The global configuration file,
php3.ini, has changed its name to
php.ini.
For the Apache configuration file, there are slightly
more changes. The MIME types recognized by the PHP module
have changed.
application/x-httpd-php3 -- application/x-httpd-php application/x-httpd-php3-source -- application/x-httpd-php-source |
You can make your configuration files work with both
versions of PHP (depending on which one is currently compiled
into the server), using the following syntax:
AddType application/x-httpd-php3 .php3 AddType application/x-httpd-php3-source .php3s AddType application/x-httpd-php .php AddType application/x-httpd-php-source .phps |
In addition, the PHP directive names for Apache have
changed.
Starting with PHP 4.0, there are only four Apache
directives that relate to PHP:
php_value [PHP directive name] [value] php_flag [PHP directive name] [On|Off] php_admin_value [PHP directive name] [value] php_admin_flag [PHP directive name] [On|Off] |
There are two differences between the Admin values and
the non admin values:
Admin values (or flags) can only appear in the
server-wide apache configuration files (e.g.,
httpd.conf).
Standard values (or flags) cannot control certain PHP
directives, for example - safe mode (if you could
override safe mode settings in .htaccess files, it would
defeat safe-mode's purpose). In contrast, Admin values
can modify the value of any PHP directive.
To make the transition process easier, PHP 4 is bundled
with scripts that automatically convert your Apache
configuration and .htaccess files to work with both PHP 3 and
PHP 4. These scripts do NOT convert the mime type lines! You
have to convert these yourself.
To convert your Apache configuration files, run the
apconf-conv.sh script (available in the scripts/apache/
directory). For example:
Your original configuration file will be saved in
httpd.conf.orig.
To convert your .htaccess files, run the
aphtaccess-conv.sh script (available in the scripts/apache/
directory as well):
Likewise, your old .htaccess files will be saved with an
.orig prefix.
The conversion scripts require awk to be installed.