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<?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 for git.master, git.master_jit
Warning: Undefined variable $vars in /in/3obQh on line 8 Warning: Trying to access array offset on value of type null in /in/3obQh on line 10
Output for rfc.property-hooks
Warning: Undefined variable $vars in /in/3obQh on line 8 Warning: Trying to access array offset on null in /in/3obQh on line 10

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