3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $haystack = '12341234'; $needle = '23'; $replacer = ''; $start = strpos($haystack , $needle); $needleLen = strlen($needle); echo substr_replace ( $haystack , $replacer, $start , $needleLen );
Output for 4.3.0 - 7.1.0
141234