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@ 2016-01-11T16:16:17Z

<?php

$foo['bar']['baz'] = 'foo';
foreach($foo['bar'] ?: [] as &$val) {
    $val = 'FOO';
}

var_dump($foo);

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

55.94 ms | 402 KiB | 5 Q