3v4l.org

run code in 300+ PHP versions simultaneously
<?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 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
en_us en_uk en_uk
preferences:
219.1 ms | 404 KiB | 292 Q