linux).toContain('remove_extension intl');
-    expect(linux).toContain('sudo $debconf_fix apt-get install -y php7.4-ast');
-    expect(linux).toContain('sudo $debconf_fix apt-get install -y php-uopz');
     expect(linux).toContain('add_unstable_extension ast beta extension');
     expect(linux).toContain('add_pdo_extension mysql');
     expect(linux).toContain('add_pdo_extension odbc');
@@ -81,11 +76,6 @@ describe('Extension tests', () => {
       'add_unstable_extension xdebug alpha zend_extension'
     );
 
-    linux = await extensions.addExtension('xdebug3', '8.0', 'linux');
-    expect(linux).toContain(
-      'sudo $debconf_fix apt-get install -y php8.0-xdebug'
-    );
-
     linux = await extensions.addExtension('pcov', '5.6', 'linux');
     expect(linux).toContain(
       'add_log "$cross" "pcov" "pcov is not supported on PHP 5.6"'
@@ -134,14 +124,14 @@ describe('Extension tests', () => {
       '7.2',
       'darwin'
     );
-    expect(darwin).toContain('add_brew_extension xdebug');
-    expect(darwin).toContain('add_brew_extension pcov');
-    expect(darwin).toContain('add_brew_extension grpc');
-    expect(darwin).toContain('add_brew_extension igbinary');
-    expect(darwin).toContain('add_brew_extension imagick');
-    expect(darwin).toContain('add_brew_extension protobuf');
-    expect(darwin).toContain('add_brew_extension swoole');
-    expect(darwin).toContain('pecl_install sqlite3');
+    expect(darwin).toContain('add_brew_extension xdebug zend_extension');
+    expect(darwin).toContain('add_brew_extension pcov extension');
+    expect(darwin).toContain('add_brew_extension grpc extension');
+    expect(darwin).toContain('add_brew_extension igbinary extension');
+    expect(darwin).toContain('add_brew_extension imagick extension');
+    expect(darwin).toContain('add_brew_extension protobuf extension');
+    expect(darwin).toContain('add_brew_extension swoole extension');
+    expect(darwin).toContain('add_extension sqlite3');
     expect(darwin).toContain('remove_extension intl');
     expect(darwin).toContain('add_unstable_extension ast beta extension');
     expect(darwin).toContain('add_pecl_extension grpc 1.2.3 extension');
@@ -177,14 +167,13 @@ describe('Extension tests', () => {
     expect(darwin).toContain('add_brew_extension xdebug');
 
     darwin = await extensions.addExtension('redis', '5.6', 'darwin');
-    expect(darwin).toContain('pecl_install redis-2.2.8');
+    expect(darwin).toContain('add_extension redis-2.2.8');
 
     darwin = await extensions.addExtension('redis', '7.2', 'darwin');
-    expect(darwin).toContain('pecl_install redis');
+    expect(darwin).toContain('add_extension redis');
 
     darwin = await extensions.addExtension('imagick', '5.5', 'darwin');
-    expect(darwin).toContain('brew install pkg-config imagemagick');
-    expect(darwin).toContain('pecl_install imagick');
+    expect(darwin).toContain('add_extension imagick');
 
