3v4l.org

run code in 300+ PHP versions simultaneously
<?php $value = 'htghfhgtp://static.theiconic.com.au/cms/site_updates/Week 42/MSS_1_150x245px.jpghttp://,http://,http://,http://'; $pattern = '/http:\/\//i'; preg_match_all($pattern, $value, $matches, PREG_PATTERN_ORDER); var_dump($matches);
Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
array(1) { [0]=> array(4) { [0]=> string(7) "http://" [1]=> string(7) "http://" [2]=> string(7) "http://" [3]=> string(7) "http://" } }

preferences:
148.81 ms | 404 KiB | 218 Q