Phalcon PHP扩展并覆盖了“更新”和“插入”功能

Question

I would like to implement my own database dialect in Phalcon PHP. I would like to extend and override few functions that are already reserved for PDO. This is what I'm trying to do:

class DB extends \Phalcon\Db\Adapter\Pdo\Mysql{
    function _construct($connection_variables=array())
    {
        parent::_construct($connection_variables);
    }

    function update($table="",$variables="")
    {
        parent::execute($query);
    }
}

So, when I try to to call in the model:

$this->db->update('test',array('id'=>'1'));

It gives me an error stating that:

Fatal error: Declaration of Libraries\DB::update() must be compatible with Phalcon\Db\AdapterInterface::update($table, $fields, $values, $whereCondition = NULL, $dataTypes = NULL) in ..... 

How can I override update and insert functions? Thanks

Answer 1

Your update method must match with the method declared in the Phalcon\\Db\\AdapterInterface interface, it should be:

function update($table, $fields, $values, $whereCondition = NULL, $dataTypes = NULL)
{
    // ...
}

Instead of:

function update($table="",$variables="")
{
    // ...
}

The method signature/header must be the same as it is in the interface .