Laravel add Foreign Key in migrations

php artisan make:migration adding_foreignkey_users_table

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class AddingForeignkeyPostsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('posts', function (Blueprint $table) {
            $table->unsignedBigInteger('user_id');
            $table->foreign('user_id')->references('id')->on('users');
        });
    }
    
    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('users', function (Blueprint $table) {
            $table->dropForeign(['user_id']);
            $table->dropColumn('user_id');
        });

        //or call disable foreignkey
        Schema::disableForeignKeyConstraints();
    }
};

Now, run the command php artisan migrate