disallowed characters using mark, equal, and, semicolon

Hi I would like to access this link at the end of the link but An Error Was Encountered The URI you submitted has disallowed characters.

I need this to get a lightbox using iframe working

?iframe=true&width=1000&height=500

I tried this $config['permitted_uri_chars'] = 'a-z 0-9~%.:_\?=-';

need to add the que开发者_Python百科stion mark, equal, and, semicolon

any help?

In the actual URL you should be using & to separate arguments (and & when displaying them in XHTML). However, the ; should not be invalid because it is a legal GET param separator as well.

The regex you have in your question should permit semi colons if you change it to...

$config['permitted_uri_chars'] = 'a-z 0-9~%.:_\?=-;';

That is supposing the above string is substituted into a character range, e.g. [...].

Why do you use & in the URL? The & by itself is URL-safe. i.e.

?iframe=true&width=1000&height=500

Assuming a WYSIWYG editor or something is spitting out the & as &, you should try and prevent it from doing this.

After all, you don't want the url to be interpreted as iframe=true and amp;width=1000 etc.