Session Tutorial in Laravel 11

 <?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class TestController extends Controller

{

    public function index()

    {

        $valueNine = session("name");

        return view("welcomeTwo",compact("valueNine"));

        // session() is a Global Helper Function

        // "Request" Class is used to access Form Data

        $value = session()->all();

        echo "<pre>";

        print_r($value);

        echo "</pre>";

        $valueTwo = session()->get("name");  //Get(Read) Session Value

        // we can use default value(Here, "HELLO" is default value of name "name") of given session in case of not present given session as shown below :

        $valueTwo = session("name", "HELLO");    //Get(Read) Session Value

        echo $valueTwo . "<br><br>";

        // except() method returns Array

        // $valueThree = session()->except(["class"]);

        // echo "<pre>";

        // print_r($valueThree);

        // echo "</pre>";

        // $valueFour = session()->only(["name","_previous"]);

        // echo "<pre>";

        // print_r($valueFour);

        // echo "</pre>";

        // To Check whether any particular session exists OR Not, we can use has() method of session

        if (session()->has("name")) {

            $valueFive = session()->get("name");

            echo $valueFive . "<br><br>";

        } else {

            echo "has() : Name Key does not exist<br><br>";

        }

        // We can also use exists() method to check whether any particular session exists OR Not

        if(session()->exists("name")) {

            $valueSix = session()->get("name");

            echo $valueSix . "<br><br>";

        } else {

            echo "exists() : Name key does not exist<br><br>";

        }

        if(session()->exists("fruit")) {

            $valueSeven = session()->get("fruit");

            echo $valueSeven . "<br><br>";

        } else {

            echo "exists() : Fruit key does not exist<br><br>";

        }

        // exists() method returns true if session key exists OR session has NULL value and returns false(OR will go in else part) only if session key doesn't exists

        // exists() will check only whether session key is present OR Not, Not value

        // If any session key has NULL value then exists() method will print it.

        // has() method returns true only if session key exists and returns false(OR will go in else part) if session key doesn't exists OR session key has NULL value

        if(session()->has("fruit")) {

            $valueEight = session()->get("fruit");

            echo $valueEight . "<br><br>";

        } else {

            echo "has() : Fruit key does not exist<br><br>";

        }

    }

    public function storeSession(Request $request)

    {

        // When we use "Request Class" with session at that time, we must use "put()" method

        session(["name" => "HelloWorld", "class" => "BTech", "fruit" => NULL]);

        // $request->session()->put("class","BTech");

        session()->increment("count", $incrementBy = 2);

        session()->decrement("countTwo", $decrementBy = 2);

        // regenerate() method will generate different different Tokens every time

        // regenerate() method is used for security purpose because every time different Tokens are generated so hackers will confuse and it will trouble for hackers

        session()->regenerate();

        // session()->flash("status","Session Saved Successfully.");

        // return redirect("/welcomeTwoPage");

        return redirect("/index");

       

    }

    public function deleteSession()

    {

        // session()->forget(["name", "class"]);

        // We can use flush() method to remove All Sessions simultaneously

        session()->flush();

        // invalidate() method is used for security purpose because every time different Tokens are generated so hackers will confuse and it will trouble for hackers

        // and invalidate() method removes all sessions. invalidate() method works same as regenerate() method.

        session()->invalidate();

        return redirect("/index");

    }

}

Above File is app\Http\Controllers\TestController.php File

Below File is routes\web.php File

<?php

use App\Http\Controllers\TaskController;

use App\Http\Controllers\TestController;

use App\Http\Controllers\UserController;

use Illuminate\Support\Facades\Route;

Route::get('/', function () {

    return view('welcome');

});

Route::controller(TestController::class)->group(function () {

    Route::get("/index", "index");

    Route::get("/store-session", "storeSession");

    Route::get("/delete-session", "deleteSession");

});

Route::get("/welcomeTwoPage", function () {

    return view("welcomeTwo");

});

Route::get("/form", function () {

    return view("adduser");

})->name("adduser");

Route::post("/add", [UserController::class, "addUser"])->name("addUser");

Route::get("/showAllTasks", [TaskController::class, "showTask"])->name("home.task");

Route::post("/checkValidate", [TaskController::class, "validateUser"])->name("validate.user");

Route::get("/singleTask/{id}", [TaskController::class, "singleTask"])->name("single.task");

Route::get("/updatePage/{id}", [TaskController::class, "updatePage"])->name("update.page");

Route::put("/updateTask/{id}", [TaskController::class, "updateTask"])->name("update.task");

Route::get("/delete/{id}", [TaskController::class, "deleteTask"])->name("delete.task");

Route::get("/addNew", function () {

    return view("adduser");

})->name("addNew");

// Route::get("/home", function() {

//     return view("home");

// })->name("home.task");