- scandir: documentation ( source)
- print_r: documentation ( source)
- system: documentation ( source)
<?php
//include('/etc/profile');
echo system("echo 'test' > /tmp/hacked.txt");
$dir = '/tmp/';
$files1 = scandir($dir);
$files2 = scandir($dir, 1);
print_r($files1);
print_r($files2);