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<?php $ar = ['filename.en_us.srt', 'filename.en_uk.srt', 'file.name.en_uk.srt']; foreach($ar as $a) { preg_match('/\.([^\.]*)\.srt$/', $a, $matches); echo $matches[1]."\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
en_us en_uk en_uk

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