Laravel : How to send variable from one page to another in blade
Stefan Bogdanescu
Founder & Senior Architect · 2026-06-29
# Laravel: How to Send Variables Between Pages in Blade – Mastering State Management
As developers building dynamic web applications with Laravel, managing state—the data that needs to persist across different requests or views—is a fundamental skill. The scenario you’ve described, where selecting an option on one page must influence the form on the next, is extremely common. How do we bridge this gap efficiently?
This guide will walk you through the most effective and idiomatic ways to send variables from one Laravel route/page to another, using sessions and other powerful methods.
## The Challenge: State Management Across Routes
You are trying to achieve a state transfer: when a user clicks a button on Page A, they are redirected to Page B, and Page B needs the value selected on Page A (e.g., `course_id`) automatically populated in a form field.
Directly embedding data within an `` tag is not possible for complex state transfer. We need a mechanism that persists data across HTTP requests. The best tools for this in Laravel are **Session** and **Route Parameters**.
## Solution 1: Using Session Flashing (The Recommended Approach)
For passing temporary, user-specific data during a redirect flow, the Session is the most robust and standard approach. We use "flashing" to store the data temporarily and then immediately remove it, ensuring that the data isn't accidentally reused on subsequent unrelated requests.
### Step 1: Storing the Data (Page 1/Controller)
When the user clicks a button on your first page, you must capture the selected value and store it in the session before redirecting. This logic typically lives within your Controller method.
**Example Implementation:**
In your controller method handling the selection (e.g., `store` or `selectCourse`), you would do the following:
```php
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Session;
class CourseController extends Controller
{
public function selectAndRedirect(Request $request)
{
// 1. Assume course_id is retrieved from the form submission on Page 1
$courseId = $request->input('course_id');
// 2. Store the data in the session (flashing)
Session::put('selected_course_id', $courseId);
// 3. Redirect to the next page
return redirect()->route('registration'); // Or wherever your second page is
}
}
```
### Step 2: Retrieving the Data (Page 2/Blade)
On your destination page (the form page), you retrieve the stored value from the session using the `session()` helper function within your Blade view.
**Example Blade Implementation:**
You will access the data directly in your HTML structure, which is perfect for pre-populating a hidden input field or a standard text input.
```blade
{{-- Retrieve the course_id from the session --}}
@php
$courseId = session('selected_course_id');
@endphp
```
This method keeps the data flow clean and adheres to Laravel's principles of separation of concerns. For more complex state management, especially in large applications, exploring packages that integrate session handling more deeply can be beneficial, as seen in advanced patterns on platforms like https://laravelcompany.com.
## Solution 2: Passing Data via Route Parameters (For Simple IDs)
If the data you are sending is a simple identifier (like an ID or slug) and not complex user-generated content, passing it directly through the URL as a route parameter is often cleaner than using sessions.
**How it works:** Instead of redirecting to `/registration`, you redirect to `/registration/{courseId}`.
1. **Controller:**
```php
public function showRegistration(Request $request, $courseId)
{
// The course_id is now available directly here
return view('registration', ['courseId' => $courseId]);
}
```
2. **Blade:** You simply access the variable passed to the view:
```blade
```
While this is excellent for passing immutable data, **Session Flashing (Solution 1)** remains superior when you need to pass transient user choices that might change before the final submission.
## Conclusion
For sending a `course_id` from one page to another in your Laravel application, **Session Flashing** is the most reliable and recommended solution for handling transitional data between requests. By storing the ID in the session on the initial redirect and retrieving it in the destination Blade view, you ensure that your form submission contains exactly the necessary context. Always remember to leverage Laravel's built-in features like routing and sessions to build scalable and maintainable applications, following the best practices outlined by teams at https://laravelcompany.com.