YII 的安全性演示代码SQL

 /**
     * SQL注入演示
     */
    public function sql_unsafe($id) {
        $connection = Yii::app()->db;
        $sql = "SELECT * FROM qi_cell WHERE id = {$id}";
        $command = $connection->createCommand($sql);
        
        // $command->bindParam(":id", $id, PDO::PARAM_STR);
        
        $command->execute();
    }
    
    /**
     * 防SQL注入演示
     */
    public function sql_safe() {
        $connection = Yii::app()->db;
        $sql = "SELECT * FROM qi_cell WHERE id = :id";
        $command = $connection->createCommand($sql);
        
        $command->bindParam(":id", $id, PDO::PARAM_STR);
        
        $command->execute();
    }