PDO in Codeigniter

[eluser]Chad Fulton[/eluser]
I think that there is some confusion in this thread about the way PDO and CI are being integrated. In kgill's DB.php hack, he essentially just makes it so that $this->db is a PDO object.

So, in his approach, $this->db is identical to the following:

Code:

$pdo = new PDO( ... )

In other words, $this->db is no longer connected to CodeIgniter in any way. Maybe this is where your confusion is coming from. Since you are making $this->db a PDO object, you can use it exactly as you normally would (I think you mentioned that you have some familiarity with PDO?).

Edit:
Whoops, posted this too late, and you'd already gotten to the $stmt->fetch(); part.

As far as I can see, there is some bug in your code somewhere, unfortunately since I can't see it and your database I don't know what it is.

Try this, for debugging:

Code:

//dummy variable
$pass_thru = 5;

$stmt = $this->db->prepare("SELECT * FROM tbl_blog WHERE blog_id <= :test");
$stmt->bindParam(':test', $pass_thru, PDO::PARAM_INT);

// Notice that execute() returns TRUE on success, FALSE on failure
if($stmt->execute()) {
    echo count($stmt->fetchAll(PDO::FETCH_ASSOC));
}
else {
    print_r($stmt->errorInfo());
}
die;