使用名称空间的pdo库

Question

Everything works fine as long as I have not added namespace. Befor PDO i add /, but stil PDO object is empty, why? Whats wrong with my code?

Full sampe:

<?php
namespace ProjectM;

class classPDO extends DbCore
{
    public function get()
    {               
        $this->dbLink = new \PDO('mysql:host=localhost;dbname=test_db', 'root', 'pass1312');

        print_r($this->dbLink); // - always empty

        $res = $this->dbLink('SELECT * FROM product')->fetchAll(PDO::FETCH_ASSOC);  

        print_r($res); // - always empty
    }

Error: Fatal error: Call to undefined method Core\\classPDO::dbLink()

Why "$this->dbLink" is empty? Thanks

Answer 1

Your new \\PDO instantiation is correct. Your property ->dbLink gets created alright. But the PDO instance does not implement __call . Thus this won't work:

$res = $this->dbLink('SELECT ...')

You still need to follow the API of the PDO class.
In your case, use the ->query method after referencing your PDO instance property:

$res = $this->dbLink->query('SELECT ...')