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I've read the WP codex and several tutorials about data validation and sanitation in WordPress. Now I've got this simple example code:

$title = "<script>alert('Test')</script>"; echo esc_html($title);

According to the tutorials and the codex this should be the output: &lt;script&gt;alert&#40;&#39;test&#39;&#41;&lt;&#47;script&gt;

But on my website I get this: <script>alert('Test')</script>.

Am I doing something wrong? Because the XSS isn't being executed, so the esc_html filter is working correctly.

Thanks in advance!

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Your code is working correctly. If you look at the source code of the page, you will see:

&lt;script&gt;alert(&#039;Test&#039;)&lt;/script&gt;

When the above text gets processed for display by your browser, it then becomes

<script>alert('Test')</script>

which is what you want to be displayed.

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  • Thanks for your answer! You're correct, in the source it looks correct. Thanks! – Jason Lucas May 30 '13 at 10:51

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