How to make id user can be view content

WP no longer uses role names in this type of function. You need to use

if(current_user_can($capability)) {

where $capability is a capability like read_posts, publish_posts, etc. and not the name of a role like subscriber or editor.

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