怎么新建MySQL数据库

       这篇文章主要给大家分享CentOS7系统搭建LAMP的操作和如何更新PHP版本，对于新手来说了解很清楚LAMP环境的搭建是需要掌握的，希望大家阅读完这篇文章能有所收获，下面我们一起来学习一下吧。

       搭建LAMP环境 用yum安装

       安装Apache

       1.安装Apache

[root@localhost /]# yum install httpd httpd-devel

      2.启动Apache

[root@localhost /]# systemctl start httpd

      3.设置Apache开机启动

[root@localhost /]# systemctl enable httpd
Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.

      4.查看Apache状态

[root@localhost /]# systemctl status httpd
● httpd.service - The Apache HTTP Server
  Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
  Active: active (running) since 五 2017-07-21 17:21:37 CST; 6min ago
   Docs: man:httpd(8)
      man:apachectl(8)
 Main PID: 2449 (httpd)
  Status: "Total requests: 11; Current requests/sec: 0; Current traffic:  0 B/sec"
  CGroup: /system.slice/httpd.service
      ├─2449 /usr/sbin/httpd -DFOREGROUND
      ├─2450 /usr/sbin/httpd -DFOREGROUND
      ├─2451 /usr/sbin/httpd -DFOREGROUND
      ├─2452 /usr/sbin/httpd -DFOREGROUND
      ├─2453 /usr/sbin/httpd -DFOREGROUND
      ├─2454 /usr/sbin/httpd -DFOREGROUND
      ├─2493 /usr/sbin/httpd -DFOREGROUND
      ├─2494 /usr/sbin/httpd -DFOREGROUND
      └─2495 /usr/sbin/httpd -DFOREGROUND

7月 21 17:21:35 nmserver-7.test.com systemd[1]: Starting The Apache HTTP Server...
7月 21 17:21:36 nmserver-7.test.com httpd[2449]: AH00558: httpd: Could not reliably determine the server's fully q...ssage
7月 21 17:21:37 nmserver-7.test.com systemd[1]: Started The Apache HTTP Server.
Hint: Some lines were ellipsized, use -l to show in full.

      5.防火墙开启80端口, 依此执行以下命令

[root@localhost /]# firewall-cmd --permanent --zone=public --add-service=http
success
[root@localhost /]# firewall-cmd --permanent --zone=public --add-service=https
success
[root@localhost /]# firewall-cmd --reload
success

      6.查看80端口监听状态

[root@localhost /]# netstat -tulp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address      Foreign Address     State    PID/Program name  
tcp    0   0 0.0.0.0:ssh       0.0.0.0:*        LISTEN   1084/sshd      
tcp    0   0 localhost:smtp     0.0.0.0:*        LISTEN   1486/master     
tcp6    0   0 [::]:ssh        [::]:*         LISTEN   1084/sshd      
tcp6    0   0 localhost:smtp     [::]:*         LISTEN   1486/master     
tcp6    0   0 [::]:http        [::]:*         LISTEN   2449/httpd     
udp    0   0 localhost:323      0.0.0.0:*              592/chronyd     
udp6    0   0 localhost:323      [::]:*               592/chronyd 

      7.查看服务器IP

[root@localhost /]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
  link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
  inet 127.0.0.1/8 scope host lo
    valid_lft forever preferred_lft forever
  inet6 ::1/128 scope host 
    valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
  link/ether 00:0c:29:56:bc:cf brd ff:ff:ff:ff:ff:ff
  inet 192.168.5.133/24 brd 192.168.8.255 scope global ens33
    valid_lft forever preferred_lft forever
  inet6 fe80::20c:29ff:fe56:bccf/64 scope link 
    valid_lft forever preferred_lft forever
3: bridge0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
  link/ether ea:89:d5:c7:32:73 brd ff:ff:ff:ff:ff:ff

