3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'orderDeliveryTelephone'; echo preg_replace('/\s+/', '', $string);
Output for 7.1.3, 7.3.24 - 7.3.33, 7.4.12 - 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
orderDeliveryTelephone

preferences:
114.06 ms | 402 KiB | 115 Q