add new column in the migration code example

Example 1: laravel migration add column to existing table

php artisan make:migration add_paid_to_users_table --table=users
  
public function up()
{
    Schema::table('users', function($table) {
        $table->integer('paid');
    });
}

public function down()
{
    Schema::table('users', function($table) {
        $table->dropColumn('paid');
    });
}

php artisan migrate

Example 2: add new column in existing table in laravel migration

public function up()
{
    Schema::table('users', function($table) {
        $table->integer('paid');
    });
}