URI段作为函数的参数：传递逗号，+，日期格式为允许的URI段？

Question

Can you pass commas or + symbols or data in date - time format as parameters in URI segment in codeigniter? like calling through ajax a url like : controller/function/argument1/argument2

Now can this argument 1 contain characters like +,(,),comma when called from front end? Seems otherwise.I tried passing an address variable to the function through the URI segment, however the + signs, commas present in the address generate an error. The same happened with date format that is passed from frontend. Is this a restriction or is there a work-around?

Answer 1

If you check the config.php file in your application/config folder you can find the following:

|--------------------------------------------------------------------------
| Allowed URL Characters
|--------------------------------------------------------------------------
|
| This lets you specify with a regular expression which characters are permitted
| within your URLs.  When someone tries to submit a URL with disallowed
| characters they will get a warning message.
|
| As a security measure you are STRONGLY encouraged to restrict URLs to
| as few characters as possible.  By default only these are allowed: a-z 0-9~%.:_-
|
| Leave blank to allow all characters -- but only if you are insane.
|
| DO NOT CHANGE THIS UNLESS YOU FULLY UNDERSTAND THE REPERCUSSIONS!!
|
*/
$config['permitted_uri_chars'] = 'a-z 0-9~%.:_\-';

So, basically, you can change it to accept whatever symbol you want, but I really don't know what type of reason that lets you pass other than the above allowed symbols in your uri.