      8.浏览器登陆查看

      安装mysql

      1.安装mysql

[root@localhost /]# yum install mariadb mariadb-server mariadb-libs mariadb-devel
[root@localhost /]# rpm -qa |grep maria
mariadb-libs-5.5.52-1.el7.i686
mariadb-5.5.52-1.el7.i686
mariadb-server-5.5.52-1.el7.i686
mariadb-devel-5.5.52-1.el7.i686

      2.开启Mysql，并设置开机启动，检查状态

[root@localhost /]# systemctl start mariadb 
[root@localhost /]# systemctl enable mariadb 
Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.
[root@localhost /]# systemctl status mariadb 
● mariadb.service - MariaDB database server
  Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
  Active: active (running) since 六 2017-07-22 21:19:20 CST; 21s ago
 Main PID: 9603 (mysqld_safe)
  CGroup: /system.slice/mariadb.service
      ├─9603 /bin/sh /usr/bin/mysqld_safe --basedir=/usr
      └─9760 /usr/libexec/mysqld --basedir=/usr --datadir=/v...

7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:16 nmserver-7.test.com mysqld_safe[9603]: 170722 21...
7月 22 21:19:16 nmserver-7.test.com mysqld_safe[9603]: 170722 21...
7月 22 21:19:20 nmserver-7.test.com systemd[1]: Started MariaDB ...

      3.查看监听状态

[root@localhost /]# netstat -tulp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address      Foreign Address     State    PID/Program name  
tcp    0   0 0.0.0.0:ssh       0.0.0.0:*        LISTEN   1084/sshd      
tcp    0   0 0.0.0.0:mysql      0.0.0.0:*        LISTEN   9760/mysqld     
tcp6    0   0 [::]:ssh        [::]:*         LISTEN   1084/sshd      
tcp6    0   0 [::]:http        [::]:*         LISTEN   2449/httpd     
udp    0   0 localhost:323      0.0.0.0:*              592/chronyd     
udp6    0   0 localhost:323      [::]:*               592/chronyd 

      4.数据库安全设置

[root@localhost /]# mysql_secure_installation 

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
   SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] n
 ... skipping.

By default, MariaDB comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done! If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

      5.登陆数据库测试

[root@localhost /]# mysql -uroot -p
Enter password: 
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 5.5.52-MariaDB MariaDB Server

Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> show databases;
+--------------------+
| Database      |
+--------------------+
| information_schema |
| mysql       |
| performance_schema |
+--------------------+
3 rows in set (0.02 sec)

MariaDB [(none)]>  

      安装PHP

      1.安装PHP

[root@localhost /]# yum -y install php
[root@localhost /]# rpm -ql php
/etc/httpd/conf.d/php.conf
/etc/httpd/conf.modules.d/10-php.conf
/usr/lib/httpd/modules/libphp5.so
/usr/share/httpd/icons/php.gif
/var/lib/php/session

      2.将php与mysql关联起来

[root@localhost /]# yum install php-mysql
[root@localhost /]# rpm -ql php-mysql
/etc/php.d/mysql.ini
/etc/php.d/mysqli.ini
/etc/php.d/pdo_mysql.ini
/usr/lib/php/modules/mysql.so
/usr/lib/php/modules/mysqli.so
/usr/lib/php/modules/pdo_mysql.so

      3.安装常用PHP模块

[root@localhost /]# yum install -y php-gd php-ldap php-odbc php-pear php-xml

 php-xmlrpc php-mbstring php-snmp php-soap curl curl-devel php-bcmath

      4.测试PHP

[root@localhost /]# cd /var/www/html/
[root@localhost /]# ls
[root@localhost /]# pwd
/var/www/html
[root@localhost /]# vi info.php

<?php
    phpinfo();
?>
~                                            
~                                            
~                                            
~                                            
~                                            
~                                            
~                                            
~                                      
:wq

