diff --git a/.github/workflows/experimental-workflow.yml b/.github/workflows/experimental-workflow.yml
index 4a506260..a2993568 100644
--- a/.github/workflows/experimental-workflow.yml
+++ b/.github/workflows/experimental-workflow.yml
@@ -59,7 +59,7 @@ jobs:
         run: node dist/index.js
         env:
           php-version: ${{ matrix.php-versions }}
-          extensions: mbstring, opcache, xdebug, pcov #optional
+          extensions: xml, opcache, xdebug, pcov #optional
           ini-values: post_max_size=256M, short_open_tag=On, date.timezone=Asia/Kolkata #optional
           coverage: pcov
 
diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 2ee9edbf..e7b62138 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -57,7 +57,7 @@ jobs:
         run: node dist/index.js
         env:
           php-version: ${{ matrix.php-versions }}
-          extensions: mbstring, xdebug, pcov #optional
+          extensions: xml, opcache, xdebug, pcov #optional
           ini-values: post_max_size=256M, short_open_tag=On, date.timezone=Asia/Kolkata #optional
 
       - name: Testing PHP version
@@ -72,7 +72,7 @@ jobs:
       - name: Testing Extensions
         run: |
           php -m
-          php -r "if(! extension_loaded('mbstring')) {throw new Exception('mbstring not found');}"
+          php -r "if(! extension_loaded('xml')) {throw new Exception('xml not found');}"
           php -r "if(! extension_loaded('Xdebug')) {throw new Exception('Xdebug not found');}"
           php -r "if(phpversion()>=7.1 && ! extension_loaded('pcov')) {throw new Exception('PCOV not found');}"
       - name: Testing ini values
diff --git a/src/scripts/darwin.sh b/src/scripts/darwin.sh
index c918c8cb..f5f6934f 100644
--- a/src/scripts/darwin.sh
+++ b/src/scripts/darwin.sh
@@ -17,8 +17,22 @@ add_log() {
   fi
 }
 
+get_extension_regex() {
+  extension=$1
+  case $extension in
+    "opcache")
+      echo "^Zend\sOPcache$"
+      ;;
+    "xdebug")
+      echo "^Xdebug$"
+      ;;
+    *)
+      echo ^"$extension"$
+      ;;
+  esac
+}
+
 step_log "Setup PHP and Composer"
-version=$1
 export HOMEBREW_NO_INSTALL_CLEANUP=TRUE
 brew tap shivammathur/homebrew-php >/dev/null 2>&1
 brew install shivammathur/php/php@"$1" composer >/dev/null 2>&1
@@ -37,11 +51,12 @@ add_extension() {
   extension=$1
   install_command=$2
   prefix=$3
-  if ! php -m | grep -i -q ^"$extension"$ && [ -e "$ext_dir/$extension.so" ]; then
-    echo "$prefix=$extension" >>"$ini_file" && add_log $tick "$extension" "Enabled"
-  elif php -m | grep -i -q ^"$extension"$; then
+  extension_regex="$(get_extension_regex "$extension")"
+  if ! php -m | grep -i -q "$extension_regex" && [ -e "$ext_dir/$extension.so" ]; then
+    echo "$prefix=$extension" >>"$ini_file" && add_log "$tick" "$extension" "Enabled"
+  elif php -m | grep -i -q "$extension_regex"; then
     add_log "$tick" "$extension" "Enabled"
-  elif ! php -m | grep -i -q ^"$extension"$; then
+  elif ! php -m | grep -i -q "$extension_regex"; then
     exists=$(curl -sL https://pecl.php.net/json.php?package="$extension" -w "%{http_code}" -o /dev/null)
     if [ "$exists" = "200" ]; then
       (
@@ -49,7 +64,7 @@ add_extension() {
         add_log "$tick" "$extension" "Installed and enabled"
       ) || add_log "$cross" "$extension" "Could not install $extension on PHP $semver"
     else
-      if ! php -m | grep -i -q ^"$extension"$; then
+      if ! php -m | grep -i -q "$extension_regex"; then
         add_log "$cross" "$extension" "Could not find $extension for PHP $semver on PECL"
       fi
     fi
diff --git a/src/scripts/linux.sh b/src/scripts/linux.sh
index 499a2958..0e89a247 100644
--- a/src/scripts/linux.sh
+++ b/src/scripts/linux.sh
@@ -16,6 +16,22 @@ add_log() {
     printf "\033[31;1m%s \033[0m\033[34;1m%s \033[0m\033[90;1m%s\033[0m\n" "$mark" "$subject" "$message"
   fi
 }
+
+get_extension_regex() {
+  extension=$1
+  case $extension in
+    "opcache")
+      echo "^Zend\sOPcache$"
+      ;;
+    "xdebug")
+      echo "^Xdebug$"
+      ;;
+    *)
+      echo ^"$extension"$
+      ;;
+  esac
+}
+
 existing_version=$(php-config --version | cut -c 1-3)
 semver=$(php -v | head -n 1 | cut -f 2 -d ' ' | cut -f 1 -d '-')
 step_log "Setup PHP and Composer"
@@ -96,11 +112,12 @@ add_extension()
   extension=$1
   install_command=$2
   prefix=$3
-  if ! php -m | grep -i -q ^"$extension"$ && [ -e "$ext_dir/$extension.so" ]; then
+  extension_regex="$(get_extension_regex "$extension")"
+  if ! php -m | grep -i -q "$extension_regex" && [ -e "$ext_dir/$extension.so" ]; then
     echo "$prefix=$extension" >> "$ini_file" && add_log "$tick" "$extension" "Enabled"
-  elif php -m | grep -i -q ^"$extension"$; then
+  elif php -m | grep -i -q "$extension_regex"; then
     add_log "$tick" "$extension" "Enabled"
-  elif ! php -m | grep -i -q ^"$extension"$; then
+  elif ! php -m | grep -i -q "$extension_regex"; then
       (
         eval "$install_command" && \
         add_log "$tick" "$extension" "Installed and enabled"