centos php environment setup tutorial

How to build centos php environment: first install apache and configure ServerName; then install mysql; then use the command "yum install php php-devel" to install php; finally restart the service.

Recommended: "centos Getting Started Tutorial"

CentOSBuild a PHP server The environment method

is as follows:

1. Install apache first:

yum install httpd

Configure ServerName

vi /etc/httpd/conf/httpd.conf

Change #ServerName www.example.com:80 to ServerName localhost:80

When the external machine enters the IP address of the server, you should see apache On the service page, there is no need to enter the port. Apache uses port 80 by default.

If it cannot be opened, port 80 may not be open for external access. Check:

/etc/init.d/iptables status

is followed by 80 and other information, otherwise Open it, pay attention to the position and statement state, there are two horizontal bars in front of the description -:

vim /etc/sysconfig/iptables

Join:

-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT

Then restart and save the firewall ：

service iptables restart
/etc/rc.d/init.d/iptables save

Check again whether it is enabled:

/etc/init.d/iptables status

Start apache:

/etc/init.d/httpd start

2. Install mysql:

yum install mysql mysql-server

Start mysql:

/etc/init.d/mysqld start

3. Install php

yum install php php-devel

Restart apache to make php take effect

/etc/init.d/httpd restart

At this time, you can create a PHP file in the directory:/var/www/html/

Code:

<?php phpinfo(); ?>

Then access this file, you can see the PHP Some information, the path to the php.ini configuration file can be seen on this page

Install php extension

The code is as follows:

yum install php-mysql php-gd php-imap php-ldap php-odbc php-pear php-xml php-xmlrpc

After installing the extension, you need to restart apache again

/etc/init.d/httpd restart

PHP code to test whether mysql link is successful

<?php
$con = mysql_connect("10.0.@.@@","@@","@@");
if (!$con)
{
 die(&#39;Could not connect: &#39; . mysql_error());
}
mysql_select_db("mydb", $con);
$result = mysql_query("SELECT * FROM sys_user");
while($row = mysql_fetch_array($result))
{
 echo $row[&#39;UserName&#39;] . " " . $row[&#39;PassWord&#39;] . " " . $row[&#39;id&#39;];
 echo "<br />";
}
mysql_close($con);
?>

You can pass the above code into the directory /var/www/html/
and you can see the execution situation

Installation Directory introduction

Apache points the root directory of the website to /var/www/html Directory
The default main configuration file is /etc/ httpd/conf/httpd.conf
Configuration is stored in the /etc/httpd/conf.d/ directory

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