- var_dump: documentation ( source)
- readlink: documentation ( source)
- sys_get_temp_dir: documentation ( source)
- touch: documentation ( source)
- unlink: documentation ( source)
- symlink: documentation ( source)
<?php
$tmp = sys_get_temp_dir();
unlink($tmp.'/file');
unlink($tmp.'/link1');
unlink($tmp.'/link2');
touch($tmp.'/file');
symlink($tmp.'/file', $tmp.'/link1');
symlink($tmp.'/link1', $tmp.'/link2');
var_dump(readlink($tmp.'/link2'));