Unescaped xml character

Question

My IDE (phpstorm) complains that this contains an Unescaped xml character. This has been bugging me for a while:

<? } if (isset($_GET[id])) { ?>
    document.getElementById("facebook_likebutton").innerHTML = '<';
<? } ?>

it marks the '<' as the part where its an error.

see this image:

enter image description here

phil294 · Accepted Answer

Change

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

to

<!DOCTYPE html>

and the error will be gone.

source

Sam · Answer

Change the inspection settings as follow:

go to settings Ctrl+Alt+S
go to Editor>Inspections>HTML
uncheck Malformed content of "script" tag , or keep it checked and change the Severity (Red box) from Error to Warning or Weak Warning.

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