3v4l.org

run code in 300+ PHP versions simultaneously
<?php $urlKey = 'dfbhkjdsfhsdkfkj-565576-786.html'; $oldUrlKey = null; if (preg_match('/^.*-[0-9]+(-[0-9]+)\.html$/', $urlKey, $matches)) { $oldUrlKey = str_replace($matches[1], '', $urlKey); } echo $urlKey; echo $oldUrlKey;
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
dfbhkjdsfhsdkfkj-565576-786.htmldfbhkjdsfhsdkfkj-565576.html

preferences:
229.18 ms | 405 KiB | 456 Q