3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $data = "\xe2\x99\xa5"; mb_convert_encoding($data,'8bit'); $data = mb_ereg_replace("heart","\u2665\u2665",$data); var_dump($data); echo $data;
Output for 4.3.4 - 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 - 5.6.28, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(3) "♥" ♥
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_ereg_replace() in /in/YI3l9 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_ereg_replace() in /in/YI3l9 on line 6
preferences:
302.48 ms | 401 KiB | 382 Q