Add the column in the database table only if it's not present & can drop it if, its present

Now you can add the column in the database table only if its not present & can drop it if, its present. For that following methods are introduced:

whenTableDoesntHaveColumn
whenTableHasColumn

Available from Laravel 9.6.0

return new class extends Migration {
    public function up()
    {
        Schema::whenTableDoesntHaveColumn('users', 'name', function (Blueprint $table) {
            $table->string('name', 30);
        });
    }
 
    public function down()
    {
        Schema::whenTableHasColumn('users', 'name', function (Blueprint $table) {
            $table->dropColumn('name');
        });
    }
}