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@ 2013-11-14T02:35:05Z

<?php
var_dump(!empty($o) && !preg_match('/(\d)\1{6,}/u', 10000000, $m));
var_dump(preg_match('/(\d)\1{6,}/u', 10000000, $m));
var_dump($m);

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

36.29 ms | 402 KiB | 5 Q