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<?php $string ='öl??lö aßßhda äödasdas'; var_dump($without = preg_split('/\s+/', $string)); var_dump($with = preg_split('/\s+/u', $string)); var_dump($with == $without);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> string(8) "öl??lö" [1]=> string(8) "aßßhda" [2]=> string(10) "äödasdas" } array(3) { [0]=> string(8) "öl??lö" [1]=> string(8) "aßßhda" [2]=> string(10) "äödasdas" } bool(true)

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