Online PHP editor | output for 5rBu0

@ 2016-01-02T15:59:14Z

<?php

define('__FLAG__','3xZG{dgznclXAwFVCUHPMWFViZBDSsltxKdrvFBVYHSr1}');
function stypr_crypt($_0){$_1 = $_2 = $_3 = array(); $_4 =array('?','(','@', ';', '$','#',  ']',  '&', '*'); $_4 = array_merge($_4,range('a','z'),range('0','9'),range('A','Z')); $_4 = array_merge($_4,array('!', ')', '_', '+', '|', '%', '/', '[', '.', ' ')); for($_5=9,$_6=0;$_6 < $_5;$_6++){ for($_7=0;$_7<$_5;$_7++){$_2[$_6][$_7] = $_4[$_6*$_5+$_7]; $_3[$_6][$_7] = str_rot13($_4[($_5*$_5-1)-($_6*$_5+$_7)]);} } unset($_4); }
 
if(__FLAG__ === stypr_crypt(stypr_crypt(stypr_crypt($_GET['flag']))))
    echo 'Correct!';
else
    echo 'Incorrect..';
    
    
    
    
    
?>

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 array key "flag" in /in/5rBu0 on line 6 Incorrect..
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 array key "flag" in /in/5rBu0 on line 6 Incorrect..
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Notice: Undefined index: flag in /in/5rBu0 on line 6 Incorrect..
Output for 7.3.32 - 7.3.33: Incorrect..

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