PHP variables in a post?

By default, PHP is stripped out of the posts content. You can use this plugin to aleivate this:
http://wordpress.org/extend/plugins/exec-php/

This will give you a quick, easy fix to be able to do it the way you are trying to. I would suggest reading http://codex.wordpress.org/Custom_Fields for the more proper way to do this though.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)