Linux installation php running environment

How to install the PHP operating environment on Linux: 1. Install Apache through "yum install httpd"; 2. Install MySql; 3. Install PHP through "yum install php"; 4. Create a PHP program for testing. .

The operating environment of this article: Red Hat 4.8.2-16 system, php5.3.29 version, DELL G3 computer

Required installation software:

• Apache
• PHP
• mysql-server

##1 Install Apache

1 Check, delete, install

rpm -qa|grep httpd    rpm -e 包名 --nodeps    yum install httpd     //安装，根据提示，输入Y即可安装成功

##2 Start, test

/etc/init.d/httpd start

备注：可以使用/etc/init.d/httpd status/stop/start/restart 分别对应  查看状态/停止/启动/重启
     也可以使用service httpd status/stop/start/restart命令，效果一样的

Enter the server IP in the windows browser and view the page. The following means that apache is successfully installed.

##Second installation MySql1 Check, delete and install

rpm -qa|grep -i mysql           
//检查是否安装
mysqlrpm -e 包名 --nodeps            
//若有则删除，另外还有一些库和头文件，我这边都没有，安装后，在他说的路径也没有找到。
yum install mysql mysql-server 
//安装，根据提示，输入Y即可安装成功。若有提示缺少依赖，直接使用yum install 安装即可，我这儿没遇到

Recommended learning: "PHP Video Tutorial"

2 Configuration and startup

Copy file: cp -f /usr/share/mysql/my-medium.cnf /etc/my.cnf (just overwrite)

Set password: mysql secure installation (Enter Y according to the prompts, enter the password twice, and press Enter. Thanks for using MYSQL! appears to indicate success)
• Remote access:

mysql -uroot -proot   //-u后面是用户名,-p后面是密码
use mysql;select Host,User from user;
update user set Host='%' where User='root'; 
//出现错误不用理睬
flush privileges;select Host,User from user;

Start mysql:/etc/init.d/mysqld start // service mysqld start has the same effect

##Three installations of PHP

1 Installation

yum install php 
//安装php
//安装组件，支持mysql
yum install php-mysql php-gd libjpeg* php-imap php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-mcrypt php-bcmath php-mhash libmcrypt

2 Configuration and startup

The original article was written There are many configurations, I don’t know what they are for, and I haven’t followed his changes for the time being.

Start: Restart httpd mysqld

• After writing the php program or modifying the program, execute the command
service php -fpm reload
• Reload
• ##Four tests

1 Test program

index.php

<?php     phpinfo();?>

index1.php

<?php 

$link = mysql_connect("localhost","root","root") or die(mysql_error());    if($link!=false)
        {echo "成功连接mysql";}    else
        {echo "与本地mysql服务器连接失败";}    mysql_close();?>

2 Put it in the root directory of php Download

,

and execute service php-fpm reload You can also configure it yourself: cat /etc/httpd/conf/httpd.conf(DocumentRoot "/var/www /html/")

You can also modify the file path, for example: /var/www/html/test/index.php.
• The corresponding access url is ip/test/index.php

3 Visit

ip/index.php ip/index1.php on the browser page, as shown below

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