Retrieving GET and POST data inside Laravel controller - php

Question

I've been searching the web for how to get POST data inside the controller, so far I have found two solutions: Input::get() and $_POST.
The comment for Input::get() reads:
/**
* Gets a "parameter" value.
*
* This method is mainly useful for libraries that want to provide some flexibility.
*
* Order of precedence: GET, PATH, POST
*
* Avoid using this method in controllers:
*
* * slow
* * prefer to get from a "named" source
*
* It is better to explicitly get request parameters from the appropriate
* public property instead (query, attributes, request).
*
* #param string $key the key
* #param mixed $default the default value
* #param Boolean $deep is parameter deep in multidimensional array
*
* #return mixed
*/
What is this "named" source they refer to? What is it I should use instead of Input::get() ?

Answer 1

The documentation shows you can retrieve an input value for any HTTP verb by using Input::get().
$name = Input::get('name');

Answer 2

TO get all the inputs use Input::all() method.
To check if specific column exists use Input::has('column_name') eg.Input::has('name').
To retrieve column value use Input::get('column_name') eg. Input::get('name').

Answer 3

You can get a parameter from url using :-
request()->urlParam;
if you want to get GET parameter using :-
$request->get('current-password');
if you want to get POST parameter using :-
$request->post('current-password');

Answer 4

In modern Laravel installs, if your controller method is passed an instance of Request then you can use that. For example, all these are identical:
public function update(Request $request, Model $model) {
$some_var = $_POST["some_var"];
$some_var = $request->input("some_var");
$some_var = $request->post("some_var");
$some_var = $request->some_var;
}
If your method is not passed an instance of the current Request you can use the request() helper method to access one.