linux php安装mysql数据库的方法：首先关闭linux的防火墙；然后从mysql官网上下载自己适合的mysql版本；接着在mysql当前目录下设定目录的访问权限；最后查看mysql状态即可。
1、首先关闭linux的防火墙，执行命令
chkconfig iptables off
2、
从mysql官网上下载自己适合的mysql版本
https://dev.mysql.com/downloads/mysql/5.6.html#downloads，进入mysql官网，依次点击
3、下载后的mysql文件
mysql-5.6.40-linux-glibc2.12-i686.tar.gz
将下载好的mysql压缩文件放置在linux的/usr/local文件夹下，解压该压缩文件
tar -zxvf mysql-5.6.40-linux-glibc2.12-i686.tar.gz
将解压后的文件重命名为mysql
mv mysql-5.6.40-linux-glibc2.12-i686 mysql
4、创建mysql用户组及用户
groupadd mysql useradd -r -g mysql mysql
5、进入到mysql目录，执行添加MySQL配置的操作
cp support-files/my-medium.cnf /etc/my.cnf 或： cp support-files/my-default.cnf /etc/my.cnf
是否覆盖？按y 回车
6、编辑/etc/my.cnf文件；
vi /etc/my.cnf
在my.cnf文件中添加或者修改相关配置，更改完成后保存退出
1 # For advice on how to change settings please see 2 # http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html 3 # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the 4 # *** default location during install, and will be replaced if you 5 # *** upgrade to a newer version of MySQL. 6 7 [mysqld] 8 9 # Remove leading # and set to the amount of RAM for the most important data10 # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.11 # innodb_buffer_pool_size = 128M12 13 # Remove leading # to turn on a very important data integrity option: logging14 # changes to the binary log between backups.15 # log_bin16 17 # These are commonly set, remove the # and set as required.18 basedir = /usr/local/mysql19 datadir = /usr/local/mysql/data20 port = 330621 # server_id = .....22 socket = /tmp/mysql.sock23 character-set-server = utf824 skip-name-resolve25 log-err = /usr/local/mysql/data/error.log26 pid-file = /usr/local/mysql/data/mysql.pid27 28 # Remove leading # to set options mainly useful for reporting servers.29 # The server defaults are faster for transactions and fast SELECTs.30 # Adjust sizes as needed, experiment to find the optimal values.31 # join_buffer_size = 128M32 # sort_buffer_size = 2M33 # read_rnd_buffer_size = 2M 34 35 sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
7、在mysql当前目录下设定目录的访问权限（注意后面的小点，表示当前目录）
chown -R mysql . chgrp -R mysql . scripts/mysql_install_db --user=mysql chown -R root . chown -R mysql data
8、初始化数据（在mysql/bin或者mysql/scripts下有个 mysql_install_db 可执行文件初始化数据库），进入mysql/bin或者mysql/scripts目录下，执行下面命令
./mysql_install_db --verbose --user=root --defaults-file=/etc/my.cnf --datadir=/usr/local/mysql/data --basedir=/usr/local/mysql --pid-file=/usr/local/mysql/data/mysql.pid --tmpdir=/tmp
9、启动mysql，进入/usr/local/mysql/bin目录，执行下面命令
./mysqld_safe --defaults-file=/etc/my.cnf --socket=/tmp/mysql.sock --user=root &
注意，如果光标停留在屏幕上，表示启动成功，需要我们先关闭shell终端，再开启一个新的shell终端，不要执行退出操作。如果出现 mysql ended这样的语句，表示Mysql没有正常启动，你可以到log中查找问题.
10、设置开机启动，新开启shell中断后，进入mysql目录，执行下面命令
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysql
chmod 700 /etc/init.d/mysql chkconfig --add mysqld chkconfig --level 2345 mysqld on chown mysql:mysql -R /usr/local/mysql/
重启linux
reboot
查看mysql状态
service mysqld status
11、添加远程访问权限
（1）、添加mysql命令
ln -s /usr/local/mysql/bin/mysql /usr/bin （mysql的安装路径）
（2）、更改访问权限
登录mysql,执行下面命令 mysql -uroot -p 密码为空直接回车,运行以下两条命令 GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'duan' with grant option; Flush privileges;
退出mysql
exit
重启linux,就完成了
reboot
注：本机访问mysql，root账户默认是没有密码的，端口号默认3306，如果需要修改root账户密码，在/usr/local/mysql/bin目录下，执行下面命令
./mysqladmin -h 127.0.0.1 -P3306 -uroot password 'duan'exit
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