     darwin = await extensions.addExtension('blackfire', '7.3', 'darwin');
     expect(darwin).toContain('add_blackfire blackfire');
diff --git a/dist/index.js b/dist/index.js
index 162ad27a..92522fbe 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -2570,6 +2570,7 @@ async function getScript(filename, version, os_version) {
     const name = 'setup-php';
     const url = 'https://setup-php.com/support';
     // taking inputs
+    process.env['fail_fast'] = await utils.getInput('fail-fast', false);
     const extension_csv = await utils.getInput('extensions', false);
     const ini_values_csv = await utils.getInput('ini-values', false);
     const coverage_driver = await utils.getInput('coverage', false);
@@ -2603,8 +2604,7 @@ async function run() {
         const tool = await utils.scriptTool(os_version);
         const script = os_version + (await utils.scriptExtension(os_version));
         const location = await getScript(script, version, os_version);
-        const fail_fast = await utils.readEnv('fail-fast');
-        await exec_1.exec(await utils.joins(tool, location, version, __dirname, fail_fast));
+        await exec_1.exec(await utils.joins(tool, location, version, __dirname));
     }
     catch (error) {
         core.setFailed(error.message);
@@ -2865,9 +2865,8 @@ const utils = __importStar(__webpack_require__(163));
  *
  * @param extension_csv
  * @param version
- * @param pipe
  */
-async function addExtensionDarwin(extension_csv, version, pipe) {
+async function addExtensionDarwin(extension_csv, version) {
     const extensions = await utils.extensionArray(extension_csv);
     let add_script = '\n';
     let remove_script = '';
@@ -2875,8 +2874,6 @@ async function addExtensionDarwin(extension_csv, version, pipe) {
         const version_extension = version + extension;
         const [ext_name, ext_version] = extension.split('-');
         const ext_prefix = await utils.getExtensionPrefix(ext_name);
-        const command_prefix = 'pecl_install ';
-        let command = '';
         switch (true) {
             // match :extension
             case /^:/.test(ext_name):
@@ -2911,26 +2908,20 @@ async function addExtensionDarwin(extension_csv, version, pipe) {
             case /(5\.6|7\.[0-4]|8\.[0-9])(xdebug|igbinary)/.test(version_extension):
             case /(5\.6|7\.[0-4])(grpc|imagick|protobuf|swoole)/.test(version_extension):
             case /(7\.[1-4]|8\.[0-9])pcov/.test(version_extension):
-                command = 'add_brew_extension ' + ext_name;
-                break;
+                add_script += await utils.joins('\nadd_brew_extension', ext_name, ext_prefix);
+                return;
             // match 5.6redis
             case /5\.6redis/.test(version_extension):
-                command = command_prefix + 'redis-2.2.8';
-                break;
-            // match 5.4imagick and 5.5imagick
-            case /^5\.[4-5]imagick$/.test(version_extension):
-                command = await utils.joins('brew install pkg-config imagemagick' + pipe, '&& ' + command_prefix + 'imagick' + pipe);
+                extension = 'redis-2.2.8';
                 break;
             // match sqlite
             case /^sqlite$/.test(extension):
                 extension = 'sqlite3';
-                command = command_prefix + extension;
                 break;
             default:
-                command = command_prefix + extension;
                 break;
         }
-        add_script += await utils.joins('\nadd_extension', extension, '"' + command + '"', ext_prefix);
+        add_script += await utils.joins('\nadd_extension', extension, ext_prefix);
     });
     return add_script + remove_script;
 }
@@ -3013,9 +3004,8 @@ exports.addExtensionWindows = addExtensionWindows;
  *
  * @param extension_csv
  * @param version
- * @param pipe
  */
-async function addExtensionLinux(extension_csv, version, pipe) {
+async function addExtensionLinux(extension_csv, version) {
     const extensions = await utils.extensionArray(extension_csv);
     let add_script = '\n';
     let remove_script = '';
@@ -3023,8 +3013,6 @@ async function addExtensionLinux(extension_csv, version, pipe) {
         const version_extension = version + extension;
         const [ext_name, ext_version] = extension.split('-');
         const ext_prefix = await utils.getExtensionPrefix(ext_name);
-        const command_prefix = 'sudo $debconf_fix apt-get install -y php';
-        let command = '';
         switch (true) {
             // Match :extension
             case /^:/.test(ext_name):
@@ -3066,27 +3054,20 @@ async function addExtensionLinux(extension_csv, version, pipe) {
             // match 8.0xdebug3...8.9xdebug3
             case /^8\.[0-9]xdebug3$/.test(version_extension):
                 extension = 'xdebug';
-                command = command_prefix + version + '-' + extension + pipe;
                 break;
             // match pdo extensions
             case /.*pdo[_-].*/.test(version_extension):
                 extension = extension.replace(/pdo[_-]|3/, '');
                 add_script += '\nadd_pdo_extension ' + extension;
                 return;
-            // match uopz
-            case /^(uopz)$/.test(extension):
-                command = command_prefix + '-' + extension + pipe;
-                break;
             // match sqlite
             case /^sqlite$/.test(extension):
                 extension = 'sqlite3';
-                command = command_prefix + version + '-' + extension + pipe;
                 break;
             default:
-                command = command_prefix + version + '-' + extension + pipe;
                 break;
         }
-        add_script += await utils.joins('\nadd_extension', extension, '"' + command + '"', ext_prefix);
+        add_script += await utils.joins('\nadd_extension', extension, ext_prefix);
     });
     return add_script + remove_script;
 }
@@ -3100,24 +3081,24 @@ exports.addExtensionLinux = addExtensionLinux;
  * @param no_step
  */
 async function addExtension(extension_csv, version, os_version, no_step = false) {
-    const pipe = await utils.suppressOutput(os_version);
+    const log = await utils.stepLog('Setup Extensions', os_version);
     let script = '\n';
     switch (no_step) {
         case true:
-            script += (await utils.stepLog('Setup Extensions', os_version)) + pipe;
+            script += log + (await utils.suppressOutput(os_version));
             break;
         case false:
         default:
-            script += await utils.stepLog('Setup Extensions', os_version);
+            script += log;
             break;
     }
     switch (os_version) {
         case 'win32':
             return script + (await addExtensionWindows(extension_csv, version));
         case 'darwin':
-            return script + (await addExtensionDarwin(extension_csv, version, pipe));
+            return script + (await addExtensionDarwin(extension_csv, version));
         case 'linux':
-            return script + (await addExtensionLinux(extension_csv, version, pipe));
+            return script + (await addExtensionLinux(extension_csv, version));
         default:
             return await utils.log('Platform ' + os_version + ' is not supported', os_version, 'error');
     }
diff --git a/src/extensions.ts b/src/extensions.ts
index d208e1a1..7a0017e8 100644
--- a/src/extensions.ts
+++ b/src/extensions.ts
@@ -5,12 +5,10 @@ import * as utils from './utils';
  *
  * @param extension_csv
  * @param version
- * @param pipe
  */
 export async function addExtensionDarwin(
   extension_csv: string,
-  version: string,
-  pipe: string
+  version: string
 ): Promise<string> {
   const extensions: Array<string> = await utils.extensionArray(extension_csv);
   let add_script = '\n';
@@ -19,8 +17,6 @@ export async function addExtensionDarwin(
     const version_extension: string = version + extension;
     const [ext_name, ext_version]: string[] = extension.split('-');
     const ext_prefix = await utils.getExtensionPrefix(ext_name);
-    const command_prefix = 'pecl_install ';
-    let command = '';
     switch (true) {
       // match :extension
       case /^:/.test(ext_name):
@@ -74,34 +70,24 @@ export async function addExtensionDarwin(
         version_extension
       ):
       case /(7\.[1-4]|8\.[0-9])pcov/.test(version_extension):
-        command = 'add_brew_extension ' + ext_name;
-        break;
+        add_script += await utils.joins(
+          '\nadd_brew_extension',
+          ext_name,
+          ext_prefix
+        );
+        return;
       // match 5.6redis
       case /5\.6redis/.test(version_extension):
-        command = command_prefix + 'redis-2.2.8';
-        break;
-      // match 5.4imagick and 5.5imagick
-      case /^5\.[4-5]imagick$/.test(version_extension):
-        command = await utils.joins(
-          'brew install pkg-config imagemagick' + pipe,
-          '&& ' + command_prefix + 'imagick' + pipe
-        );
+        extension = 'redis-2.2.8';
         break;
       // match sqlite
       case /^sqlite$/.test(extension):
         extension = 'sqlite3';
-        command = command_prefix + extension;
         break;
       default:
-        command = command_prefix + extension;
         break;
     }
-    add_script += await utils.joins(
-      '\nadd_extension',
-      extension,
-      '"' + command + '"',
-      ext_prefix
-    );
+    add_script += await utils.joins('\nadd_extension', extension, ext_prefix);
   });
   return add_script + remove_script;
 }
@@ -210,12 +196,10 @@ export async function addExtensionWindows(
  *
  * @param extension_csv
  * @param version
- * @param pipe
  */
 export async function addExtensionLinux(
   extension_csv: string,
-  version: string,
-  pipe: string
+  version: string
 ): Promise<string> {
   const extensions: Array<string> = await utils.extensionArray(extension_csv);
   let add_script = '\n';
@@ -224,8 +208,6 @@ export async function addExtensionLinux(
     const version_extension: string = version + extension;
     const [ext_name, ext_version]: string[] = extension.split('-');
     const ext_prefix = await utils.getExtensionPrefix(ext_name);
-    const command_prefix = 'sudo $debconf_fix apt-get install -y php';
-    let command = '';
     switch (true) {
       // Match :extension
       case /^:/.test(ext_name):
@@ -288,32 +270,20 @@ export async function addExtensionLinux(
       // match 8.0xdebug3...8.9xdebug3
       case /^8\.[0-9]xdebug3$/.test(version_extension):
         extension = 'xdebug';
-        command = command_prefix + version + '-' + extension + pipe;
         break;
       // match pdo extensions
       case /.*pdo[_-].*/.test(version_extension):
         extension = extension.replace(/pdo[_-]|3/, '');
         add_script += '\nadd_pdo_extension ' + extension;
         return;
-      // match uopz
-      case /^(uopz)$/.test(extension):
-        command = command_prefix + '-' + extension + pipe;
-        break;
       // match sqlite
       case /^sqlite$/.test(extension):
         extension = 'sqlite3';
-        command = command_prefix + version + '-' + extension + pipe;
         break;
       default:
-        command = command_prefix + version + '-' + extension + pipe;
         break;
     }
-    add_script += await utils.joins(
-      '\nadd_extension',
-      extension,
-      '"' + command + '"',
-      ext_prefix
-    );
+    add_script += await utils.joins('\nadd_extension', extension, ext_prefix);
   });
   return add_script + remove_script;
 }
@@ -332,15 +302,15 @@ export async function addExtension(
   os_version: string,
   no_step = false
 ): Promise<string> {
-  const pipe: string = await utils.suppressOutput(os_version);
+  const log: string = await utils.stepLog('Setup Extensions', os_version);
   let script = '\n';
   switch (no_step) {
     case true:
-      script += (await utils.stepLog('Setup Extensions', os_version)) + pipe;
+      script += log + (await utils.suppressOutput(os_version));
       break;
     case false:
     default:
-      script += await utils.stepLog('Setup Extensions', os_version);
+      script += log;
       break;
   }
 
@@ -348,9 +318,9 @@ export async function addExtension(
     case 'win32':
       return script + (await addExtensionWindows(extension_csv, version));
     case 'darwin':
-      return script + (await addExtensionDarwin(extension_csv, version, pipe));
+      return script + (await addExtensionDarwin(extension_csv, version));
     case 'linux':
-      return script + (await addExtensionLinux(extension_csv, version, pipe));
+      return script + (await addExtensionLinux(extension_csv, version));
     default:
       return await utils.log(
         'Platform ' + os_version + ' is not supported',
diff --git a/src/install.ts b/src/install.ts
index 99c6aaa6..b68f08c1 100644
--- a/src/install.ts
+++ b/src/install.ts
@@ -21,6 +21,7 @@ export async function getScript(
   const name = 'setup-php';
   const url = 'https://setup-php.com/support';
   // taking inputs
+  process.env['fail_fast'] = await utils.getInput('fail-fast', false);
   const extension_csv: string = await utils.getInput('extensions', false);
   const ini_values_csv: string = await utils.getInput('ini-values', false);
   const coverage_driver: string = await utils.getInput('coverage', false);
@@ -60,10 +61,7 @@ export async function run(): Promise<void> {
     const tool = await utils.scriptTool(os_version);
     const script = os_version + (await utils.scriptExtension(os_version));
     const location = await getScript(script, version, os_version);
-    const fail_fast = await utils.readEnv('fail-fast');
-    await exec(
-      await utils.joins(tool, location, version, __dirname, fail_fast)
-    );
+    await exec(await utils.joins(tool, location, version, __dirname));
   } catch (error) {
     core.setFailed(error.message);
   }
diff --git a/src/scripts/darwin.sh b/src/scripts/darwin.sh
index 80d67130..2f3d56b7 100644
--- a/src/scripts/darwin.sh
+++ b/src/scripts/darwin.sh
@@ -1,46 +1,9 @@
-# Function to log start of a operation.
-step_log() {
-  message=$1
-  printf "\n\033[90;1m==> \033[0m\033[37;1m%s\033[0m\n" "$message"
-}
-
-# Function to log result of a operation.
-add_log() {
-  mark=$1
-  subject=$2
-  message=$3
-  if [ "$mark" = "$tick" ]; then
-    printf "\033[32;1m%s \033[0m\033[34;1m%s \033[0m\033[90;1m%s\033[0m\n" "$mark" "$subject" "$message"
-  else
-    printf "\033[31;1m%s \033[0m\033[34;1m%s \033[0m\033[90;1m%s\033[0m\n" "$mark" "$subject" "$message"
-    [ "$fail_fast" = "true" ] && exit 1;
-  fi
-}
-
-# Function to log result of installing extension.
-add_extension_log() {
-  extension=$1
-  status=$2
-  extension_name=$(echo "$extension" | cut -d '-' -f 1)
-  (
-    check_extension "$extension_name" && add_log "$tick" "$extension_name" "$status"
-  ) || add_log "$cross" "$extension_name" "Could not install $extension on PHP $semver"
-}
-
-# Function to read env inputs.
-read_env() {
-  [[ -z "${update}" ]] && update='false' && UPDATE='false' || update="${update}"
-  [ "$update" = false ] && [[ -n ${UPDATE} ]] && update="${UPDATE}"
-  [[ -z "${runner}" ]] && runner='github' && RUNNER='github' || runner="${runner}"
-  [ "$runner" = false ] && [[ -n ${RUNNER} ]] && runner="${RUNNER}"
-}
-
 # Function to setup environment for self-hosted runners.
-self_hosted_setup() {
-  if [[ $(command -v brew) == "" ]]; then
+self_hosted_helper() {
+  if ! command -v brew >/dev/null; then
     step_log "Setup Brew"
-    curl "${curl_opts[@]}" https://raw.githubusercontent.com/Homebrew/install/master/install.sh | bash -s >/dev/null 2>&1
-    add_log "$tick" "Brew" "Installed Homebrew"
+    curl "${curl_opts[@]:?}" https://raw.githubusercontent.com/Homebrew/install/master/install.sh | bash -s >/dev/null 2>&1
+    add_log "${tick:?}" "Brew" "Installed Homebrew"
   fi
 }
 
