How to Fix “Your PHP Installation Appears to Be Missing the MySQL Extension Which Is Required by WordPress” Error

Step no_1 Check What Version of PHP You’re Using
Step No-2 Update the Core WordPress Software
Step No-3 Check to See If the MySQL Extension Is Installed
Step No-4 Make Sure PHP Extension Is Configured Properly

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