3v4l.org

run code in 200+ php & hhvm versions
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<?php mb_internal_encoding("UTF-8"); echo mb_strtoupper("ɱ");
Output for 5.3.4 - 5.6.30, 7.0.0 - 7.2.6
Output for 4.3.0 - 5.3.3, hhvm-3.10.1 - 3.22.0
ɱ