3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding('UTF-8'); $content = 'Berk Kibarer'; if(!mb_check_encoding($content, 'UTF-8') OR !($content === mb_convert_encoding(mb_convert_encoding($content, 'UTF-32', 'UTF-8' ), 'UTF-8', 'UTF-32'))) { $content = mb_convert_encoding($content, 'UTF-8'); } echo mb_convert_case($content, MB_CASE_UPPER, "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 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 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
BERK KIBARER
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.2
<br /> <b>Fatal error</b>: Call to undefined function mb_check_encoding() in <b>/in/jvL8k</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.2
<br /> <b>Fatal error</b>: Call to undefined function: mb_check_encoding() in <b>/in/jvL8k</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Call to undefined function: mb_check_encoding() in <b>/in/jvL8k</b> on line <b>5</b><br />
preferences:
244.08 ms | 401 KiB | 342 Q