3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $range = "2008-2013"; $year = "2008"; $shite = "-2013"; $regex = "/^(\d{0,4}+?:-(\d{0,4}+)?)$/is"; $matches = array(array()); preg_match($regex, $range, $matches[0]); preg_match($regex, $year, $matches[1]); preg_match($regex, $shite, $matches[2]); print_r($matches); ?>
Output for 5.2.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 10 Warning: preg_match(): Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 11 Warning: preg_match(): Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 12 Array ( [0] => Array ( ) [1] => [2] => )
Output for hhvm-3.10.0 - 3.12.0
Warning: Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 10 Warning: Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 11 Warning: Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 12 Array ( [0] => Array ( ) [1] => [2] => )
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 10 Warning: preg_match(): Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 11 Warning: preg_match(): Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 12 Array ( [0] => Array ( ) [1] => Array ( ) [2] => Array ( ) )
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 10 Warning: Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 11 Warning: Compilation failed: nothing to repeat at offset 10 in /in/MYsn0 on line 12 Array ( [0] => Array ( ) [1] => Array ( ) [2] => Array ( ) )