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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 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
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.
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: preg_match(): Invalid flags specified in /in/61bYa on line 9 Warning: preg_match(): Invalid flags specified in /in/61bYa on line 10 Array ( [0] => Array ( ) [1] => Array ( ) )
Output for 4.3.0 - 4.3.10, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: Wrong value for parameter 4 in call to preg_match() in /in/61bYa on line 9 Warning: Wrong value for parameter 4 in call to preg_match() in /in/61bYa on line 10 Array ( [0] => Array ( ) [1] => )
Output for 4.3.11, 4.4.0 - 4.4.9
Warning: preg_match(): Wrong value for parameter 4 in call to preg_match() in /in/61bYa on line 9 Warning: preg_match(): Wrong value for parameter 4 in call to preg_match() in /in/61bYa on line 10 Array ( [0] => Array ( ) [1] => )
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304.05 ms | 402 KiB | 398 Q