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@ 2017-07-08T14:50:50Z

<?php
    function decrypt($a)
    {
        $strings = strtolower(strrev($a));
        $MyKey = hexdec(substr($strings, 0, 4)) ^ hexdec('BFF') ^ hexdec('D77D');
        $Temps = substr($strings, 4);
        unset($tmp);
        //echo $n;
        for ($i = 0; $i < strlen($Temps); $i+=6)
        {
            ++$n;
	        $cal = ($n * $n) ^ hexdec("3E");
            //echo chr(octdec(hexdec(substr($Temps, $i, 6))) ^ ($MyKey ^ hexdec("AFE43") ^ hexdec("399AA3") ^ $cal)) . "\n";
            $tmp = $tmp . chr(octdec(hexdec(substr($Temps, $i, 6))) ^ ($MyKey ^ hexdec('AFE43') ^ hexdec('399AA3') ^ $cal));
        }
        return $tmp;
    
    }
    
    echo decrypt('pass'); 
    
    define('__FLAG__', 'flag{hidden_flag}');
    if(decrypt('pass') == 'pwning_the_phpreverse!')
    {
    	echo __FLAG__;
    }
?>

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Invalid characters passed for attempted conversion, these have been ignored in /in/8U0ML on line 5 Warning: Undefined variable $tmp in /in/8U0ML on line 16 Deprecated: Invalid characters passed for attempted conversion, these have been ignored in /in/8U0ML on line 5 Warning: Undefined variable $tmp in /in/8U0ML on line 16

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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