3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = 'Täglich montags bis freitags'; $encoding = mb_detect_encoding($s, array('ISO-8859-1', 'UTF-8'), true); var_dump($encoding);
Output for 4.3.3 - 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, 5.6.7 - 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, 8.3.0 - 8.3.7
string(10) "ISO-8859-1"
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
string(5) "UTF-8"
Output for 4.3.0 - 4.3.2
Warning: Wrong parameter count for mb_detect_encoding() in /in/0H1dK on line 4 NULL
preferences:
216.52 ms | 401 KiB | 330 Q