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<?php $year = "2008"; $range = "2008-2013"; $regex = "/^(\d{0,4}+(?:-\d{0,4}+)?)$/is"; $matches = array(array()); preg_match($regex, $range, $matches[0], 1); preg_match($regex, $year, $matches[1], 1); print_r($matches); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ValueError: preg_match(): Argument #4 ($flags) must be a PREG_* constant in /in/61bYa:9 Stack trace: #0 /in/61bYa(9): preg_match('/^(\\d{0,4}+(?:-...', '2008-2013', Array, 1) #1 {main} thrown in /in/61bYa on line 9
Process exited with code 255.

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