      5.重启Apache

[root@localhost /]# systemctl restart httpd

      6.测试PHP

更新PHP版本

       1.首先查看是否有老版本

[root@localhost /]# yum list installed | grep php

       2.移除老版本

[root@localhost /]# yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-gd.x86_64 php-ldap.x86_64 

php-mbstring.x86_64 php-mcrypt.x86_64 php-mysql.x86_64 php-pdo.x86_64

       3.由于linux的yum源不存在php7.x，所以我们要更改yum源：

[root@localhost /]# rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
[root@localhost /]# rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

       4.查看yum源中有没有php7.x

[root@localhost /]# yum search php7
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
epel/x86_64/metalink                                                 | 5.9 kB 00:00:00   
 * base: mirrors.aliyun.com
 * epel: my.mirrors.thegigabit.com
 * extras: mirrors.cn99.com
 * updates: mirrors.163.com
 * webtatic: uk.repo.webtatic.com
epel                                                         | 5.4 kB 00:00:00   
webtatic                                                       | 3.6 kB 00:00:00   
(1/5): epel/x86_64/group_gz                                              | 90 kB 00:00:01   
(2/5): webtatic/x86_64/group_gz                                            | 448 B 00:00:04   
(3/5): epel/x86_64/primary_db                                             | 6.9 MB 00:00:06   
(4/5): epel/x86_64/updateinfo                                             | 1.0 MB 00:00:10   
(5/5): webtatic/x86_64/primary_db                                           | 232 kB 00:00:14   
========================================== N/S matched: php7 =================================
mod_php71w.x86_64 : PHP module for the Apache HTTP Server
mod_php72w.x86_64 : PHP module for the Apache HTTP Server
php70w.x86_64 : PHP scripting language for creating dynamic web sites
php70w-bcmath.x86_64 : A module for PHP applications for using the bcmath library
php70w-cli.x86_64 : Command-line interface for PHP
php70w-common.x86_64 : Common files for PHP
php70w-dba.x86_64 : A database abstraction layer module for PHP applications
php70w-devel.x86_64 : Files needed for building PHP extensions
php70w-embedded.x86_64 : PHP library for embedding in applications
php70w-enchant.x86_64 : Enchant spelling extension for PHP applications
php70w-fpm.x86_64 : PHP FastCGI Process Manager
php70w-gd.x86_64 : A module for PHP applications for using the gd graphics library
php70w-imap.x86_64 : A module for PHP applications that use IMAP
php70w-interbase.x86_64 : A module for PHP applications that use Interbase/Firebird databases
php70w-intl.x86_64 : Internationalization extension for PHP applications
php70w-ldap.x86_64 : A module for PHP applications that use LDAP
php70w-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
php70w-mcrypt.x86_64 : Standard PHP module provides mcrypt library support
php70w-mysql.x86_64 : A module for PHP applications that use MySQL databases
php70w-mysqlnd.x86_64 : A module for PHP applications that use MySQL databases
php70w-odbc.x86_64 : A module for PHP applications that use ODBC databases
php70w-opcache.x86_64 : An opcode cache Zend extension
php70w-pdo.x86_64 : A database access abstraction module for PHP applications
php70w-pdo_dblib.x86_64 : MSSQL database module for PHP
php70w-pear.noarch : PHP Extension and Application Repository framework
php70w-pecl-apcu.x86_64 : APCu - APC User Cache
php70w-pecl-apcu-devel.x86_64 : APCu developer files (header)
php70w-pecl-geoip.x86_64 : Extension to map IP addresses to geographic places
php70w-pecl-igbinary.x86_64 : Replacement for the standard PHP serializer
php70w-pecl-igbinary-devel.x86_64 : Igbinary developer files (header)
php70w-pecl-imagick.x86_64 : Provides a wrapper to the ImageMagick library
