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@ 2014-07-17T01:38:16Z

<?php

    $foo = 'b';
    $a = [ 'a', $foo, 'c' ];
    foreach(z($a) as &$x) {
        $x .= 'q';
    }
    print_r($a);

Output
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print_r: documentation ( source)

preferences:dark modelive preview

42.81 ms | 402 KiB | 5 Q