@@ -48,59 +11,27 @@ self_hosted_setup() {
 remove_extension() {
   extension=$1
   if check_extension "$extension"; then
-    sudo sed -i '' "/$extension/d" "$ini_file"
-    sudo rm -rf "$scan_dir"/*"$extension"* >/dev/null 2>&1
-    sudo rm -rf "$ext_dir"/"$extension".so >/dev/null 2>&1
-    (! check_extension "$extension" && add_log "$tick" ":$extension" "Removed") ||
-      add_log "$cross" ":$extension" "Could not remove $extension on PHP $semver"
+    sudo sed -i '' "/$extension/d" "${ini_file:?}"
+    sudo rm -rf "${scan_dir:?}"/*"$extension"* "${ext_dir:?}"/"$extension".so >/dev/null 2>&1
+    (! check_extension "$extension" && add_log "${tick:?}" ":$extension" "Removed") ||
+      add_log "${cross:?}" ":$extension" "Could not remove $extension on PHP ${semver:?}"
   else
-    add_log "$tick" ":$extension" "Could not find $extension on PHP $semver"
+    add_log "${tick:?}" ":$extension" "Could not find $extension on PHP $semver"
   fi
 }
 
-# Function to test if extension is loaded.
-check_extension() {
-  extension=$1
-  if [ "$extension" != "mysql" ]; then
-    php -m | grep -i -q -w "$extension"
-  else
-    php -m | grep -i -q "$extension"
-  fi
-}
-
-# Function to get the PECL version.
-get_pecl_version() {
-  extension=$1
-  stability="$(echo "$2" | grep -m 1 -Eio "(alpha|beta|rc|snapshot|preview)")"
-  pecl_rest='https://pecl.php.net/rest/r/'
-  response=$(curl "${curl_opts[@]}" "$pecl_rest$extension"/allreleases.xml)
-  pecl_version=$(echo "$response" | grep -m 1 -Eio "(\d*\.\d*\.\d*$stability\d*)")
-  if [ ! "$pecl_version" ]; then
-    pecl_version=$(echo "$response" | grep -m 1 -Eo "(\d*\.\d*\.\d*)")
-  fi
-  echo "$pecl_version"
-}
-
-# Function to install PECL extensions and accept default options
-pecl_install() {
-  local extension=$1
-  yes '' | sudo pecl install -f "$extension" >/dev/null 2>&1
-}
-
 # Function to install a specific version of PECL extension.
 add_pecl_extension() {
   extension=$1
   pecl_version=$2
   prefix=$3
+  enable_extension "$extension" "$prefix"
   if [[ $pecl_version =~ .*(alpha|beta|rc|snapshot|preview).* ]]; then
     pecl_version=$(get_pecl_version "$extension" "$pecl_version")
   fi
-  if ! check_extension "$extension" && [ -e "$ext_dir/$extension.so" ]; then
-    echo "$prefix=$ext_dir/$extension.so" >>"$ini_file"
-  fi
   ext_version=$(php -r "echo phpversion('$extension');")
   if [ "$ext_version" = "$pecl_version" ]; then
-    add_log "$tick" "$extension" "Enabled"
+    add_log "${tick:?}" "$extension" "Enabled"
   else
     remove_extension "$extension" >/dev/null 2>&1
     pecl_install "$extension-$pecl_version"
@@ -111,169 +42,65 @@ add_pecl_extension() {
 # Function to install a php extension from shivammathur/extensions tap.
 add_brew_extension() {
   extension=$1
-  if ! brew tap | grep shivammathur/extensions; then
-    brew tap --shallow shivammathur/extensions
+  prefix=$2
+  enable_extension "$extension" "$prefix"
+  if check_extension "$extension"; then
+    add_log "${tick:?}" "$extension" "Enabled"
+  else
+    if ! brew tap | grep -q shivammathur/extensions; then
+      brew tap --shallow shivammathur/extensions >/dev/null 2>&1
+    fi
+    brew install "$extension@$version" >/dev/null 2>&1
+    sudo cp "$(brew --prefix)/opt/$extension@$version/$extension.so" "$ext_dir"
+    add_extension_log "$extension" "Installed and enabled"
   fi
-  brew install "$extension@$version"
-  sudo cp "$(brew --prefix)/opt/$extension@$version/$extension.so" "$ext_dir"
 }
 
 # Function to setup extensions
 add_extension() {
   extension=$1
-  install_command=$2
-  prefix=$3
-  if ! check_extension "$extension" && [ -e "$ext_dir/$extension.so" ]; then
-    echo "$prefix=$ext_dir/$extension.so" >>"$ini_file" && add_log "$tick" "$extension" "Enabled"
-  elif check_extension "$extension"; then
-    add_log "$tick" "$extension" "Enabled"
-  elif ! check_extension "$extension"; then
-    eval "$install_command" >/dev/null 2>&1 &&
-      if [[ "$version" =~ $old_versions ]]; then echo "$prefix=$ext_dir/$extension.so" >>"$ini_file"; fi
+  prefix=$2
+  enable_extension "$extension" "$prefix"
+  if check_extension "$extension"; then
+    add_log "${tick:?}" "$extension" "Enabled"
+  else
+    [[ "$version" =~ 5.[4-5] ]] && [ "$extension" = "imagick" ] && brew install pkg-config imagemagick >/dev/null 2>&1
+    pecl_install "$extension" >/dev/null 2>&1 &&
+      if [[ "$version" =~ ${old_versions:?} ]]; then echo "$prefix=$ext_dir/$extension.so" >>"$ini_file"; fi
     add_extension_log "$extension" "Installed and enabled"
   fi
 }
 
