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<?php var_dump(mb_detect_order(array('ASCII', 'UTF-8', 'ISO-8859-1'))); var_dump(mb_detect_encoding(chr(129).chr(167), mb_detect_order(), false));
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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 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
bool(true) string(10) "ISO-8859-1"
Output for 4.3.0 - 4.3.2
bool(true) Warning: Wrong parameter count for mb_detect_encoding() in /in/MI8pa on line 3 NULL

preferences:
323.63 ms | 401 KiB | 412 Q