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@ 2014-10-16T17:48:23Z

<?php

$a = array();
$arrayKey = '[0][1]';

$a[0][1] = "two levels deep";

$vars = function($str) use ($vars)
{
    $c = function($v, $w) {return $w ? $v[$w] : $v;};
    return array_reduce(preg_split('~\[\'|\'\]~', $str), $c, $vars);
};

echo $vars('[0][1]');

Output
Performance
VLD
References
Branches

array_reduce: documentation ( source)
preg_split: documentation ( source)

preferences:dark modelive preview

40.8 ms | 402 KiB | 5 Q