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@ 2013-10-24T13:06:04Z

<?php
var_dump(PCRE_DOTTED_VERSION);

$x=preg_match("%[=~]|<[>=]%", "test");

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

46.58 ms | 402 KiB | 5 Q