PHP Switch version on MacOS

php_switch.sh

#!/bin/bash

# Check if Homebrew is installed
if ! command -v brew &>/dev/null; then
    echo "Homebrew is not installed. Please install Homebrew first."
    exit 1
fi

# Check if PHP 7.1 and PHP 8 are installed via Homebrew
if ! brew ls --versions php@7.1 &>/dev/null; then
    echo "PHP 7.1 is not installed via Homebrew. Please install it first."
    exit 1
fi

if ! brew ls --versions php &>/dev/null; then
    echo "PHP 8 is not installed via Homebrew. Please install it first."
    exit 1
fi

# Check if a PHP version argument is provided
if [ -z "$1" ]; then
    echo "Usage: $0 <php-version>"
    echo "Available PHP versions: 7.1, 8"
    exit 1
fi

# Determine the selected PHP version
selected_version="$1"

case "$selected_version" in
    7.1)
        echo "Switching to PHP 7.1..."
        brew unlink php
        brew link --force --overwrite shivammathur/php/php@7.1
        ;;
    8)
        echo "Switching to PHP 8..."
        brew unlink php@7.1
        brew link --force --overwrite php
        ;;
    *)
        echo "Invalid PHP version. Available options: 7.1, 8"
        exit 1
        ;;
esac

# Verify the switch
if [ $? -eq 0 ]; then
    echo "PHP version switched to $selected_version."
else
    echo "Failed to switch PHP version to $selected_version."
fi