如何在Laravel框架中获取textarea的内容与值？

Hey there! Let's break down how to properly retrieve the value of a textarea in your Laravel setup, based on the code and config you shared.

Step 1: Verify Your View Setup #

First, make sure your admin.blade.php view has a properly configured form and textarea:

• The form should use the POST method and point to your route.
• Include Laravel's CSRF token (this is mandatory to avoid 419 errors).
• Your textarea must have the correct name attribute matching what you're trying to fetch (in your case, compr).

Here's what that might look like in your view:

<form method="POST" action="{{ route('sname') }}">
    @csrf
    <textarea name="compr" id="compr" rows="6" placeholder="Enter your content..."></textarea>
    <button type="submit">Submit</button>
</form>

Step 2: Retrieve the Value in Your Controller #

While using $_POST['compr'] technically works, Laravel provides a more secure, framework-friendly way using the Request class. This approach also makes validation and error handling easier.

Update your GeneralController.php like this:

use Illuminate\Http\Request;

class GeneralController extends Controller
{
    public function Sname(Request $request)
    {
        // Option 1: Get the value directly using the input() method
        $comprContent = $request->input('compr');
        
        // Option 2: Shorthand using property access
        $comprContent = $request->compr;
        
        // Optional: Add validation to ensure the content is present
        $validatedData = $request->validate([
            'compr' => 'required|string', // Adjust rules as needed
        ]);
        $comprContent = $validatedData['compr'];
        
        // Now you can use $comprContent for whatever you need (store, process, etc.)
        return back()->with('success', 'Content received successfully!');
    }
}

Step 3: Tweak Your Route (Optional but Recommended) #

Your existing route works, but adding a name makes it easier to reference in your view (like we did with route('sname') above):

Route::post('sname', 'GeneralController@Sname')
    ->middleware(['auth','admin:6'])
    ->name('sname');

Key Notes #

• Always include the @csrf directive in your POST forms—Laravel blocks requests without it by default.
• Using the Request class gives you access to Laravel's validation, error messaging, and other helpful features that raw $_POST doesn't provide.
• If you still want to use $_POST, double-check that your form is correctly submitted and the CSRF token is present (otherwise you'll get a 419 error).

内容的提问来源于stack exchange，提问作者Seirid