magento escape string for JavaScript part 2

This is a follow up on magento escape string for javascript

where I accepted @AlanStorm suggestion to use json_encode to escape string literals.

But I now have a new problem with this solution.

when trying to escape a URL that has /'s in it to be rendered as a string literal for JavaScript json_encode seems to add redundant \'s in front of the /'s.

Any new suggestions here?

solutions 开发者_如何学Cshould take a string variable and return a string that would properly be evaluated to a string literal in JavaScript. (I don't care if its surrounded with single or double quotes - although I prefer single quotes. And it must also support newlines in the string.)

Thanks

some more info: how comes '/');echo json_encode($v); ?> results in {"a":"\/"} ?

Details can be found here http://bugs.php.net/bug.php?id=49366

work around for this issue:

str_replace('\\/', '/', $jsonEncoded);

for your issue you can do something like

$jsonDecoded = str_replace(array("\\/", "/'s"), array("/", "/\'s"), $jsonEncoded);

Hope this helps

When I check the JSON format I see that solidi are allowed to be escaped so json_encode is in fact working correctly.

The bug link posted by satrun77 even says "It's not incorrect to escape slashes."

If you're adamant to do without and (in this case) are certain to be working with a string you can use a hack like this:

echo '["', addslashes($string), '"]';

Obviously that doesn't help for more complicated structures but as luck has it, you are using Magento which is highly modifiable. Copy lib/Zend/Json/Encoder.php to app/core/local/Zend/Json/Encoder.php (which forms an override) and fix it's _encodeString method.