3v4l.org

run code in 300+ PHP versions simultaneously
<?php function decrypt($a) { $a1 = strtolower(strrev($a)); $a2 = hexdec(substr($a1,0,4)) ^ hexdec('BFF') ^ hexdec('D77D'); $a3 = substr($a1,4); $a5 = 0; unset($$ans); for($a5=0;$a5<strlen($a3);$a5+=6){ $a6 = ++$a5; } $mul=$a6 * $a6; $a7=$mul ^ hexdec('6E'); $ans = $ans . chr(octdec(hexdec(substr($a3,$a5,6))) ^ hexdec('AFE43') ^ hexdec('399AA3') ^ $a7 ^ octdec(hexdec(substr($a3,$a5,6)))); return $ans; } define('__FLAG__', 'flag{hidden_flag}'); if(decrypt($_REQUEST['pass']) == 'pwning_the_phpreverse!') { echo __FLAG__; } ?>
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: Undefined array key "pass" in /in/eu3mP on line 23 Deprecated: strrev(): Passing null to parameter #1 ($string) of type string is deprecated in /in/eu3mP on line 4 Warning: Undefined variable $ans in /in/eu3mP on line 8 Warning: Undefined variable $a6 in /in/eu3mP on line 12 Warning: Undefined variable $a6 in /in/eu3mP on line 12 Warning: Undefined variable $ans in /in/eu3mP on line 15
Output for 8.0.0 - 8.0.30
Warning: Undefined array key "pass" in /in/eu3mP on line 23 Warning: Undefined variable $ans in /in/eu3mP on line 8 Warning: Undefined variable $a6 in /in/eu3mP on line 12 Warning: Undefined variable $a6 in /in/eu3mP on line 12 Warning: Undefined variable $ans in /in/eu3mP on line 15
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined index: pass in /in/eu3mP on line 23 Notice: Undefined variable: ans in /in/eu3mP on line 8 Notice: Undefined variable: a6 in /in/eu3mP on line 12 Notice: Undefined variable: a6 in /in/eu3mP on line 12 Notice: Undefined variable: ans in /in/eu3mP on line 15
Output for 7.3.32 - 7.3.33, 7.4.26
preferences:
170.84 ms | 401 KiB | 217 Q