-# Function to setup pre-release extensions using PECL.
-add_unstable_extension() {
-  extension=$1
-  stability=$2
-  prefix=$3
-  pecl_version=$(get_pecl_version "$extension" "$stability")
-  add_pecl_extension "$extension" "$pecl_version" "$prefix"
-}
-
-# Function to configure composer
-configure_composer() {
-  tool_path=$1
-  sudo ln -sf "$tool_path" "$tool_path.phar"
-  php -r "try {\$p=new Phar('$tool_path.phar', 0);exit(0);} catch(Exception \$e) {exit(1);}"
-  if [ $? -eq 1 ]; then
-    add_log "$cross" "composer" "Could not download composer"
-    exit 1
-  fi
-  composer -q global config process-timeout 0
-  echo "$composer_bin" >> "$GITHUB_PATH"
-  if [ -n "$COMPOSER_TOKEN" ]; then
-    composer -q global config github-oauth.github.com "$COMPOSER_TOKEN"
-  fi
-}
-
-# Function to extract tool version.
-get_tool_version() {
-  tool=$1
-  param=$2
-  version_regex="[0-9]+((\.{1}[0-9]+)+)(\.{0})(-[a-zA-Z0-9]+){0,1}"
-  if [ "$tool" = "composer" ]; then
-    if [ "$param" != "snapshot" ]; then
-      grep -Ea "const\sVERSION" "$tool_path_dir/composer" | grep -Eo "$version_regex"
-    else
-      trunk=$(grep -Ea "const\sBRANCH_ALIAS_VERSION" "$tool_path_dir/composer" | grep -Eo "$version_regex")
-      commit=$(grep -Ea "const\sVERSION" "$tool_path_dir/composer" | grep -Eo "[a-zA-z0-9]+" | tail -n 1)
-      echo "$trunk+$commit"
-    fi
-  else
-    $tool "$param" 2>/dev/null | sed -Ee "s/[Cc]omposer(.)?$version_regex//g" | grep -Eo "$version_regex" | head -n 1
-  fi
-}
-
-# Function to setup a remote tool.
-add_tool() {
-  url=$1
-  tool=$2
-  ver_param=$3
-  tool_path="$tool_path_dir/$tool"
-  if [ ! -e "$tool_path" ]; then
-    rm -rf "$tool_path"
-  fi
-  if [ "$tool" = "composer" ]; then
-    IFS="," read -r -a urls <<< "$url"
-    status_code=$(sudo curl -f -w "%{http_code}" -o "$tool_path" "${curl_opts[@]}" "${urls[0]}") ||
-    status_code=$(sudo curl -w "%{http_code}" -o "$tool_path" "${curl_opts[@]}" "${urls[1]}")
-  else
-    status_code=$(sudo curl -w "%{http_code}" -o "$tool_path" "${curl_opts[@]}" "$url")
-    if [ "$status_code" != "200" ] && [[ "$url" =~ .*github.com.*releases.*latest.* ]]; then
-      url=$(echo $url | sed -e "s|releases/latest/download|releases/download/$(curl "${curl_opts[@]}" "$(echo "$url" | cut -d '/' -f '1-5')/releases" | grep -Eo -m 1 "([0-9]+\.[0-9]+\.[0-9]+)/$(echo "$url" | sed -e "s/.*\///")" | cut -d '/' -f 1)|")
-      status_code=$(sudo curl -w "%{http_code}" -o "$tool_path" "${curl_opts[@]}" "$url")
-    fi
-  fi
-  if [ "$status_code" = "200" ]; then
-    sudo chmod a+x "$tool_path"
-    if [ "$tool" = "composer" ]; then
-      configure_composer "$tool_path"
-    elif [ "$tool" = "phan" ]; then
-      add_extension fileinfo "pecl_install fileinfo" extension >/dev/null 2>&1
-      add_extension ast "pecl_install ast" extension >/dev/null 2>&1
-    elif [ "$tool" = "phive" ]; then
-      add_extension curl "pecl_install curl" extension >/dev/null 2>&1
-      add_extension mbstring "pecl_install mbstring" extension >/dev/null 2>&1
-      add_extension xml "pecl_install xml" extension >/dev/null 2>&1
-    elif [ "$tool" = "cs2pr" ]; then
-      sudo sed -i '' 's/exit(9)/exit(0)/' "$tool_path"
-      tr -d '\r' <"$tool_path" | sudo tee "$tool_path.tmp" >/dev/null 2>&1 && sudo mv "$tool_path.tmp" "$tool_path"
-      sudo chmod a+x "$tool_path"
-    elif [ "$tool" = "wp-cli" ]; then
-      sudo cp -p "$tool_path" "$tool_path_dir"/wp
-    fi
-    tool_version=$(get_tool_version "$tool" "$ver_param")
-    add_log "$tick" "$tool" "Added $tool $tool_version"
-  else
-    add_log "$cross" "$tool" "Could not setup $tool"
-  fi
-}
-
-# Function to add a tool using composer.
-add_composertool() {
-  tool=$1
-  release=$2
-  prefix=$3
-  (
-    composer global require "$prefix$release" >/dev/null 2>&1 &&
-    json=$(grep "$prefix$tool" /Users/"$USER"/.composer/composer.json) &&
-    tool_version=$(get_tool_version 'echo' "$json") &&
-    add_log "$tick" "$tool" "Added $tool $tool_version"
-  ) || add_log "$cross" "$tool" "Could not setup $tool"
-  if [ -e "$composer_bin/composer" ]; then
-    sudo cp -p "$tool_path_dir/composer" "$composer_bin"
-  fi
-}
-
 # Function to handle request to add phpize and php-config.
 add_devtools() {
   tool=$1
-  add_log "$tick" "$tool" "Added $tool $semver"
-}
-
-# Function to configure PECL
-configure_pecl() {
-  for tool in pear pecl; do
-    sudo "$tool" config-set php_ini "$ini_file"
-    sudo "$tool" channel-update "$tool".php.net
-  done
+  add_log "${tick:?}" "$tool" "Added $tool $semver"
 }
 
 # Function to handle request to add PECL.
 add_pecl() {
   pecl_version=$(get_tool_version "pecl" "version")
-  add_log "$tick" "PECL" "Found PECL $pecl_version"
+  add_log "${tick:?}" "PECL" "Found PECL $pecl_version"
 }
 
 # Function to update dependencies.
 update_dependencies() {
-  if [[ "$version" =~ $nightly_versions ]] && [ "$runner" != "self-hosted" ]; then
+  if [[ "$version" =~ ${nightly_versions:?} ]] && [ "${runner:?}" != "self-hosted" ]; then
+    tap_dir="$(brew --prefix)/Homebrew/Library/Taps"
     while read -r formula; do
-      curl -o "$(brew --prefix)/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/$formula.rb" "${curl_opts[@]}" "https://raw.githubusercontent.com/Homebrew/homebrew-core/master/Formula/$formula.rb" &
-      to_wait+=( $! )
-    done < "$(brew --prefix)/Homebrew/Library/Taps/shivammathur/homebrew-php/.github/deps/${ImageOS:?}_${ImageVersion:?}"
+      curl -o "$tap_dir/homebrew/homebrew-core/Formula/$formula.rb" "${curl_opts[@]:?}" "https://raw.githubusercontent.com/Homebrew/homebrew-core/master/Formula/$formula.rb" &
+      to_wait+=($!)
+    done <"$tap_dir/shivammathur/homebrew-php/.github/deps/${ImageOS:?}_${ImageVersion:?}"
     wait "${to_wait[@]}"
   fi
 }
 
-# Function to setup PHP 5.6 and newer.
-setup_php() {
+# Function to setup PHP 5.6 and newer using Homebrew.
+add_php() {
   action=$1
-  export HOMEBREW_NO_INSTALL_CLEANUP=TRUE
-  brew tap --shallow shivammathur/homebrew-php
+  if ! brew tap | grep -q shivammathur/php; then
+    brew tap --shallow shivammathur/php
+  fi
   update_dependencies
   if brew list php@"$version" 2>/dev/null | grep -q "Error" && [ "$action" != "upgrade" ]; then
     brew unlink php@"$version"
@@ -283,51 +110,42 @@ setup_php() {
   brew link --force --overwrite php@"$version"
 }
 
+# Function to Setup PHP
+setup_php() {
+  step_log "Setup PHP"
+  existing_version=$(php-config --version 2>/dev/null | cut -c 1-3)
+  if [[ "$version" =~ ${old_versions:?} ]]; then
+    curl "${curl_opts[@]:?}" "${github:?}/php5-darwin/releases/latest/download/install.sh" | bash -s "${version/./}" >/dev/null 2>&1
+    status="Installed"
+  elif [ "$existing_version" != "$version" ]; then
+    add_php "install" >/dev/null 2>&1
+    status="Installed"
+  elif [ "$existing_version" = "$version" ] && [ "${update:?}" = "true" ]; then
+    add_php "upgrade" >/dev/null 2>&1
+    status="Updated to"
+  else
+    status="Found"
+  fi
+  ini_file=$(php -d "date.timezone=UTC" --ini | grep "Loaded Configuration" | sed -e "s|.*:s*||" | sed "s/ //g")
+  sudo chmod 777 "$ini_file" "${tool_path_dir:?}"
+  echo -e "date.timezone=UTC\nmemory_limit=-1" >>"$ini_file"
+  ext_dir=$(php -i | grep -Ei "extension_dir => /" | sed -e "s|.*=> s*||")
+  scan_dir=$(php --ini | grep additional | sed -e "s|.*: s*||")
+  sudo mkdir -m 777 -p "$ext_dir" "$HOME/.composer"
+  semver=$(php -v | head -n 1 | cut -f 2 -d ' ')
+  if [[ ! "$version" =~ $old_versions ]]; then configure_pecl >/dev/null 2>&1; fi
+  sudo cp "$dist"/../src/configs/*.json "$RUNNER_TOOL_CACHE/"
+  add_log "$tick" "PHP" "$status PHP $semver"
+}
+
 # Variables
-tick="✓"
-cross="✗"
 version=$1
 dist=$2
-fail_fast=$3
-nodot_version=${1/./}
-nightly_versions="8.[0-1]"
-old_versions="5.[3-5]"
-composer_bin="/Users/$USER/.composer/vendor/bin"
-tool_path_dir="/usr/local/bin"
-curl_opts=(-sL)
-existing_version=$(php-config --version 2>/dev/null | cut -c 1-3)
+export HOMEBREW_NO_INSTALL_CLEANUP=1
+export HOMEBREW_NO_AUTO_UPDATE=1
 
