Install and Test PHP on Linux system

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Q. How can I install and test PHP on Linux? How do I make sure it is working on my Linux system? I am using Red Hat Fedora Core Linux.


A. PHP (PHP Hypertext Preprocessor) is an open-source, programming language. Originally designed as a high level scripting language for producing dynamic Web pages, PHP is used mainly in server-side application software.

Task: Install PHP

If you are using Fedora Core or Cent Os Linux, type the following command:
# yum install php

If you are using Debian Linux, type the following command:
# apt-get install php5

Now restart Web Server:
# /etc/init.d/httpd restart

Task: Test php

Go to /var/www/html/ directory:
# cd /var/www/html/

Create a php file – phptest.php
# vi phptest.php

Append following lines:
<?php phpinfo(); ?>

Save and close the file.

Open a web browser and type the url : or http://localhost/phptest.php or http://server-ip-address/phptest.php.

See sample output here


Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

12 comment

  1. when i try to test my php a window appears: you have chosen to open test.php which is a php scripts.. what is this means? and how to solve this problem.. thanks in advance

  2. I can’t do step 2. Restart the web service.
    There is no httpd in /etc/init.d/
    What is the wrong. I’m using Ubuntu 11.10 with fvwm-crystal

    1. httpd does not exits.
      that is because you need to install Apache web server.
      after that you may find the file exists in /etc/apache/init.d/httpd

  3. ServerName changed to:
    ServerName :80

    But explicit hostname did not work in URL only ‘localhost/phptest.php’ worked

    Using DHCP on Red Hat Enterprise Linux Workstation release 6.3 (Santiago) so I’m not sure how to specify the IP entry in /etc/hosts

    Kernel: 2.6.32-279.19.1.el6.x86_64

      1. I found a solution my dear friend, thanks for responding.
        It was my lampp installation it had problems regarding its sockets.

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