Laravel Queries Strings

问题:

Does anyone know if it's possible to make use of URL query's within Laravel.

Example

I have the following route:

Route::get('/text', 'TextController@index');

And the text on that page is based on the following url query:

http://example.com/text?color={COLOR}

How would I approach this within Laravel?

回答1:

Yes, it is possible. Try this:

Route::get('test', function(){
    return "<h1>" . Input::get("color") . "</h1>";
});

and call it by going to http://example.com/test?color=red.

You can, of course, extend it with additional arguments to your heart's content. Try this:

Route::get('test', function(){
    return "<pre>" . print_r(Input::all(), true) . "</pre>";
});

and add some more arguments:

http://example.com/?color=red&time=now&greeting=bonjour`

This will give you

Array
(
    [color] => red
    [time] => now
    [greeting] => bonjour
)

回答2:

For future visitors, I use the approach below for > 5.0. It utilizes Laravel's Request class and can help keep the business logic out of your routes and controller.

Example URL

admin.website.com/get-grid-value?object=Foo&value=Bar

Routes.php

Route::get('get-grid-value', 'YourController@getGridValue');

YourController.php

/**
 * $request is an array of data
 */
public function getGridValue(Request $request)
{
    // returns "Foo"
    $object = $request->query('object');

    // returns "Bar"
    $value = $request->query('value');

    // returns array of entire input query...can now use $query['value'], etc. to access data
    $query = $request->all();

    // Or to keep business logic out of controller, I use like:
    $n = new MyClass($request->all());
    $n->doSomething();
    $n->etc();
}

For more on retrieving inputs from the request object, read the docs.

回答3:

Query params are used like this:

use Illuminate\Http\Request;

class ColorController extends BaseController{

    public function index(Request $request){
         $color = $request->query('color');
    }