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run code in 200+ php & hhvm versions
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<?php $str = "testing À, Ç, É, Ê "; echo htmlentities($str);
Output for 5.4.0 - 7.1.7
testing &Agrave;, &Ccedil;, &Eacute;, &Ecirc;
Output for 4.3.0 - 5.3.29
testing &Atilde;�, &Atilde;�, &Atilde;�, &Atilde;