Summary of laravel generating and obtaining different types of URL addresses

The function of generating URLs is a must-have function for any framework. Laravel provides several methods to generate URLs. Let’s take a look below.

Auxiliary function url

The auxiliary function url can generate any URL. If no domain name is given, the domain name of this system will be used by default.

echo url('http://baidu.com');  //http://baidu.com
echo url('/users/get/3');  // http://localhost:8000/user/get/3

Get the current URL

There are many ways to get the current url, in addition to getting the address of the previous page. But there are some differences between these methods.

echo url()->current(); 
echo url()->full();
echo url()->previous();

If the current URL address is http://www.example.com/news/1?a=b&c=d,

current this method can get the current url(), But it cannot get the query string (i.e.?a=b&c=d), while full can get the complete path.

In addition to the above methods, you can also obtain the current URL address through laravel's response.

• $request->path() This method can only obtain the path of the current request, but cannot obtain the domain name and query string

• $request->url() This method is used the same as url()->current(), but the query string cannot be obtained.

• ##$request->fullUrl( ) This method has the same effect as url()->full() and can obtain the complete URL address.

Route naming URL

We often set a name for a route. After setting it, you can Use this name to get the URL address of the route. The demo code is given below:

First set a name for a route, the code is as follows:

Route::get('/news', function ()
{
})->name('news');

Then you can get the url address of the route:

echo route('news');

If this If the route has parameters, you can set the routing parameters through the second parameter of route. The demo code is as follows:

Route::get('/news/page/{page}/page_num/{pageNum}', function ()
{

})->name('news');

The code to set the url is as follows:

echo route('news', ['page' => 1, 'page_num' => 15]);

The URL of the controller

The URL of the controller Addresses are also often used in projects. The URL of the controller is obtained through the action function. The following is the demo code:

$url = action('IndexController@index');

If the controller method requires routing parameters, they can be passed through the second parameter of the action. The demo code is as follows:

$url = action('IndexController@index', ['id' => 1]);

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