PHP 用户删除功能：数据库操作及结果提示

// This is a function declaration for the delete function
public function delete($id)
{
    // Deleting a record from the 'user' table where the id matches the given $id
    $del = Db::name('user')->where(['id' => $id])->delete();
    
    // Checking if the delete operation was successful
    if ($del) {
        // If the delete operation was successful, display a success message and redirect to the 'index' page
        $this->success('删除成功', 'index');
    } else {
        // If the delete operation failed, display an error message and redirect to the 'index' page
        $this->error('删除失败', 'index');
    }
}