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run code in 150+ php & hhvm versions
Bugs & Features
<?php $value = 0.12; $regexp = '/(-)?[0-9]+(\.[0-9][0-9]?)?//g'; preg_match($regexp, $value, $matches); var_dump($matches);
Output for 5.2.0 - 7.1.0
Warning: preg_match(): Unknown modifier '/' in /in/uUK0j on line 5 NULL
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Unknown modifier '/' in /in/uUK0j on line 5 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '/' in /in/uUK0j on line 5 array(0) { }