Documentation for the "Good" URL escaping is still not good

[weierophinney]

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The example used on https://docs.zendframework.com/zend-escaper/escaping-url/ is not only building a URL. It is also outputting this URL in an HTML context. So this is a case of nested contexts:

• the name must be escaped as URL component (good)
• the whole URL must be escaped as HTML attribute value (not good currently)

This is kind of unfortunate to show this as a good usage of escaping when a previous chapter was precisely warning about nested contexts.

The example should either be improved to apply the necessary HTML escaping, or be replaced by another example using the URL in a non-HTML context.

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Originally posted by @stof at zendframework/zend-escaper#31