sphp

#!/bin/bash
# Creator: Phil Cook
# Email: phil@phil-cook.com
# Twitter: @p_cook
if ! command -v brew &>/dev/null; then
    echo "Error: Homebrew is required. Install it from https://brew.sh"
    exit 1
fi

brew_prefix_raw=$(brew --prefix)
brew_prefix=$(echo "$brew_prefix_raw" | sed 's#/#\\\/#g')

# Detect installed PHP versions from brew (no hardcoded list to maintain)
brew_installed=$(brew list --formula 2>/dev/null)
php_installed_array=($(echo "$brew_installed" | grep '^php@' | sort -t@ -k2 -V))
# The latest PHP is installed as "php" not "php@X.Y" — detect its version
php_main_ver=""
if echo "$brew_installed" | grep -q '^php$'; then
    php_main_ver=$(basename "$(readlink "$brew_prefix_raw/opt/php")" | cut -d. -f1,2)
    php_installed_array+=("php")
fi
# Map user-requested version to the correct brew formula name
if [[ "$1" == "$php_main_ver" ]]; then
    php_version="php"
else
    php_version="php@$1"
fi
php_opt_path="$brew_prefix\/opt\/"

php5_module="php5_module"
apache_php5_lib_path="\/lib\/httpd\/modules\/libphp5.so"
php7_module="php7_module"
apache_php7_lib_path="\/lib\/httpd\/modules\/libphp7.so"
php8_module="php_module"
apache_php8_lib_path="\/lib\/httpd\/modules\/libphp.so"
native_osx_php_apache_module="LoadModule php5_module libexec\/apache2\/libphp5.so"

php_module="$php5_module"
apache_php_lib_path="$apache_php5_lib_path"

# Has the user submitted a version required
if [[ -z "$1" ]]
then
    echo "usage: sphp version [-s|-s=*] [-c=*]"; echo;
    _versions=""
    for _f in "${php_installed_array[@]}"; do
        [[ "$_f" == "php" ]] && _versions+="$php_main_ver " || _versions+="${_f#php@} "
    done
    echo "    version    one of: $_versions";
    echo "    -s         skip change of mod_php on apache";
    echo "    -s=*         skip change of mod_php on apache or valet restart i.e (apache|valet,apache|valet)";
    echo "    -c=*         switch a specific config (apache|valet,apache|valet"; echo;
    exit
fi

# Validate version format
if [[ ! "$1" =~ ^[0-9]+\.[0-9]+$ ]]; then
    echo "Error: Invalid version format '$1'. Expected: X.Y (e.g., 8.3)"
    exit 1
fi

if [[ "$php_version" == "php" ]]; then
    php_version_num=$(echo "$php_main_ver" | sed 's/\.//')
else
    php_version_num=$(echo "$php_version" | sed 's/^php@//' | sed 's/\.//')
fi
if [ "$php_version_num" -ge 80 ]; then
    php_module="$php8_module"
    apache_php_lib_path="$apache_php8_lib_path"
elif [ "$php_version_num" -ge 70 ]; then
    php_module="$php7_module"
    apache_php_lib_path="$apache_php7_lib_path"
fi

apache_change=1
apache_conf_path="$brew_prefix_raw/etc/httpd/httpd.conf"
apache_php_mod_path="$php_opt_path$php_version$apache_php_lib_path"

valet_restart=0
# Check if valet is already install
hash valet 2>/dev/null && valet_installed=1 || valet_installed=0

POSITIONAL=()

# Check for skip & change flag
while [[ $# -gt 0 ]]; do
    key="$1"
    case "$key" in
        # This is a flag type option. Will catch either -s or --skip
        -s|-s=*|--skip=*)
        if  [[  "${1#*=}" == "-s" || "${1#*=}" == *"apache"* ]]; then
            apache_change=0
        elif [ "${1#*=}" == "valet" ]; then
            valet_restart=0
        fi
        ;;
        # This is a flag type option. Will catch either -c or --change
        -c=*|--change=*)
             [[ "$1" == *"apache"* ]] && apache_change=1 || apache_change=0
             [[ "$1" == *"valet"* ]] && valet_restart=1 || valet_restart=0
        ;;
        *)
        POSITIONAL+=("$1") # save it in an array for later
        ;;
    esac
    # Shift after checking all the cases to get the next option
    shift
done