+# shellcheck source=.
+. "${dist}"/../src/scripts/common.sh
 read_env
-if [ "$runner" = "self-hosted" ]; then
-  if [[ "$version" =~ $old_versions ]]; then
-    add_log "$cross" "PHP" "PHP $version is not supported on self-hosted runner"
-    exit 1
-  else
-    self_hosted_setup >/dev/null 2>&1
-  fi
-fi
-
-# Setup PHP
-step_log "Setup PHP"
-if [[ "$version" =~ $old_versions ]]; then
-  curl "${curl_opts[@]}" https://github.com/shivammathur/php5-darwin/releases/latest/download/install.sh | bash -s "$nodot_version" >/dev/null 2>&1
-  status="Installed"
-elif [ "$existing_version" != "$version" ]; then
-  setup_php "install" >/dev/null 2>&1
-  status="Installed"
-elif [ "$existing_version" = "$version" ] && [ "$update" = "true" ]; then
-  setup_php "upgrade" >/dev/null 2>&1
-  status="Updated to"
-else
-  status="Found"
-fi
-ini_file=$(php -d "date.timezone=UTC" --ini | grep "Loaded Configuration" | sed -e "s|.*:s*||" | sed "s/ //g")
-sudo chmod 777 "$ini_file" "$tool_path_dir"
-echo -e "date.timezone=UTC\nmemory_limit=-1" >>"$ini_file"
-ext_dir=$(php -i | grep -Ei "extension_dir => /" | sed -e "s|.*=> s*||")
-scan_dir=$(php --ini | grep additional | sed -e "s|.*: s*||")
-sudo mkdir -m 777 -p "$ext_dir" "/Users/$USER/.composer"
-semver=$(php -v | head -n 1 | cut -f 2 -d ' ')
-if [[ ! "$version" =~ $old_versions ]]; then configure_pecl >/dev/null 2>&1; fi
-sudo cp "$dist"/../src/configs/*.json "$RUNNER_TOOL_CACHE/"
-add_log "$tick" "PHP" "$status PHP $semver"
+self_hosted_setup
+setup_php
diff --git a/src/scripts/ext/oci.sh b/src/scripts/ext/oci.sh
index 5b462501..dce1c16c 100644
--- a/src/scripts/ext/oci.sh
+++ b/src/scripts/ext/oci.sh
@@ -83,16 +83,9 @@ patch_pdo_oci_config() {
 add_dependencies() {
   if [ "$os" = 'Linux' ]; then
     if [ "${runner:?}" = "self-hosted" ]; then
-      if ! [[ ${version:?} =~ $nightly_versions ]]; then
-        ${apt_install:?} --no-upgrade --no-install-recommends autoconf automake libaio-dev gcc g++ php"$version"-dev
-      else
-        ${apt_install:?} --no-upgrade --no-install-recommends autoconf automake libaio-dev gcc g++
-      fi
-    else
-      ! [[ ${version:?} =~ $nightly_versions ]] && update_lists && ${apt_install:?} --no-upgrade --no-install-recommends php"$version"-dev
+      ${apt_install:?} --no-upgrade --no-install-recommends autoconf automake libaio-dev gcc g++
     fi
-    sudo update-alternatives --set php-config /usr/bin/php-config"$version"
-    sudo update-alternatives --set phpize /usr/bin/phpize"$version"
+    ! [[ ${version:?} =~ $nightly_versions ]] && add_devtools phpize
   fi
 }
 
diff --git a/src/scripts/linux.sh b/src/scripts/linux.sh
index 071dce37..fdcfa9c4 100644
--- a/src/scripts/linux.sh
+++ b/src/scripts/linux.sh
@@ -1,39 +1,10 @@
-# Function to log start of a operation.
-step_log() {
-  message=$1
-  printf "\n\033[90;1m==> \033[0m\033[37;1m%s\033[0m\n" "$message"
-}
-
-# Function to log result of a operation.
-add_log() {
-  mark=$1
-  subject=$2
-  message=$3
-  if [ "$mark" = "$tick" ]; then
-    printf "\033[32;1m%s \033[0m\033[34;1m%s \033[0m\033[90;1m%s\033[0m\n" "$mark" "$subject" "$message"
-  else
-    printf "\033[31;1m%s \033[0m\033[34;1m%s \033[0m\033[90;1m%s\033[0m\n" "$mark" "$subject" "$message"
-    [ "$fail_fast" = "true" ] && exit 1;
+# Function to setup environment for self-hosted runners.
+self_hosted_helper() {
+  if ! command -v apt-fast >/dev/null; then
+    sudo ln -sf /usr/bin/apt-get /usr/bin/apt-fast
   fi
-}
-
-# Function to log result of installing extension.
-add_extension_log() {
-  extension=$1
-  status=$2
-  extension_name=$(echo "$extension" | cut -d '-' -f 1)
-  (
-    check_extension "$extension_name" && add_log "$tick" "$extension_name" "$status"
-  ) || add_log "$cross" "$extension_name" "Could not install $extension on PHP $semver"
-}
-
-# Function to read env inputs.
-read_env() {
-  . /etc/lsb-release
-  [[ -z "${update}" ]] && update='false' && UPDATE='false' || update="${update}"
-  [ "$update" = false ] && [[ -n ${UPDATE} ]] && update="${UPDATE}"
-  [[ -z "${runner}" ]] && runner='github' && RUNNER='github' || runner="${runner}"
-  [ "$runner" = false ] && [[ -n ${RUNNER} ]] && runner="${RUNNER}"
+  install_packages curl make software-properties-common unzip
+  add_ppa
 }
 
 # Function to backup and cleanup package lists.
@@ -64,70 +35,24 @@ update_lists() {
     [ "$DISTRIB_RELEASE" = "20.04" ] && add_ppa >/dev/null 2>&1
     cleanup_lists
     sudo "$debconf_fix" apt-get update >/dev/null 2>&1
-    echo '' | sudo tee "/tmp/setup_php" >/dev/null 2>&1
+    echo '' | sudo tee /tmp/setup_php >/dev/null 2>&1
   fi
 }
 
-# Function to setup environment for self-hosted runners.
-self_hosted_setup() {
-  if ! command -v apt-fast >/dev/null; then
-    sudo ln -sf /usr/bin/apt-get /usr/bin/apt-fast
-  fi
-  update_lists && $apt_install curl make software-properties-common unzip
-  add_ppa
-}
-
-# Function to configure PECL.
-configure_pecl() {
-  if [ "$pecl_config" = "false" ] && [ -e /usr/bin/pecl ]; then
-
-    for tool in pear pecl; do
-      sudo "$tool" config-set php_ini "$scan_dir"/99-pecl.ini
-      sudo "$tool" channel-update "$tool".php.net
-    done
-    pecl_config="true"
-  fi
-}
-
-# Function to get the PECL version of an extension.
-get_pecl_version() {
-  extension=$1
-  stability="$(echo "$2" | grep -m 1 -Eio "(alpha|beta|rc|snapshot|preview)")"
-  pecl_rest='https://pecl.php.net/rest/r/'
-  response=$(curl "${curl_opts[@]}" "$pecl_rest$extension"/allreleases.xml)
-  pecl_version=$(echo "$response" | grep -m 1 -Pio "(\d*\.\d*\.\d*$stability\d*)")
-  if [ ! "$pecl_version" ]; then
-    pecl_version=$(echo "$response" | grep -m 1 -Po "(\d*\.\d*\.\d*)")
-  fi
-  echo "$pecl_version"
-}
-
-# Function to install PECL extensions and accept default options
-pecl_install() {
-  local extension=$1
-  yes '' | sudo pecl install -f "$extension" >/dev/null 2>&1
-}
-
-# Function to check if an extension is loaded.
-check_extension() {
-  extension=$1
-  if [ "$extension" != "mysql" ]; then
-    php -m | grep -i -q -w "$extension"
-  else
-    php -m | grep -i -q "$extension"
-  fi
+# Function to install a package
+install_packages() {
+  packages=("$@")
+  $apt_install "${packages[@]}" >/dev/null 2>&1 || update_lists && $apt_install "${packages[@]}" >/dev/null 2>&1
 }
 
 # Function to delete extensions.
 delete_extension() {
   extension=$1
-  sudo sed -i "/$extension/d" "$ini_file"
-  sudo sed -i "/$extension/d" "$pecl_file"
-  sudo rm -rf "$scan_dir"/*"$extension"* >/dev/null 2>&1
-  sudo rm -rf "$ext_dir"/"$extension".so >/dev/null 2>&1
-  if [ "$runner" = "self-hosted" ]; then
-    $apt_remove "php-$extension" >/dev/null 2>&1 || true
-    $apt_remove "php$version-$extension" >/dev/null 2>&1 || true
+  sudo sed -i "/$extension/d" "${ini_file:?}"
+  sudo sed -i "/$extension/d" "${pecl_file:?}"
+  sudo rm -rf "${scan_dir:?}"/*"$extension"* "${ext_dir:?}"/"$extension".so >/dev/null 2>&1
+  if [ "${runner:?}" = "self-hosted" ]; then
+    $apt_remove "php-$extension" "php$version-$extension" >/dev/null 2>&1 || true
   fi
 }
 
