3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo htmlspecialchars('<', $flags = ENT_COMPAT | ENT_HTML401, $encoding = 'UTF-8');
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
&lt;
Output for 4.3.2 - 5.3.29
Notice: Use of undefined constant ENT_HTML401 - assumed 'ENT_HTML401' in /in/gIE07 on line 3 &lt;
Output for 4.3.0 - 4.3.1
Notice: Use of undefined constant ENT_HTML401 - assumed 'ENT_HTML401' in /in/gIE07 on line 3
Process exited with code 139.