Gathering form input to display on another page_Laravel Application Development Cookbook-QQ阅读男生武侠网

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Gathering form input to display on another page

After a user submits a form, we need to be able to take that information and pass it to another page. This recipe shows how we can use Laravel's built-in methods to handle our POST data.

Getting ready

We'll need the simple form set up from the Creating a simple form section.

How to do it...

Follow these steps to complete this recipe:

Create a route to handle the POST data from the form:

Route::post('userform', function()
{
    // Process the data here
    return Redirect::to('userresults')-
        >withInput(Input::only('username', 'color'));
});

Create a route to redirect to, and to display the data:

Route::get('userresults', function()
{
    return 'Your username is: ' . Input::old('username')
        . '<br>Your favorite color is: '
        . Input::old('color');
});

How it works...

In our simple form, we're POSTing the data back to the same URL, so we need to create a route that accepts POST using the same path. This is where we would do any processing of the data, including saving to a database or validating the input.

In this case, we simply want to pass the data to the next page. There are a number of ways to accomplish this. For example, we could use the Input class's flashOnly() method:

Route::post('userform', function()
{
    Input::flashOnly('username', 'color');
    return Redirect::to('userresults');
});

However, we're using a shortcut that Laravel provides, and only passing along two of the three form fields we asked for.

On the next page, we use Input::old() to display the flashed input.