how to add column in existing table using migration in laravel code example

Example 1: laravel migration add column after

Schema::table('users', function ($table) {
    $table->string('email')->after('id')->nullable();
});

Example 2: add column in laravel migration

php artisan make:migration add_paid_to_users_table --table=users

Example 3: add new column in laravel migration

Schema::table('table_name', function (Blueprint $table) {
            $table->string('column_name', 255)->nullable()->after('previous_column_name');
        });