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| Introduction
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There are several different ways to install PHP4
on a Virtual Private Server. The best way is to install the mod_php4
Apache Module. Another
less desirable method is to install The
PHP4 CGI to which PHP4 files are redirected by your web server.
| NOTE:
PHP no longer creates GIF images via lib-gd. Due to patent
restrictions on the GIF compression algorithm we can no longer
support it. The PNG
Image Format has support for alpha channels, gamma
correction, has better compression than GIF compression and
supports 48-bit color depth (versus 8-bit color GIF images),
and is now widely supported by nearly all modern web browsers.
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| Installation
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Connect to your Virtual Private Server via Telnet
or SSH and do the following.
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Install the PHP4 Apache
modules. Follow the directions that correspond to your Virtual
Private Server O/S.
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 Private Server, we
recomend 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.
The installation process should configure your web server to dynamically load the PHP4
Apache module. Check to make sure the following
line is in your web server configuration file (~/www/conf/httpd.conf).
LoadModule php4_module modules/mod_php4-4.3.4.so
NOTE: In versions of PHP4.2.2 and later, one of the default
settings has been changed. This has been found to affect several commonly used scripts,
including TWIG. If you are using TWIG or are having trouble with scripts that worked without
problems prior to upgrading to version 4.2.2, create or edit the file named php.ini in
the ~/usr/local/lib/ directory of your Virtual Private Server. The php.ini
file needs to contain at least this line:
register_globals = On
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Make the following
additions and modifications to your Virtual Private Servers
web server configuration file (~/www/conf/httpd.conf).
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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
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Add the following
lines so that all files with .php, .php3,
.php4, and .phtml extensions will be redirected
to the PHP4 Apache module.
AddType application/x-httpd-php .php .php3 .php4 .phtml
AddType application/x-httpd-php-source .phps
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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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