php insert prepared stmt - php

Question

My code looks like:
$sql_ = $this->db->prepare("SELECT * FROM user");
$sql_->execute();
$user = $sql_->fetchAll();
$sql_insert_blog = $this->db->prepare("INSERT INTO
blog
(blog_title,blog_author,blog_content,blog_tags,blog_create,blog_update)
VALUES
(:1,:2,:3,:4,:5,:6)");
$sql_insert_blog->execute(array(
":1"=>$title,
":2"=>$author,
":3"=>$content,
":4"=>$tags,
":5"=>$date_create,
":6"=>$date_update
));
So the first sql statement is to proof if the database coneccion is active. It works when i use
print_r($user)
Th second one is the statement thats not been executed.
I have a controller that calls this function on a model, and gives all the info from the form to this function like
function newBlogEntry()
{
$title = $_POST["input_blog_title"];
$author = $_POST["input_blog_author"];
$content = $_POST["input_blog_content"];
$tags = $_POST["input_blog_tags"];
$date_create = date('m/d/Y h:i:s a', time());
$date_update = $date_create;
$this->model->newBlogEntry($title,$author,$content,$tags,$date_create,$date_update);
}
and the function on this model is actually called. i can select all users from db.
i allready checked all the parameters, and also every parameter can be null so, even if the form is emtpy it should be a insert in the database(This is just for testing).
But there is no entry in the database...
So my question is: what am i doing wrong here?

Answer 1

It would appear that MySQL doesn't like your date values. The default format for dates-as-strings in MySQL is YYYY-MM-DD HH:MM:SS, according to the docs; a string that looks like this will automatically be parsed as a date.

Answer 2

use (?,?,?,?,?,?) instead of (:1,:2,:3,:4,:5,:6)
and
$sql_insert_blog->execute(array($title, $author, $content, $tags, $date_create, $date_update));
and
dates should be strings with Y-m-d H:i:s php date() format