php - How do I HTML Encode all the output in a web application? -

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i want prevent xss attacks in web application. found html encoding output can prevent xss attacks. problem how html encode every single output in application? there way automate this?

i appreciate answers jsp, asp.net , php.

you don't want encode html, want html-encode user input you're outputting.

for php: htmlentities , htmlspecialchars


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