PDO在单个查询中插入两次数据

Question

我对pdo语句有一个可怕的问题.我的类基于Object生成SQL查询,然后将查询和参数转发到Bd类并执行,但数据被插入两次到数据库.

数据库中的表

CREATE TABLE IF NOT EXISTS `es_simple_object` (
    `id_object` int(10) unsigned NOT NULL AUTO_INCREMENT,
    `active` tinyint(1) NOT NULL,

    PRIMARY KEY (`id_object`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

生成的查询

INSERT INTO es_simple_object (es_simple_object.id_object, es_simple_object.active) VALUES (NULL, ?)

生成的params数组

Array
(
    [0] => 1
)

调用Db函数

static::$db = Db::getInstance();    
static::$db->_execute($sql, $params);

Bd Class(只是用于此工作的函数)

    public static function getInstance()
    {
        if (!isset(self::$instance))
            self::$instance = new Db();

        return self::$instance;
    }

    private function __construct()
    {
        $connection = 'mysql:host='.$this->server.'; port='.$this->port.'; dbname='._DB_NAME_.'; charset='._DB_CHARSET_;

        try 
        {
            $this->link = new PDO($connection, _DB_USER_, _DB_PASSWD_);
            $this->link->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        } 
        catch (PDOException $ex) 
        {   
            Tools::_catchException($ex);

            exit;
        }

        return $this->link;
    }

    public function _execute($sql, $params = array())
    {
        try
        {           
            $pdoStatement = $this->link->prepare($sql);
            $pdoStatement->execute($params == null ? array(null) : $params);

            $this->rows_affected = $pdoStatement->rowCount();
            $this->rows_returned = $pdoStatement->columnCount();
            $this->last_id = $this->link->lastInsertId();
            $this->result = $pdoStatement;

            return $pdoStatement;
        }
        catch (PDOException $ex) 
        {
            Tools::_catchException($ex, array($sql, $params));

            return false;
        }
    }

我没有更多的想法如何解决这个问题

Answer 1

感谢@James Taylor 对.htaccess文件的建议。问题隐藏在 RewriteRule 和参数中QSA。