3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "три"; $s_cp = mb_detect_encoding($s, "windows-1251"); echo $s, ' ', strlen($s); echo "\n"; echo $s_cp, ' ', strlen($s_cp);
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
три 6 Windows-1251 12
Output for 4.3.2 - 4.3.3
Warning: mb_detect_encoding(): Illegal argument in /in/U8bQA on line 3 три 6 UTF-8 5
Output for 4.3.0 - 4.3.1
Warning: mb_detect_encoding() [http://www.php.net/function.mb-detect-encoding]: Illegal argument in /in/U8bQA on line 3 три 6 UTF-8 5
preferences:
238.25 ms | 401 KiB | 313 Q