# php > PHP command line interface. > Homepage: - Parse and execute a php script: `php {{file}}` - Check syntax on (i.e. lint) a PHP script: `php -l {{file}}` - Run PHP interactively: `php -a` - Run PHP code (Notes: Don't use tags; escape double quotes with backslash): `php -r "{{code}}"` - Start a PHP built-in web server in the current directory: `php -S {{host:port}}`