3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_check_encoding("\xf0\x80\x80\xaf", 'UTF-8'); ?>
Output for 4.4.3 - 4.4.9, 5.1.3 - 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 - 5.6.25, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.2
Fatal error: Call to undefined function mb_check_encoding() in /in/lCp19 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.2
Fatal error: Call to undefined function: mb_check_encoding() in /in/lCp19 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_check_encoding() in /in/lCp19 on line 2
preferences:
287.94 ms | 401 KiB | 369 Q