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@ 2014-07-25T12:58:16Z

<?php

function a($pattern, $subject, &$matches = null)
{
    return preg_match($pattern, $subject, $matches);
}

$r = a('~[a|b]+~', 'aaaa', $matches);

var_dump($r, $matches);

$r = a('~[a|b]+~', 'aaaa');

var_dump($r);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
preg_match: documentation ( source)

preferences:dark modelive preview

59 ms | 402 KiB | 5 Q