3v4l.org

run code in 150+ php & hhvm versions
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<?php $url = "%f0%c0%c0%a7"; $ill=urldecode($url); var_dump($ill); $ill=addslashes($ill); echo utf8_decode("$ill"); echo htmlspecialchars ($ill,ENT_QUOTES,"utf-8" );
Output for 5.2.15 - 5.2.17, 5.3.4 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(4) "�" ?
Output for 5.2.12 - 5.2.14, 5.3.2 - 5.3.3
string(4) "�" '
Output for 4.3.2 - 5.2.11, 5.3.0 - 5.3.1
string(4) "�" '&#039;
Output for 4.3.0 - 4.3.1
string(4) "�" '
Process exited with code 139.