@@ -135,21 +60,14 @@ delete_extension() {
 remove_extension() {
   extension=$1
   if check_extension "$extension"; then
-    if [[ ! "$version" =~ $old_versions ]] && [ -e /etc/php/"$version"/mods-available/"$extension".ini ]; then
+    if [[ ! "$version" =~ ${old_versions:?} ]] && [ -e /etc/php/"$version"/mods-available/"$extension".ini ]; then
       sudo phpdismod -v "$version" "$extension" >/dev/null 2>&1
     fi
     delete_extension "$extension"
-    (! check_extension "$extension" && add_log "$tick" ":$extension" "Removed") ||
-    add_log "$cross" ":$extension" "Could not remove $extension on PHP $semver"
+    (! check_extension "$extension" && add_log "${tick:?}" ":$extension" "Removed") ||
+      add_log "${cross:?}" ":$extension" "Could not remove $extension on PHP ${semver:?}"
   else
-    add_log "$tick" ":$extension" "Could not find $extension on PHP $semver"
-  fi
-}
-
-# Function to enable existing extensions.
-enable_extension() {
-  if ! check_extension "$1" && [ -e "$ext_dir/$1.so" ]; then
-    echo "$2=$1.so" >>"$pecl_file"
+    add_log "${tick:?}" ":$extension" "Could not find $extension on PHP $semver"
   fi
 }
 
@@ -157,19 +75,19 @@ enable_extension() {
 add_pdo_extension() {
   pdo_ext="pdo_$1"
   if check_extension "$pdo_ext"; then
-    add_log "$tick" "$pdo_ext" "Enabled"
+    add_log "${tick:?}" "$pdo_ext" "Enabled"
   else
-    read -r ext ext_name <<< "$1 $1"
+    ext=$1; ext_name=$1;
     sudo rm -rf "$scan_dir"/*pdo.ini >/dev/null 2>&1
-    if ! check_extension "pdo" 2>/dev/null; then echo "extension=pdo.so" >> "$ini_file"; fi
+    if ! check_extension "pdo" 2>/dev/null; then echo "extension=pdo.so" >>"$ini_file"; fi
     if [ "$ext" = "mysql" ]; then
       enable_extension "mysqlnd" "extension"
       ext_name="mysqli"
     elif [ "$ext" = "sqlite" ]; then
-      read -r ext ext_name <<< "sqlite3 sqlite3"
+      ext="sqlite3"; ext_name="sqlite3";
     fi
-    add_extension "$ext_name" "$apt_install php$version-$ext" "extension" >/dev/null 2>&1
-    add_extension "$pdo_ext" "pecl_install $pdo_ext" "extension" >/dev/null 2>&1
+    add_extension "$ext_name" "extension" >/dev/null 2>&1
+    add_extension "$pdo_ext" "extension" >/dev/null 2>&1
     add_extension_log "$pdo_ext" "Enabled"
   fi
 }
@@ -177,20 +95,17 @@ add_pdo_extension() {
 # Function to add extensions.
 add_extension() {
   extension=$1
-  install_command=$2
-  prefix=$3
+  prefix=$2
   enable_extension "$extension" "$prefix"
   if check_extension "$extension"; then
-    add_log "$tick" "$extension" "Enabled"
+    add_log "${tick:?}" "$extension" "Enabled"
   else
     if [[ "$version" =~ 5.[4-5] ]]; then
-      install_command="update_lists && ${install_command/5\.[4-5]-$extension/5-$extension=$release_version}"
-    fi
-    if [[ "$version" =~ $nightly_versions ]]; then
+      install_packages "php5-$extension=$release_version"
+    elif [[ "$version" =~ ${nightly_versions:?} ]]; then
       pecl_install "$extension"
     else
-      eval "$install_command" >/dev/null 2>&1 ||
-      (update_lists && eval "$install_command" >/dev/null 2>&1) || pecl_install "$extension"
+      install_packages "php$version-$extension" || pecl_install "$extension"
     fi
     add_extension_log "$extension" "Installed and enabled"
   fi
@@ -205,12 +120,10 @@ add_pecl_extension() {
   if [[ $pecl_version =~ .*(alpha|beta|rc|snapshot|preview).* ]]; then
     pecl_version=$(get_pecl_version "$extension" "$pecl_version")
   fi
-  if ! check_extension "$extension" && [ -e "$ext_dir/$extension.so" ]; then
-    echo "$prefix=$ext_dir/$extension.so" >>"$pecl_file"
-  fi
+  enable_extension "$extension" "$prefix"
   ext_version=$(php -r "echo phpversion('$extension');")
   if [ "$ext_version" = "$pecl_version" ]; then
-    add_log "$tick" "$extension" "Enabled"
+    add_log "${tick:?}" "$extension" "Enabled"
   else
     delete_extension "$extension"
     pecl_install "$extension-$pecl_version"
@@ -218,15 +131,6 @@ add_pecl_extension() {
   fi
 }
 
-# Function to pre-release extensions using PECL.
-add_unstable_extension() {
-  extension=$1
-  stability=$2
-  prefix=$3
-  pecl_version=$(get_pecl_version "$extension" "$stability")
-  add_pecl_extension "$extension" "$pecl_version" "$prefix"
-}
-
 # Function to install extension from source
 add_extension_from_source() {
   extension=$1
@@ -237,128 +141,37 @@ add_extension_from_source() {
   (
     add_devtools phpize
     delete_extension "$extension"
-    curl -o /tmp/"$extension".tar.gz  "${curl_opts[@]}" https://github.com/"$repo"/archive/"$release".tar.gz
+    curl -o /tmp/"$extension".tar.gz "${curl_opts[@]:?}" https://github.com/"$repo"/archive/"$release".tar.gz
     tar xf /tmp/"$extension".tar.gz -C /tmp
     cd /tmp/"$extension-$release" || exit 1
-    phpize  && ./configure "$args" && make && sudo make install
+    phpize && ./configure "$args" && make -j"$(nproc)" && sudo make install
     enable_extension "$extension" "$prefix"
   ) >/dev/null 2>&1
   add_extension_log "$extension-$release" "Installed and enabled"
 }
 