php70w-pecl-imagick-devel.x86_64 : Imagick developer files (header)
php70w-pecl-memcached.x86_64 : Extension to work with the Memcached caching daemon
php70w-pecl-mongodb.x86_64 : PECL package MongoDB driver
php70w-pecl-redis.x86_64 : Extension for communicating with the Redis key-value store
php70w-pecl-xdebug.x86_64 : PECL package for debugging PHP scripts
php70w-pgsql.x86_64 : A PostgreSQL database module for PHP
php70w-phpdbg.x86_64 : Interactive PHP debugger
php70w-process.x86_64 : Modules for PHP script using system process interfaces
php70w-pspell.x86_64 : A module for PHP applications for using pspell interfaces
php70w-recode.x86_64 : A module for PHP applications for using the recode library
php70w-snmp.x86_64 : A module for PHP applications that query SNMP-managed devices
php70w-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php70w-tidy.x86_64 : Standard PHP module provides tidy library support
php70w-xml.x86_64 : A module for PHP applications which use XML
php70w-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php71w-bcmath.x86_64 : A module for PHP applications for using the bcmath library
php71w-cli.x86_64 : Command-line interface for PHP
php71w-common.x86_64 : Common files for PHP
php71w-dba.x86_64 : A database abstraction layer module for PHP applications
php71w-devel.x86_64 : Files needed for building PHP extensions
php71w-embedded.x86_64 : PHP library for embedding in applications
php71w-enchant.x86_64 : Enchant spelling extension for PHP applications
php71w-fpm.x86_64 : PHP FastCGI Process Manager
php71w-gd.x86_64 : A module for PHP applications for using the gd graphics library
php71w-imap.x86_64 : A module for PHP applications that use IMAP
php71w-interbase.x86_64 : A module for PHP applications that use Interbase/Firebird databases
php71w-intl.x86_64 : Internationalization extension for PHP applications
php71w-ldap.x86_64 : A module for PHP applications that use LDAP
php71w-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
php71w-mcrypt.x86_64 : Standard PHP module provides mcrypt library support
php71w-mysql.x86_64 : A module for PHP applications that use MySQL databases
php71w-mysqlnd.x86_64 : A module for PHP applications that use MySQL databases
php71w-odbc.x86_64 : A module for PHP applications that use ODBC databases
php71w-opcache.x86_64 : An opcode cache Zend extension
php71w-pdo.x86_64 : A database access abstraction module for PHP applications
php71w-pdo_dblib.x86_64 : MSSQL database module for PHP
php71w-pear.noarch : PHP Extension and Application Repository framework
php71w-pecl-apcu.x86_64 : APCu - APC User Cache
php71w-pecl-apcu-devel.x86_64 : APCu developer files (header)
php71w-pecl-geoip.x86_64 : Extension to map IP addresses to geographic places
php71w-pecl-igbinary.x86_64 : Replacement for the standard PHP serializer
php71w-pecl-igbinary-devel.x86_64 : Igbinary developer files (header)
php71w-pecl-imagick.x86_64 : Provides a wrapper to the ImageMagick library
php71w-pecl-imagick-devel.x86_64 : Imagick developer files (header)
php71w-pecl-memcached.x86_64 : Extension to work with the Memcached caching daemon
php71w-pecl-mongodb.x86_64 : PECL package MongoDB driver
php71w-pecl-redis.x86_64 : Extension for communicating with the Redis key-value store
php71w-pecl-xdebug.x86_64 : PECL package for debugging PHP scripts
php71w-pgsql.x86_64 : A PostgreSQL database module for PHP
php71w-phpdbg.x86_64 : Interactive PHP debugger
php71w-process.x86_64 : Modules for PHP script using system process interfaces
php71w-pspell.x86_64 : A module for PHP applications for using pspell interfaces
php71w-recode.x86_64 : A module for PHP applications for using the recode library
php71w-snmp.x86_64 : A module for PHP applications that query SNMP-managed devices
