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@ 2019-10-10T17:08:10Z

<?php

var_dump(preg_match('//u', "\x21\x92"));
var_dump(preg_match('//u', "\x21"));
var_dump(preg_match('//u', "\x92"));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive previewkey bindings

27.81 ms | 405 KiB | 5 Q