# Check that the requested version is installed
if [[ " ${php_installed_array[*]} " == *" $php_version "* ]]
then

        # Stop valet service
        if [[ ($valet_installed -eq 1) && ($valet_restart -eq 1) ]]; then
           echo "Stop Valet service";
           valet stop;
        fi

        # Detect current PHP for rollback on failure/interruption
        original_php=""
        if command -v php &>/dev/null; then
            current_ver=$(php -r 'echo PHP_MAJOR_VERSION . "." . PHP_MINOR_VERSION;' 2>/dev/null)
            if [[ -n "$current_ver" ]]; then
                if [[ "$current_ver" == "$php_main_ver" ]]; then
                    original_php="php"
                else
                    original_php="php@$current_ver"
                fi
            fi
        fi

        rollback_php() {
            if [[ -n "$original_php" ]]; then
                echo ""
                echo "Interrupted — re-linking $original_php"
                brew link --force "$original_php" &>/dev/null
            fi
        }
        trap rollback_php INT TERM

        # Switch Shell
        echo "Switching to $php_version"
        echo "Switching your shell"
        for i in "${php_installed_array[@]}"
        do
            brew unlink "$i"
        done
        if ! brew link --force "$php_version"; then
            echo "Error: Failed to link $php_version"
            rollback_php
            exit 1
        fi

        # Switch apache
        if [[ $apache_change -eq 1 ]]; then
            echo "Switching your apache conf"

            for j in "${php_installed_array[@]}"
            do
                loop_php_module="$php5_module"
                loop_apache_php_lib_path="$apache_php5_lib_path"
                if [[ "$j" == "php" ]]; then
                    loop_ver_num=$(echo "$php_main_ver" | sed 's/\.//')
                else
                    loop_ver_num=$(echo "$j" | sed 's/^php@//' | sed 's/\.//')
                fi
                if [ "$loop_ver_num" -ge 80 ]; then
                    loop_php_module="$php8_module"
                    loop_apache_php_lib_path="$apache_php8_lib_path"
                elif [ "$loop_ver_num" -ge 70 ]; then
                    loop_php_module="$php7_module"
                    loop_apache_php_lib_path="$apache_php7_lib_path"
                fi
                apache_module_string="LoadModule $loop_php_module $php_opt_path$j$loop_apache_php_lib_path"
                comment_apache_module_string="#$apache_module_string"

                # If apache module string within apache conf
                if grep -q "$apache_module_string" "$apache_conf_path"; then
                    # If apache module string not commented out already
                    if ! grep -q "$comment_apache_module_string" "$apache_conf_path"; then
                        sed -i.bak "s/$apache_module_string/$comment_apache_module_string/g" "$apache_conf_path"
                    fi
                # Else the string for the php module is not in the apache config then add it
                else
                    sed -i.bak "/$native_osx_php_apache_module/a\\
$comment_apache_module_string\\
" "$apache_conf_path"
                fi
            done
            sed -i.bak "s/\#LoadModule $php_module $apache_php_mod_path/LoadModule $php_module $apache_php_mod_path/g" "$apache_conf_path"
            echo "Restarting apache"
            brew services restart httpd
        fi


        # Switch valet
        if [[ $valet_restart -eq 1 ]]; then
            if [[ $valet_installed -eq 1 ]]; then
                valet restart
             else
               echo "valet doesn't installed in your system, will skip restarting valet service";
            fi
        fi

        echo ""
        php -v
        echo ""

        trap - INT TERM
        echo "All done!"
else
    echo "Sorry, but $php_version is not installed via brew. Install by running: brew install $php_version"
fi