3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = [ 'attachment;filename="unnamed.jpg";filename*=UTF-8\'\'unnamed.jpg\'', 'attachment;filename="unnamed.jpg"', 'attachment;filename=unnamed.jpg;filename*=UTF-8\'\'unnamed.jpg\'', 'attachment;filename=unnamed.jpg' ]; foreach ($strings as $string) { preg_match('/^.*?filename="?\K[^";]+/m', $string, $matches); print_r($matches); }

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35.05 ms | 405 KiB | 5 Q