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<?php $string = "این متن فارسی است and this is !!! in English این خط بعدی است و this is going to be continued..."; $newStr = preg_replace_callback('/\w.*(?=\w|\b)/', function (array $m) { return implode(" ", array_reverse(explode(" ", $m[0]))); }, $string); echo $newStr;
Output for git.master, git.master_jit, rfc.property-hooks
این متن فارسی است English in !!! is this and این خط بعدی است و continued be to going is this...

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