-# Function to configure composer
-configure_composer() {
-  tool_path=$1
-  sudo ln -sf "$tool_path" "$tool_path.phar"
-  php -r "try {\$p=new Phar('$tool_path.phar', 0);exit(0);} catch(Exception \$e) {exit(1);}"
-  if [ $? -eq 1 ]; then
-    add_log "$cross" "composer" "Could not download composer"
-    exit 1;
-  fi
-  composer -q global config process-timeout 0
-  echo "$composer_bin" >> "$GITHUB_PATH"
-  if [ -n "$COMPOSER_TOKEN" ]; then
-    composer -q global config github-oauth.github.com "$COMPOSER_TOKEN"
-  fi
-}
-
-# Function to extract tool version.
-get_tool_version() {
-  tool=$1
-  param=$2
-  version_regex="[0-9]+((\.{1}[0-9]+)+)(\.{0})(-[a-zA-Z0-9]+){0,1}"
-  if [ "$tool" = "composer" ]; then
-    if [ "$param" != "snapshot" ]; then
-      grep -Ea "const\sVERSION" "$tool_path_dir/composer" | grep -Eo "$version_regex"
-    else
-      trunk=$(grep -Ea "const\sBRANCH_ALIAS_VERSION" "$tool_path_dir/composer" | grep -Eo "$version_regex")
-      commit=$(grep -Ea "const\sVERSION" "$tool_path_dir/composer" | grep -Eo "[a-zA-z0-9]+" | tail -n 1)
-      echo "$trunk+$commit"
-    fi
-  else
-    $tool "$param" 2>/dev/null | sed -Ee "s/[Cc]omposer(.)?$version_regex//g" | grep -Eo "$version_regex" | head -n 1
-  fi
-}
-
-# Function to setup a remote tool.
-add_tool() {
-  url=$1
-  tool=$2
-  ver_param=$3
-  tool_path="$tool_path_dir/$tool"
-  if [ ! -e "$tool_path" ]; then
-    rm -rf "$tool_path"
-  fi
-  if [ "$tool" = "composer" ]; then
-    IFS="," read -r -a urls <<< "$url"
-    status_code=$(sudo curl -f -w "%{http_code}" -o "$tool_path" "${curl_opts[@]}" "${urls[0]}") ||
-    status_code=$(sudo curl -w "%{http_code}" -o "$tool_path" "${curl_opts[@]}" "${urls[1]}")
-  else
-    status_code=$(sudo curl -w "%{http_code}" -o "$tool_path" "${curl_opts[@]}" "$url")
-    if [ "$status_code" != "200" ] && [[ "$url" =~ .*github.com.*releases.*latest.* ]]; then
-      url=$(echo $url | sed -e "s|releases/latest/download|releases/download/$(curl "${curl_opts[@]}" "$(echo "$url" | cut -d '/' -f '1-5')/releases" | grep -Eo -m 1 "([0-9]+\.[0-9]+\.[0-9]+)/$(echo "$url" | sed -e "s/.*\///")" | cut -d '/' -f 1)|")
-      status_code=$(sudo curl -w "%{http_code}" -o "$tool_path" "${curl_opts[@]}" "$url")
-    fi
-  fi
-  if [ "$status_code" = "200" ]; then
-    sudo chmod a+x "$tool_path"
-    if [ "$tool" = "composer" ]; then
-      configure_composer "$tool_path"
-    elif [ "$tool" = "cs2pr" ]; then
-      sudo sed -i 's/\r$//; s/exit(9)/exit(0)/' "$tool_path"
-    elif [ "$tool" = "phan" ]; then
-      add_extension fileinfo "$apt_install php$version-fileinfo" extension >/dev/null 2>&1
-      add_extension ast "$apt_install php-ast" extension >/dev/null 2>&1
-    elif [ "$tool" = "phive" ]; then
-      add_extension curl "$apt_install php$version-curl" extension >/dev/null 2>&1
-      add_extension mbstring "$apt_install php$version-mbstring" extension >/dev/null 2>&1
-      add_extension xml "$apt_install php$version-xml" extension >/dev/null 2>&1
-    elif [ "$tool" = "wp-cli" ]; then
-      sudo cp -p "$tool_path" "$tool_path_dir"/wp
-    fi
-    tool_version=$(get_tool_version "$tool" "$ver_param")
-    add_log "$tick" "$tool" "Added $tool $tool_version"
-  else
-    add_log "$cross" "$tool" "Could not setup $tool"
-  fi
-}
-
-# Function to setup a tool using composer.
-add_composertool() {
-  tool=$1
-  release=$2
-  prefix=$3
-  (
-    composer global require "$prefix$release" >/dev/null 2>&1 &&
-    json=$(grep "$prefix$tool" /home/"$USER"/.composer/composer.json) &&
-    tool_version=$(get_tool_version 'echo' "$json") &&
-    add_log "$tick" "$tool" "Added $tool $tool_version"
-  ) || add_log "$cross" "$tool" "Could not setup $tool"
-  if [ -e "$composer_bin/composer" ]; then
-    sudo cp -p "$tool_path_dir/composer" "$composer_bin"
-  fi
-}
-
 # Function to setup phpize and php-config.
 add_devtools() {
   tool=$1
-  if ! [ -e "/usr/bin/phpize$version" ] || ! [ -e "/usr/bin/php-config$version" ]; then
-    update_lists && $apt_install php"$version"-dev php"$version"-xml >/dev/null 2>&1
+  if ! command -v "$tool$version" >/dev/null; then
+    install_packages "php$version-dev" "php$version-xml"
   fi
   sudo update-alternatives --set php-config /usr/bin/php-config"$version" >/dev/null 2>&1
   sudo update-alternatives --set phpize /usr/bin/phpize"$version" >/dev/null 2>&1
-  configure_pecl >/dev/null 2>&1
-  add_log "$tick" "$tool" "Added $tool $semver"
+  if command -v pecl >/dev/null; then
+    configure_pecl >/dev/null 2>&1
+  fi
+  add_log "${tick:?}" "$tool" "Added $tool $semver"
 }
 
 # Function to setup the nightly build from shivammathur/php-builder
 setup_nightly() {
-  curl "${curl_opts[@]}" "$github"/php-builder/releases/latest/download/install.sh | bash -s "$runner" "$version"
+  curl "${curl_opts[@]:?}" "${github:?}"/php-builder/releases/latest/download/install.sh | bash -s "$runner" "$version"
 }
 
 # Function to setup PHP 5.3, PHP 5.4 and PHP 5.5.
 setup_old_versions() {
-  curl "${curl_opts[@]}" "$github"/php5-ubuntu/releases/latest/download/install.sh | bash -s "$version"
+  curl "${curl_opts[@]:?}" "${github:?}"/php5-ubuntu/releases/latest/download/install.sh | bash -s "$version"
   configure_pecl
   release_version=$(php -v | head -n 1 | cut -d' ' -f 2)
 }
@@ -366,48 +179,40 @@ setup_old_versions() {
 # Function to add PECL.
 add_pecl() {
   add_devtools phpize >/dev/null 2>&1
-  if [ ! -e /usr/bin/pecl ]; then
-    $apt_install php-pear >/dev/null 2>&1 || update_lists && $apt_install php-pear >/dev/null 2>&1
+  if ! command -v pecl >/dev/null; then
+    install_packages php-pear
   fi
   configure_pecl >/dev/null 2>&1
   pecl_version=$(get_tool_version "pecl" "version")
-  add_log "$tick" "PECL" "Added PECL $pecl_version"
+  add_log "${tick:?}" "PECL" "Added PECL $pecl_version"
 }
 
 # Function to switch versions of PHP binaries.
 switch_version() {
   for tool in pear pecl php phar phar.phar php-cgi php-config phpize phpdbg; do
     if [ -e "/usr/bin/$tool$version" ]; then
-      sudo update-alternatives --set $tool /usr/bin/"$tool$version"
+      sudo update-alternatives --set $tool /usr/bin/"$tool$version" &
+      to_wait+=( $! )
     fi
   done
-}
-
-# Function to get PHP version in semver format.
-php_semver() {
-  if ! [[ "$version" =~ $nightly_versions ]]; then
-    php"$version" -v | head -n 1 | cut -f 2 -d ' ' | cut -f 1 -d '-'
-  else
-    php -v | head -n 1 | cut -f 2 -d ' '
-  fi
+  wait "${to_wait[@]}"
 }
 
 # Function to install packaged PHP
 add_packaged_php() {
   if [ "$runner" = "self-hosted" ] || [ "${use_package_cache:-true}" = "false" ]; then
     update_lists
-    IFS=' ' read -r -a packages <<< "$(echo "cli curl mbstring xml intl" | sed "s/[^ ]*/php$version-&/g")"
+    IFS=' ' read -r -a packages <<<"$(echo "cli curl mbstring xml intl" | sed "s/[^ ]*/php$version-&/g")"
     $apt_install "${packages[@]}"
   else
-    curl "${curl_opts[@]}" "$github"/php-ubuntu/releases/latest/download/install.sh | bash -s "$version"
+    curl "${curl_opts[@]:?}" "${github:?}"/php-ubuntu/releases/latest/download/install.sh | bash -s "$version"
   fi
 }
 
 # Function to update PHP.
 update_php() {
   initial_version=$(php_semver)
-  use_package_cache="false"
-  add_packaged_php
+  use_package_cache="false" add_packaged_php
   updated_version=$(php_semver)
   if [ "$updated_version" != "$initial_version" ]; then
     status="Updated to"
@@ -418,9 +223,9 @@ update_php() {
 
 # Function to install PHP.
 add_php() {
-  if [[ "$version" =~ $nightly_versions ]]; then
+  if [[ "$version" =~ ${nightly_versions:?} ]]; then
     setup_nightly
-  elif [[ "$version" =~ $old_versions ]]; then
+  elif [[ "$version" =~ ${old_versions:?} ]]; then
     setup_old_versions
   else
     add_packaged_php
@@ -428,68 +233,52 @@ add_php() {
   status="Installed"
 }
 
