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<?php $re = '/(?:\[[^][]*]|\([^()]*\)|{[^{}]*})(*SKIP)(*F)|[^][(){}]+/m'; $str = 'Hello [123] {45} world (67) Hello There (8) [9] {0}'; $result = preg_replace($re, '', $str); echo $result;
Output for git.master, git.master_jit, rfc.property-hooks
[123]{45}(67)(8)[9]{0}

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