Laravel passing data using ajax to controller
Stefan Izdrail
Founder & Senior Architect · 2026-06-29
Title: Laravel Passing Data Using Ajax to Controller
Body:
When working with Laravel, a popular PHP framework, passing data from an AJAX call to your controller method might seem daunting at first. However, with the right approach and the correct implementation of the HTTP methods, you can easily achieve this functionality. In this blog post, we will discuss how to pass an id from an AJAX call to Laravel's 'TestController@getAjax()' function while utilizing the testUrl route.
To start with, let us first review your code and provide a more detailed explanation.
```php
Route::get('testUrl', 'TestController@getAjax');
```
In your front-end code, we can see that you have set up a click handler on the '#button' element. Within this event listener, an AJAX request is made via $.ajax(). The request has been configured to use the 'GET' HTTP method and send data consisting of 'id: 1'. This information will be sent along with your request when making the call.
Now let us look at the controller code:
```php
public function getAjax()
{
$id = $_POST['id'];
$test = new TestModel();
$result = $test->getData($id);
foreach($result as $row)
{
$html =
'<tr>
<td>' . $row->name . '</td>' .
'<td>' . $row->address . '</td>' .
'<td>' . $row->age . '</td>' .
'</tr>';
}
return $html;
}
```
In this code snippet, the getAjax() method first retrieves the id from $_POST['id']. It then uses that value to query a TestModel object for related data. The data is iterated through and formatted into HTML markup to display in your application's view.
However, we should consider a few best practices to improve this code:
1. Use the proper HTTP method: Since you have set up an AJAX request with a 'GET' type, it would be more appropriate to use Laravel's resourceful routing. You can change your route definition as follows:
```php
Route::get('testUrl/{id}', 'TestController@getAjax');
```
This will make the URL cleaner and more readable: https://example.com/testUrl/1
2. Use Laravel's built-in AJAX helper functions for better consistency and maintainability: Instead of using the $.ajax() API directly in your JavaScript code, you can use Laravel's AJAX helper functions. This will allow you to leverage Laravel's conventions and automate some tasks like CSRF tokens.
```html
```
3. Improve the Controller code using Laravel's Model binding: To make your application more DRY and robust, you can take advantage of Laravel's model binding feature. This will allow you to fetch the data in a cleaner way while ensuring that only valid inputs are accepted.
```php
public function getAjax($id)
{
$test = TestModel::findOrFail($id);
return view('my_view', compact('test'));
}
// In your view, render the data using Blade syntax:
@if ($test)
@endif
```
By applying these best practices and following Laravel's conventions, you will be able to easily pass data from an AJAX call to your controller methods. For more information on working with AJAX in Laravel, refer to the official documentation: https://laravel.com/docs/8.x/ajax or reach out to expert developers at [Laravel Company](https://laravelcompany.com).
| Name | Address | Age |