Warning: mysqli_connect() [function.mysqli-connect]: [2002] No such file or directory (trying to connect via unix:///var/mysql/mysql.sock) in xxx.php on line 14
解决方案：
cd /var
sudo mkdir mysql
sudo chmod 755 mysql
cd mysql
ln -s /tmp/mysql.sock mysql.sock原文：http://www.cnblogs.com/hupan/p/3762477.html