is_cli.php

is_cli.php

<?php 
function is_cli() {
    if ( defined('STDIN') ) return true;
    if ( php_sapi_name() === 'cli' ) return true;
    if ( array_key_exists('SHELL', $_ENV) ) return true;
    if ( empty($_SERVER['REMOTE_ADDR']) and !isset($_SERVER['HTTP_USER_AGENT']) and count($_SERVER['argv']) > 0) return true;
    if ( !array_key_exists('REQUEST_METHOD', $_SERVER) ) return true;
    return false;
}