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run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = "(小黄蜂250 OR 小黄峰 OR 幻影150 ) "; var_dump($str = preg_replace('/(\(\s|\s\))/', trim('$1'), $str));
Output for 4.3.0 - 7.2.0
string(43) "(小黄蜂250 OR 小黄峰 OR 幻影150 ) "