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run code in 200+ php & hhvm versions
Bugs & Features
<?php $in = 'hell<o'; $out = htmlentities($in, ENT_XML1 ); echo $out; ?>
Output for 5.4.0 - 7.2.0
hell&lt;o
Output for 4.3.0 - 5.3.29
Notice: Use of undefined constant ENT_XML1 - assumed 'ENT_XML1' in /in/q8CAi on line 3 Warning: htmlentities() expects parameter 2 to be long, string given in /in/q8CAi on line 3