naive homebrew php-switch

.zshrc

# Disables any PHP by unlinking all PHP versions and stopping all PHP services
# 
# Enables the PHP of the provided version.
# If no version is provided, no PHP will be enabled, effectively disabling homebrew PHP.
# 
# Usage: php-switch 70
php-switch() {
    brew list | grep -e ^php..$ | xargs brew unlink
    brew services list | grep started | cut -d" " -f1 | grep -e ^php | xargs brew services stop

    if [[ $# -eq 1 ]]
    then
        brew link php$1
        brew services start php$1
    fi
}