3v4l.org

run code in 300+ PHP versions simultaneously
<?php $url = 'http://stackoverflow.com/folder1/ask'; $pathinfo = pathinfo($url); $newPrefix = str_replace('folder1', 'folder2', $pathinfo['dirname']); $newUrl = $newPrefix . '/' . $pathinfo['basename']; echo $newUrl;
Output for 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
http://stackoverflow.com/folder2/ask

preferences:
174.06 ms | 408 KiB | 5 Q