3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str="Please wait for sometime too, the area code is for 18 and phone number is too 5897 for"; $str=preg_replace('#(\d)\s*for#','${1}4',$str); $str=preg_replace('#(\d)\s*too#','${1}2',$str); $str=preg_replace('#for\s*(\d)#','4${1}',$str); $str=preg_replace('#too\s*(\d)#','2${1}',$str); echo $str;
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Please wait for sometime too, the area code is 418 and phone number is 258974
preferences:
153.36 ms | 410 KiB | 5 Q