warning: mysqli::__construct(): (hy000/2002):
If it's a PHP issue, you could simply alter the configuration file php.ini wherever it's located and update the settings for PORT/SOCKET-PATH etc to make it connect to the server. In my case, I opened the file php.ini and did mysql.default_socket = /var/run/mysqld/mysqld.sock mysqli.default_socket = /var/run/mysqld/mysqld.sock
Source: stackoverflow.com