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@ 2015-04-23T07:28:38Z

<?php

$stack =
        [
            [
                'prefix' => [],
                'array' => '$haystack'
            ]
        ];
$x = &$stack;
$stack = [];
print_r($x);

Output
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print_r: documentation ( source)

preferences:dark modelive preview

33.5 ms | 402 KiB | 5 Q