PHP4 CGI

PHP4 CGI

The PHP CGI is a free-standing PHP interpreter. While this makes PHP available through the command line, it is less efficient than the PHP Apache Module.

NOTE: Any version of PHP prior to 4.2.2 has a known security vulnerability which can compromise your virtual server. If you are using any version prior to PHP4.2.2, we strongly encourage you to upgrade to the current version.

PHP4

To install PHP4 CGI on your virtual server, connect to your server via SSH or Telnet and do the following:

Install the PHP4 CGI by running the following command:
```
    % vinstall php4-cgi
```
When you run the vinstall command, you will be given the option to select which extensions you want to use. In order to not waste memory on your virtual server, we recommend that you only select extensions you will actually be using. If you find you need to add or remove extensions at a later time, you can manually edit the php.ini file, or use the vinstall command to change the active extensions.
Due to Security Issues the PHP4 CGI is installed at ~/usr/local/bin/php. Do the following to link the PHP4 CGI into your ~/www/cgi-bin directory.
```
    % cd ~/www/cgi-bin
    % ln ../../../bin/php.cgi php
```
Make the following additions and modifications to your web server configuration file (~/www/conf/httpd.conf).
1. Modify the DirectoryIndex line so that PHP4 files will be included as directory indices.
```
    DirectoryIndex index.php index.php4 index.php3 index.cgi index.html index.htm
```
2. Add the following lines so that all files with .php, .php3, .php4, and .phtml extensions will be redirected to the PHP4 CGI executable.
```
    Action     php4-script /cgi-bin/php
    AddHandler php4-script .php .php3 .php4 .phtml
```
3. Restart your Web Server by running the restart_apache command.
To test your PHP installation, try creating the following ~/www/htdocs/test.php4 document and viewing it in your web browser.
```
    <html>
    <body>
    <?php phpinfo(); ?>
    </body>
    </html>
```
The phpinfo() function reports the version number, as well as the features that are compiled into PHP.

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