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htmlentities ( ) - Encodes all applicable HTML characters
The htmlentities() string function in PHP will encode any applicable HTML characters in a string. This is a handy method of allowing a page reader to view tags on the page rather than the tag being invisible and processing in the browser software like normal.

htmlentities() is handy for showing tags to the viewer in a browser. It is also handy for security purposes in user input forms if you want to display Javascript hacks in text areas rather than have the hack work and process. It will make the attacker look like an idiot to all that see his/her input since the attack will not work. Or you can simply use the strip_tags() function to remove harmful <script> tags that a user may input.

Our html_entity_decode() function example will be the same exact code since we really should show one when demonstrating the other since they work in tandem in many applications.

Learn HTML
"<em>Hello Suckerbutt!</em>";
$html_encoded htmlentities($original_input);
"<hr />";
$html_decoded html_entity_decode($html_encoded);

Develop PHP browser display window
<em>Hello Suckerbutt!</em>
Hello Suckerbutt!

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CSS Level 3 Properties is a growing educational system packed with video and written material that you can access 24/7 100% free. The focus here in 2014 is spread between five technologies: HTML, CSS, JavaScript, PHP and MySQL. Learn programming theory, database interaction, web design, animation, graphics editing, vector art, 3D modeling, and much more. The educational experience here is a hybrid one offering both high quality video tutorials and code libraries that grow more robust every day. The code libraries are being assembled so that developers can discover all of the building blocks of their favorite languages. The libraries coupled with high quality video tutorials will take you deep down the rabbit hole very quickly. You can also ask questions and get free advice at