how exec php code example

Example 1: exec output php

$output = exec('ls');

Example 2: php exec

<?php
$connect = ftp_connect('111.111.111');  //connect to server

$login = ftp_login($connect, 'ftp_username', 'ftp_password'); 

if($login) 
{ 
    if(ftp_put($connect, '/home/user/john/tes.txt','tes.txt', FTP_BINARY)) 
    { 
        echo "Success";
    } 
} 

ftp_close($connect); 
?>