Warning: mysql_connect(): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) in /var/www/html/website/allp2pold/conn.php on line 2

Warning: mysql_select_db() expects parameter 2 to be resource, boolean given in /var/www/html/website/allp2pold/conn.php on line 4

Warning: mysql_query() expects parameter 2 to be resource, boolean given in /var/www/html/website/allp2pold/index_en.php on line 33
Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)