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@ 2018-03-27T10:27:13Z

<?php

class Q extends SplQueue
{
}

$q = new Q();

$q->enqueue('first');
$q->enqueue('second');
$q->enqueue('third');
echo $q->bottom();
var_dump($q);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive preview

27.86 ms | 402 KiB | 5 Q