Functions.php in child theme that loads CSS file breaks website

The reason for the syntax error is this typo:

<? php 

It should be

<?php 

Secondly, you should use the wp_enqueue_scripts hook instead of the wp_head hook.

Check out the Codex for more info on the wp_enqueue_scripts hook.

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