Online PHP editor | output for 2ifZp

@ 2016-01-07T10:08:32Z

<?php

function setKey($sessionKeys, $value)
{
    $sessionKeysArray = explode(':', $sessionKeys);
    $sessionKey = '';
    foreach ($sessionKeysArray as $key){
	    $sessionKey .= "[\'$key\']";
    }
     echo eval("&$_SESSION{$sessionKey} = $value");
    $_SESSION{$sessionKey} = $value;

    var_dump($_SESSION);

    return !empty(self::getKey($sessionKey));
}

setKey('1:2:3', 77);

Output for 7.0.0 - 7.0.2: Fatal error: Cannot use "self" when no class scope is active in /in/2ifZp on line 15
Process exited with code 255.
Output for 5.5.24 - 5.5.31, 5.6.8 - 5.6.17: Notice: Undefined variable: _SESSION in /in/2ifZp on line 10 Parse error: syntax error, unexpected '&' in /in/2ifZp(10) : eval()'d code on line 1 array(1) { ["[\'1\'][\'2\'][\'3\']"]=> int(77) } Fatal error: Cannot access self:: when no class scope is active in /in/2ifZp on line 15
Process exited with code 255.

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