3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $regex = "/(?<![\d.])(\d{1,2}'|\d{0,2}\.\d{1,2}')?(?![\d.](?=\d))/gm"; $string = "thee hight is 15'"; preg_match($regex,$string,$matches); var_dump($matches); ?>
based on HAlht
Output for 5.2.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Unknown modifier 'g' in /in/fOBXG on line 4 NULL
Output for hhvm-3.10.0 - 3.13.2
Warning: Unknown modifier 'g': [/(?<![\d.])(\d{1,2}'|\d{0,2}\.\d{1,2}')?(?![\d.](?=\d))/gm] in /in/fOBXG on line 4 NULL
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Unknown modifier 'g' in /in/fOBXG on line 4 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier 'g' in /in/fOBXG on line 4 array(0) { }