-# Variables
-tick="✓"
-cross="✗"
-pecl_config="false"
-version=$1
-dist=$2
-fail_fast=$3
-nightly_versions="8.[0-1]"
-old_versions="5.[3-5]"
-debconf_fix="DEBIAN_FRONTEND=noninteractive"
-github="https://github.com/shivammathur"
-apt_install="sudo $debconf_fix apt-get install -y"
-apt_remove="sudo $debconf_fix apt-get remove -y"
-composer_bin="/home/$USER/.composer/vendor/bin"
-tool_path_dir="/usr/local/bin"
-curl_opts=(-sL)
-existing_version=$(php-config --version 2>/dev/null | cut -c 1-3)
-
-read_env
-if [ "$runner" = "self-hosted" ]; then
-  if [[ "$version" =~ $old_versions ]]; then
-    add_log "$cross" "PHP" "PHP $version is not supported on self-hosted runner"
-    exit 1
-  else
-    self_hosted_setup >/dev/null 2>&1
-  fi
-fi
-
-# Setup PHP
-step_log "Setup PHP"
-sudo mkdir -m 777 -p /home/"$USER"/.composer /var/run /run/php
-if [ "$existing_version" != "$version" ]; then
-  if [ ! -e "/usr/bin/php$version" ]; then
-    add_php >/dev/null 2>&1
+# Function to Setup PHP
+setup_php() {
+  step_log "Setup PHP"
+  sudo mkdir -m 777 -p /var/run /run/php
+  if [ "$(php-config --version 2>/dev/null | cut -c 1-3)" != "$version" ]; then
+    if [ ! -e "/usr/bin/php$version" ]; then
+      add_php >/dev/null 2>&1
+    else
+      if [ "${update:?}" = "true" ]; then
+        update_php >/dev/null 2>&1
+      else
+        status="Switched to"
+      fi
+    fi
+    if ! [[ "$version" =~ ${old_versions:?}|${nightly_versions:?} ]]; then
+      switch_version >/dev/null 2>&1
+    fi
   else
     if [ "$update" = "true" ]; then
       update_php >/dev/null 2>&1
     else
-      status="Switched to"
+      status="Found"
     fi
   fi
-  if ! [[ "$version" =~ $old_versions ]]; then
-    switch_version >/dev/null 2>&1
-  fi
-else
-  if [ "$update" = "true" ]; then
-    update_php >/dev/null 2>&1
-  else
-    status="Found"
-    if [[ "$version" =~ $nightly_versions ]]; then
-      switch_version >/dev/null 2>&1
-    fi
-  fi
-fi
+  semver=$(php_semver)
+  ext_dir=$(php -i | grep "extension_dir => /" | sed -e "s|.*=> s*||")
+  scan_dir=$(php --ini | grep additional | sed -e "s|.*: s*||")
+  ini_file=$(php --ini | grep "Loaded Configuration" | sed -e "s|.*:s*||" | sed "s/ //g")
+  pecl_file="$scan_dir"/99-pecl.ini
+  echo '' | sudo tee "$pecl_file" >/dev/null 2>&1
+  sudo rm -rf /usr/local/bin/phpunit >/dev/null 2>&1
+  sudo chmod 777 "$ini_file" "$pecl_file" "${tool_path_dir:?}"
+  sudo cp "$dist"/../src/configs/*.json "$RUNNER_TOOL_CACHE/"
+  add_log "${tick:?}" "PHP" "$status PHP $semver"
+}
 
-semver=$(php_semver)
-ext_dir=$(php -i | grep "extension_dir => /" | sed -e "s|.*=> s*||")
-scan_dir=$(php --ini | grep additional | sed -e "s|.*: s*||")
-ini_file=$(php --ini | grep "Loaded Configuration" | sed -e "s|.*:s*||" | sed "s/ //g")
-pecl_file="$scan_dir"/99-pecl.ini
-echo '' | sudo tee "$pecl_file" >/dev/null 2>&1
-sudo rm -rf /usr/local/bin/phpunit >/dev/null 2>&1
-sudo chmod 777 "$ini_file" "$pecl_file" "$tool_path_dir"
-sudo cp "$dist"/../src/configs/*.json "$RUNNER_TOOL_CACHE/"
-add_log "$tick" "PHP" "$status PHP $semver"
+# Variables
+version=$1
+dist=$2
+debconf_fix="DEBIAN_FRONTEND=noninteractive"
+apt_install="sudo $debconf_fix apt-get install -y"
+apt_remove="sudo $debconf_fix apt-get remove -y"
+
+# shellcheck source=.
+. "${dist}"/../src/scripts/common.sh
+. /etc/lsb-release
+read_env
+self_hosted_setup
+setup_php
diff --git a/src/scripts/win32.ps1 b/src/scripts/win32.ps1
index b730e5cc..1e7b9e8b 100644
--- a/src/scripts/win32.ps1
+++ b/src/scripts/win32.ps1
@@ -97,7 +97,7 @@ Function Get-CleanPSProfile {
 }
 
 # Function to install a powershell package from GitHub.
-Function Install-GitHubPackage() {
+Function Install-PSPackage() {
   param(
     [Parameter(Position = 0, Mandatory = $true)]
     $package,
@@ -334,12 +334,15 @@ $cross = ([char]10007)
 $php_dir = 'C:\tools\php'
 $ext_dir = "$php_dir\ext"
 $bin_dir = $php_dir
+$bintray = 'https://dl.bintray.com/shivammathur/php'
 $github = 'https://github.com'
 $composer_bin = "$env:APPDATA\Composer\vendor\bin"
 $current_profile = "$env:TEMP\setup-php.ps1"
 $ProgressPreference = 'SilentlyContinue'
 $nightly_version = '8.[0-9]'
 $cert_source='CurrentUser'
+$enable_extensions = ('openssl', 'curl', 'mbstring')
+$wc = New-Object System.Net.WebClient
 
 $arch = 'x64'
 if(-not([Environment]::Is64BitOperatingSystem) -or $version -lt '7.0') {
@@ -378,7 +381,7 @@ if($env:RUNNER -eq 'self-hosted') {
 
 Add-Printf >$null 2>&1
 Step-Log "Setup PhpManager"
-Install-GitHubPackage PhpManager PhpManager\PhpManager "$github/mlocati/powershell-phpmanager/releases/latest/download/PhpManager.zip" >$null 2>&1
+Install-PSPackage PhpManager PhpManager\PhpManager "$github/mlocati/powershell-phpmanager/releases/latest/download/PhpManager.zip" >$null 2>&1
 Add-Log $tick "PhpManager" "Installed"
 
 Step-Log "Setup PHP"
@@ -391,11 +394,11 @@ if (Test-Path -LiteralPath $php_dir -PathType Container) {
 $status = "Installed"
 if ($null -eq $installed -or -not("$($installed.Version).".StartsWith(($version -replace '^(\d+(\.\d+)*).*', '$1.'))) -or $ts -ne $installed.ThreadSafe) {
   if ($version -lt '7.0' -and (Get-InstalledModule).Name -notcontains 'VcRedist') {
-    Install-GitHubPackage VcRedist VcRedist-main\VcRedist\VcRedist "$github/aaronparker/VcRedist/archive/main.zip" >$null 2>&1
+    Install-PSPackage VcRedist VcRedist-main\VcRedist\VcRedist "$github/aaronparker/VcRedist/archive/main.zip" >$null 2>&1
   }
   if ($version -match $nightly_version) {
-    Invoke-WebRequest -UseBasicParsing -Uri https://dl.bintray.com/shivammathur/php/Install-PhpNightly.ps1 -OutFile $php_dir\Install-PhpNightly.ps1 > $null 2>&1
-    & $php_dir\Install-PhpNightly.ps1 -Architecture $arch -ThreadSafe $ts -Path $php_dir -Version $version > $null 2>&1
+    $wc.DownloadFile("$bintray/Get-PhpNightly.ps1", "$php_dir\Get-PhpNightly.ps1") > $null 2>&1
+    & $php_dir\Get-PhpNightly.ps1 -Architecture $arch -ThreadSafe $ts -Path $php_dir -Version $version > $null 2>&1
   } else {
     Install-Php -Version $version -Architecture $arch -ThreadSafe $ts -InstallVC -Path $php_dir -TimeZone UTC -InitialPhpIni Production -Force > $null 2>&1
   }
@@ -409,16 +412,13 @@ if ($null -eq $installed -or -not("$($installed.Version).".StartsWith(($version
 }
 
 $installed = Get-Php -Path $php_dir
-Set-PhpIniKey -Key 'date.timezone' -Value 'UTC' -Path $php_dir
-Set-PhpIniKey -Key 'memory_limit' -Value '-1' -Path $php_dir
+('date.timezone=UTC', 'memory_limit=-1') | foreach { $p=$_.split('='); Set-PhpIniKey -Key $p[0] -Value $p[1] -Path $php_dir }
 if($version -lt "5.5") {
-  ForEach($lib in "libeay32.dll", "ssleay32.dll") {
-    Invoke-WebRequest -UseBasicParsing -Uri https://dl.bintray.com/shivammathur/php/$lib -OutFile $php_dir\$lib >$null 2>&1
-  }
-  Enable-PhpExtension -Extension openssl, curl, mbstring -Path $php_dir
+  ('libeay32.dll', 'ssleay32.dll') | ForEach { $wc.DownloadFile("$bintray/$_", "$php_dir\$_") >$null 2>&1 }
 } else {
-  Enable-PhpExtension -Extension openssl, curl, opcache, mbstring -Path $php_dir
+  $enable_extensions += ('opcache')
 }
+Enable-PhpExtension -Extension $enable_extensions -Path $php_dir
 Update-PhpCAInfo -Path $php_dir -Source $cert_source
 Copy-Item -Path $dist\..\src\configs\*.json -Destination $env:RUNNER_TOOL_CACHE
 New-Item -ItemType Directory -Path $composer_bin -Force 2>&1 | Out-Null