diff --git a/dist/index.js b/dist/index.js
index d76268c8..7ce31cb5 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -354,20 +354,13 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
 Object.defineProperty(exports, "__esModule", { value: true });
-const os = __importStar(__webpack_require__(87));
-const events = __importStar(__webpack_require__(614));
-const child = __importStar(__webpack_require__(129));
-const path = __importStar(__webpack_require__(622));
-const io = __importStar(__webpack_require__(1));
-const ioUtil = __importStar(__webpack_require__(672));
+const os = __webpack_require__(87);
+const events = __webpack_require__(614);
+const child = __webpack_require__(129);
+const path = __webpack_require__(622);
+const io = __webpack_require__(1);
+const ioUtil = __webpack_require__(672);
 /* eslint-disable @typescript-eslint/unbound-method */
 const IS_WINDOWS = process.platform === 'win32';
 /*
@@ -811,12 +804,6 @@ class ToolRunner extends events.EventEmitter {
                         resolve(exitCode);
                     }
                 });
-                if (this.options.input) {
-                    if (!cp.stdin) {
-                        throw new Error('child process missing stdin');
-                    }
-                    cp.stdin.end(this.options.input);
-                }
             });
         });
     }
@@ -2883,15 +2870,8 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
 Object.defineProperty(exports, "__esModule", { value: true });
-const tr = __importStar(__webpack_require__(9));
+const tr = __webpack_require__(9);
 /**
  * Exec a command.
  * Output will be streamed to the live console.
diff --git a/src/scripts/darwin.sh b/src/scripts/darwin.sh
index e701f5e9..137da343 100644
--- a/src/scripts/darwin.sh
+++ b/src/scripts/darwin.sh
@@ -178,15 +178,14 @@ update_formulae() {
 # Function to setup PHP >=5.6
 setup_php() {
   action=$1
-  if [ "$version" = "8.0" ]; then
-    update_formulae
-  fi
   export HOMEBREW_NO_INSTALL_CLEANUP=TRUE
   brew tap shivammathur/homebrew-php
-  if [ "$version" = "5.6" ] || [ "$version" = "7.0" ]; then
-    brew install https://raw.githubusercontent.com/shivammathur/homebrew-php/master/Formula/icu4c.rb --force
+  if brew list php@"$version" 2>/dev/null | grep -q "Error" && [ "$action" != "upgrade" ]; then
+    brew unlink php@"$version"
+  else
+    if [ "$version" = "8.0" ]; then update_formulae; fi
+    brew "$action" shivammathur/php/php@"$version"
   fi
-  brew "$action" shivammathur/php/php@"$version"
   brew link --force --overwrite php@"$version"
 }
 
@@ -198,7 +197,22 @@ nodot_version=${1/./}
 old_versions="5.[3-5]"
 tool_path_dir="/usr/local/bin"
 existing_version=$(php-config --version 2>/dev/null | cut -c 1-3)
-[[ -z "${update}" ]] && update='false' || update="${update}"
+[[ -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}"
+
+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
+  fi
+  if [[ $(command -v brew) == "" ]]; then
+      step_log "Setup Brew"
+      curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh | bash -s >/dev/null 2>&1
+      add_log "$tick" "Brew" "Installed Homebrew"
+  fi
+fi
 
 # Setup PHP
 step_log "Setup PHP"