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@ 2019-11-20T07:15:41Z

<?php

var_dump(preg_match('/^|\d{1,2}$/', "7"));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive previewkey bindings

89.27 ms | 1656 KiB | 5 Q