How to Edit article in my database with a htm & php form?

[alister]

Im very new in php and im having some problem creating a CMS i got everything ready but i dont know how to update(edit) my articles using a form and php. I need help me? I need to have one page diplaying the "articles title" with an "edit" link that bring me to a form where i can edit the info.thanks for your time.Database:My Database is like this:

• Field------------------Type------------Collation---------Attributes----Null----Default Extra
• article_id--------------int(11)--------------------------------------------------No------auto_increment
• article_photo---------varchar(255)--latin1_swedish_ci------------------No
• article_title------------varchar(255)--latin1_swedish_ci------------------No
• article_preview-------varchar(150)--latin1_swedish_ci------------------No
• article_content-------text---------------latin1_swedish_ci-----------------No
• article_timestamp----int(11)--------------------------------------------------No

this is my includes/connection.php:\[code\]<?phptry { $pdo = new PDO('mysql:host=********;dbname=****', '********', '*******');} catch (PDOException $e) { exit('Database error.');}?>\[/code\]