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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); }
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => unnamed.jpg ) Array ( [0] => unnamed.jpg ) Array ( [0] => unnamed.jpg ) Array ( [0] => unnamed.jpg )

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