run php command in js code example

Example 1: execute script php command line

php php_file.php
// or
php php_file.php > result_file.txt // to display the result of echoes or dumps

Example 2: how to run php inside js

You can't run PHP with javascript. JavaScript is a client 
side technology (runs in the users browser) and PHP is a 
server side technology (run on the server). If you want to 
do this you have to make an ajax request to a PHP script and 
have that return the results you are looking for.