The initial PHP setup and configuration process is controlled by the use of the commandline options of the configure script. You could get a list of all available options along with short explanations running ./configure --help. Our manual documents the different options separately. You will find the core options in the appendix, while the different extension specific options are descibed on the reference pages.

When PHP is configured, you are ready to build the module and/or executables. The command make should take care of this. If it fails and you can't figure out why, see the Problems section.

Apache 1.3.x on Unix systems

This section contains notes and hints specific to Apache installs of PHP on Unix platforms. We also have instructions and notes for Apache 2 on a separate page.

You can select arguments to add to the configure on line 10 below from the list of core configure options and from extension specific options described at the respective places in the manual. The version numbers have been omitted here, to ensure the instructions are not incorrect. You will need to replace the 'xxx' here with the correct values from your files.

1. gunzip apache_xxx.tar.gz
2. tar -xvf apache_xxx.tar
3. gunzip php-xxx.tar.gz
4. tar -xvf php-xxx.tar
5. cd apache_xxx
6. ./configure --prefix=/www --enable-module=so
7. make
8. make install
9. cd ../php-xxx
10. Now, configure your PHP. This is where you customize your PHP with various options, like which extensions will be enabled. Do a ./configure --help for a list of available options. In our example we'll do a simple configure with Apache 1 and MySQL support. Your path to apxs may differ from our example.
./configure --with-mysql --with-apxs=/www/bin/apxs
11. make
12. make install
If you decide to change your configure options after installation, you only need to repeat the last three steps. You only need to restart apache for the new module to take effect. A recompile of Apache is not needed.
Note that unless told otherwise, 'make install' will also install PEAR, various PHP tools such as phpize, install the PHP CLI, and more.
13. Setup your php.ini file:
cp php.ini-dist /usr/local/lib/php.ini
You may edit your .ini file to set PHP options. If you prefer your php.ini in another location, use --with-config-file-path=/some/path in step 10.
If you instead choose php.ini-recommended, be certain to read the list of changes within, as they affect how PHP behaves.
14. Edit your httpd.conf to load the PHP module. The path on the right hand side of the LoadModule statement must point to the path of the PHP module on your system. The make install from above may have already added this for you, but be sure to check.
For PHP4:
LoadModule php4_module libexec/libphp4.so
For PHP5:
LoadModule php5_module libexec/libphp5.so
15. And in the AddModule section of httpd.conf, somewhere under the ClearModuleList, add this:
For PHP4:
AddModule mod_php4.c
For PHP5:
AddModule mod_php5.c
16. Tell Apache to parse certain extensions as PHP. For example, let's have Apache parse the .php extension as PHP. You could have any extension(s) parse as PHP by simply adding more, with each separated by a space. We'll add .phtml to demonstrate.
AddType application/x-httpd-php .php .phtml
It's also common to setup the .phps extension to show highlighted PHP source, this can be done with:
AddType application/x-httpd-php-source .phps
17. Use your normal procedure for starting the Apache server. (You must stop and restart the server, not just cause the server to reload by using a HUP or USR1 signal.)

Alternatively, to install PHP as a static object:

1. gunzip -c apache_1.3.x.tar.gz | tar xf -
2. cd apache_1.3.x
3. ./configure
4. cd ..
5. gunzip -c php-4.x.y.tar.gz | tar xf -
6. cd php-4.x.y
7. ./configure --with-mysql --with-apache=../apache_1.3.x
8. make
9. make install
10. cd ../apache_1.3.x
11. ./configure --prefix=/www --activate-module=src/modules/php4/libphp4.a (The above line is correct! Yes, we know libphp4.a does not exist at this stage. It isn't supposed to. It will be created.)
12. make (you should now have an httpd binary which you can copy to your Apache bin dir if it is your first install then you need to "make install" as well)
13. cd ../php-4.x.y
14. cp php.ini-dist /usr/local/lib/php.ini
15. You can edit /usr/local/lib/php.ini file to set PHP options. Edit your httpd.conf or srm.conf file and add: AddType application/x-httpd-php .php

Depending on your Apache install and Unix variant, there are many possible ways to stop and restart the server. Below are some typical lines used in restarting the server, for different apache/unix installations. You should replace /path/to/ with the path to these applications on your systems.

1. Several Linux and SysV variants:
/etc/rc.d/init.d/httpd restart
2. Using apachectl scripts:
/path/to/apachectl stop
/path/to/apachectl start
3. httpdctl and httpsdctl (Using OpenSSL), similar to apachectl:
/path/to/httpsdctl stop
/path/to/httpsdctl start
4. Using mod_ssl, or another SSL server, you may want to manually
stop and start:
/path/to/apachectl stop
/path/to/apachectl startssl

The locations of the apachectl and http(s)dctl binaries often vary. If your system has locate or whereis or which commands, these can assist you in finding your server control programs.

Different examples of compiling PHP for apache are as follows:

./configure --with-apxs --with-pgsql

This will create a libphp4.so shared library that is loaded into Apache using a LoadModule line in Apache's httpd.conf file. The PostgreSQL support is embedded into this libphp4.so library.

./configure --with-apxs --with-pgsql=shared

This will create a libphp4.so shared library for Apache, but it will also create a pgsql.so shared library that is loaded into PHP either by using the extension directive in php.ini file or by loading it explicitly in a script using the dl() function.

./configure --with-apache=/path/to/apache_source --with-pgsql

This will create a libmodphp4.a library, a mod_php4.c and some accompanying files and copy this into the src/modules/php4 directory in the Apache source tree. Then you compile Apache using --activate-module=src/modules/php4/libphp4.a and the Apache build system will create libphp4.a and link it statically into the httpd binary. The PostgreSQL support is included directly into this httpd binary, so the final result here is a single httpd binary that includes all of Apache and all of PHP.

./configure --with-apache=/path/to/apache_source --with-pgsql=shared

Same as before, except instead of including PostgreSQL support directly into the final httpd you will get a pgsql.so shared library that you can load into PHP from either the php.ini file or directly using dl().

When choosing to build PHP in different ways, you should consider the advantages and drawbacks of each method. Building as a shared object will mean that you can compile apache separately, and don't have to recompile everything as you add to, or change, PHP. Building PHP into apache (static method) means that PHP will load and run faster. For more information, see the Apache webpage on DSO support.

Замечание: Apache's default httpd.conf currently ships with a section that looks like this:

User nobody
Group "#-1"

Unless you change that to "Group nogroup" or something like that ("Group daemon" is also very common) PHP will not be able to open files.

Замечание: Make sure you specify the installed version of apxs when using --with-apxs=/path/to/apxs. You must NOT use the apxs version that is in the apache sources but the one that is actually installed on your system.

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Apache 2.0 on Unix systems