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Bạn phải có khả năng để xem mysql và mysqli mục trong trang cấu hình PHP trước khi cố gắng đi thêm nữa. Nếu không có họ, bạn không thể kết nối với MySQL. Nguyên nhân phổ biến nhất cho họ không xuất hiện nằm trong Windows không đọc phiên bản chính xác của , | SETTING UP MYSQL AND PHPMYADMIN mysqli Fviy-sqll Support enabled Client API library version Client API header version MYSQLI_SOCKET tmp Directive Local Value Master Vallie default Jf - ifa ue Assuming everything went well skip ahead to the section Using MySQL with a graphical interface. If you cannot find mysql and mysqli in the PHP configuration read on. Troubleshooting You must be able to see the mysql and mysqli entries in the PHP configuration page before attempting to go any further. Without them you can t connect to MySQL. The most common cause for them failing to appear lies in Windows not reading the correct version of or not being able to find at all. This usually happens if you had a previous installation of PHP and didn t remove it from the Windows system folders. After running phpinfo check the value for Configuration File Path it s the sixth item from the top . If it s pointing to C WINDOWS or C WINNT you should return to Chapter 2 and follow the advice on removing an old version of PHP. Unfortunately this doesn t always work as there may be other programs preventing Windows from reading the correct version of . If this happens to you the most practical solution is to copy to C WINDOWS or C WINNT depending on your system . You will probably also need to copy to C WINDOWS system32 or C WINNT system32. Setting up MySQL on Mac OS X MySQL is available as a Mac PKG file so everything is taken care of for you apart from some minor configuration. X When upgrading an existing installation of MySQL the Mac installer will not move your data files. You must first create a backup as described at the end of this chapter and reload them after upgrading. You must also shut down the MySQL server. If you have never installed MySQL before you don t need any special preparations just follow these instructions. 10 Downloading and installing MySQL 1. Go to downloads .