php71w-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php71w-tidy.x86_64 : Standard PHP module provides tidy library support
php71w-xml.x86_64 : A module for PHP applications which use XML
php71w-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php72w-bcmath.x86_64 : A module for PHP applications for using the bcmath library
php72w-cli.x86_64 : Command-line interface for PHP
php72w-common.x86_64 : Common files for PHP
php72w-dba.x86_64 : A database abstraction layer module for PHP applications
php72w-devel.x86_64 : Files needed for building PHP extensions
php72w-embedded.x86_64 : PHP library for embedding in applications
php72w-enchant.x86_64 : Enchant spelling extension for PHP applications
php72w-fpm.x86_64 : PHP FastCGI Process Manager
php72w-gd.x86_64 : A module for PHP applications for using the gd graphics library
php72w-imap.x86_64 : A module for PHP applications that use IMAP
php72w-interbase.x86_64 : A module for PHP applications that use Interbase/Firebird databases
php72w-intl.x86_64 : Internationalization extension for PHP applications
php72w-ldap.x86_64 : A module for PHP applications that use LDAP
php72w-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
php72w-mysql.x86_64 : A module for PHP applications that use MySQL databases
php72w-mysqlnd.x86_64 : A module for PHP applications that use MySQL databases
php72w-odbc.x86_64 : A module for PHP applications that use ODBC databases
php72w-opcache.x86_64 : An opcode cache Zend extension
php72w-pdo.x86_64 : A database access abstraction module for PHP applications
php72w-pdo_dblib.x86_64 : MSSQL database module for PHP
php72w-pear.noarch : PHP Extension and Application Repository framework
php72w-pecl-apcu.x86_64 : APCu - APC User Cache
php72w-pecl-apcu-devel.x86_64 : APCu developer files (header)
php72w-pecl-geoip.x86_64 : Extension to map IP addresses to geographic places
php72w-pecl-igbinary.x86_64 : Replacement for the standard PHP serializer
php72w-pecl-igbinary-devel.x86_64 : Igbinary developer files (header)
php72w-pecl-imagick.x86_64 : Provides a wrapper to the ImageMagick library
php72w-pecl-imagick-devel.x86_64 : Imagick developer files (header)
php72w-pecl-libsodium.x86_64 : Wrapper for the Sodium cryptographic library
php72w-pecl-memcached.x86_64 : Extension to work with the Memcached caching daemon
php72w-pecl-mongodb.x86_64 : PECL package MongoDB driver
php72w-pecl-redis.x86_64 : Extension for communicating with the Redis key-value store
php72w-pecl-xdebug.x86_64 : PECL package for debugging PHP scripts
php72w-pgsql.x86_64 : A PostgreSQL database module for PHP
php72w-phpdbg.x86_64 : Interactive PHP debugger
php72w-process.x86_64 : Modules for PHP script using system process interfaces
php72w-pspell.x86_64 : A module for PHP applications for using pspell interfaces
php72w-recode.x86_64 : A module for PHP applications for using the recode library
php72w-snmp.x86_64 : A module for PHP applications that query SNMP-managed devices
php72w-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php72w-sodium.x86_64 : Wrapper for the Sodium cryptographic library
php72w-tidy.x86_64 : Standard PHP module provides tidy library support
php72w-xml.x86_64 : A module for PHP applications which use XML
php72w-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol

 Name and summary matches only, use "search all" for everything.

       5.yum 安装php72w和各种拓展，选自己需要的即可:

[root@localhost /]# yum -y install php72w php72w-cli php72w-common php72w-devel php72w-embedded 

php72w-fpm php72w-gd php72w-mbstring php72w-mysqlnd php72w-opcache php72w-pdo php72w-xml php72w-pear

       6.完成安装 , 查看PHP版本

[root@localhost /]# php -v

       7.重启服务器

[root@localhost /]# systemctl restart httpd

       希望本文所述对大家centos系统配置有所帮助。

       关于centos系统搭建LAMP以及更新PHP版本的操作就介绍到这，文本有操作相关原理，步骤，命令以及注意事项，大家可以看一下，希望对大家有一定的帮助。