Php – CodeIgniter: Page not found when passing parameters to a controller

codeigniterPHP

I'm trying to pass parameters to a control in codeigniter, but I'm getting 404 page not found error, I don't get it, I did what the guide says: https://www.codeigniter.com/user_guide/general/controllers.html#passing-uri-segments-to-your-methods

When I remove the params in the index function and just access the controller everything works fine, but I can't pass a value to it…

Here is the code the way I'm trying to send a param: http://mysite/123

<?php
class Main extends Controller {

    function index($username) {

        echo $username;

    }

}
?>

How can I get more info regarding this error from codeigniter?

Thank you.

Best Answer

The URL needs to be http://mysite/Main/index/123.

CodeIgniter URLs are http://<url>/<Controller>/<Method>/<params>.

Related Solutions

Php – CodeIgniter: Page not found when passing parameters to a controller

With that URL, CodeIgniter can't understand if you want to pass 123 to the index method or if you're requesting the 123 method with no parameters. You have to explicitly name the default method if you need to pass it some parameters.

http://mysite/index/123

Php – How to route the URI with parameters to a method in codeigniter

In CI 3.x the (:any) parameter matches only a single URI segment. So for example:

$route['method/(:any)/(:any)'] = 'controller/method/$1/$2';

will match exactly two segments and pass them appropriately. If you want to match 1 or 2 you can do this (in order):

$route['method/(:any)/(:any)'] = 'controller/method/$1/$2';
$route['method/(:any)'] = 'controller/method/$1';

You can pass multiple segments with the (.+) parameter like this:

$route['method/(.+)'] = 'controller/method/$1';

In that case the $1 will contain everything past method/. In general I think its discouraged to use this since you should know what is being passed and handle it appropriately but there are times (.+) comes in handy. For example if you don't know how many parameters are being passed this will allow you to capture all of them. Also remember, you can set default parameters in your methods like this:

public function method($param=''){}

So that if nothing is passed, you still have a valid value.

You can also pass to your index method like this:

$route['method/(:any)/(:any)'] = 'controller/method/index/$1/$2';
$route['method/(:any)'] = 'controller/method/index/$1';

Obviously these are just examples. You can also include folders and more complex routing but that should get you started.

Best Answer

Related Solutions

Php – CodeIgniter: Page not found when passing parameters to a controller

Php – How to route the URI with parameters to a method in codeigniter

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