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@ 2014-07-11T10:05:36Z

<?php
$data = array();
for ($i = 0; $i < 500; $i++) {
    $data[md5(uniqid('', true))] = $data;
}

Output
Performance
VLD
References
Branches

uniqid: documentation ( source)
md5: documentation ( source)

preferences:dark modelive preview

32.69 ms | 402 KiB | 5 Q