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); $a5 = 0; for($a5=0;$a5<strlen($a3);$a5+=6){ $a6 = ++$a6; $mul=$a6 * $a6; $a7=$mul ^ hexdec('6E'); $ans = $ans . chr(octdec(hexdec(substr($a3,$a5,6))) ^ hexdec('AFE43') ^ hexdec('399AA3') ^ $a7 ^ $a2); } return $ans; } echo decrypt('299BFD579BFD8B9BFDE9ABFD2EABFD84ABFD28ABFD07BBFDB9BBFDE1BBFD74BBFD97CBFDA4CBFD45CBFD36CBFDB0CBFD8EBBFD00CBFD0FBBFD41CBFDCFBBFDAFBBFD5DDD'); define('__FLAG__', 'flag{hidden_flag}'); if(decrypt("DEFBFD2EFBFDBCFBFD58FBFD56FBFD31FBFDDFEBFD3BEBFD48EBFD16EBFD83EBFD2DDBFDDFDBFDBCDBFDCBDBFD87DBFDB9DBFDB5DBFD76DBFDF6DBFDF5DBFDD5DBFD82ED") == 'pwning_the_phpreverse!') { echo __FLAG__; } ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined variable $a6 in /in/bJZVX on line 10 Warning: Undefined variable $ans in /in/bJZVX on line 15 pwning_the_phpreverse! Warning: Undefined variable $a6 in /in/bJZVX on line 10 Warning: Undefined variable $ans in /in/bJZVX on line 15
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined variable $a6 in /in/bJZVX on line 10 Warning: Undefined variable $ans in /in/bJZVX on line 15 pwning_the_phpreverse! Warning: Undefined variable $a6 in /in/bJZVX on line 10 Warning: Undefined variable $ans in /in/bJZVX 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 variable: a6 in /in/bJZVX on line 10 Notice: Undefined variable: ans in /in/bJZVX on line 15 pwning_the_phpreverse! Notice: Undefined variable: a6 in /in/bJZVX on line 10 Notice: Undefined variable: ans in /in/bJZVX on line 15
Output for 7.3.32 - 7.3.33, 7.4.26
pwning_the_phpreverse!
preferences:
153.07 ms | 401 KiB | 203 Q