<\/script>')
Clever Geek Handbook

How to encode url as javascript string in PHP generated HTML?

Given this PHP code:

<a onclick="javascript:window.location.href='<?php echo $url;?>'"

What if there is '

in $ url?

I tried to use json_encode($url)

but it can't handle it.

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1 answer


json_encode

will work. You just need to use it correctly:

<a onclick="javascript:window.location.href=<?php echo htmlspecialchars(json_encode($url)); ?>">


This will work as it json_encode

already returns a quoted JavaScript expression. And htmlspecialchars

it is necessary to avoid possible HTML metacharacters.

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