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Installing PHP as an Apache DSO PHP is often used on Linux/Unix platforms in conjunction with the Apache web server. When we install PHP in the Apache environment, you have three installation modes to choose from: static module, dynamic module (DSO) and CGI. I suggest you install PHP as an Apache DSO. Maintenance and upgrades in this installation mode are quite simple. For example, suppose you originally installed only PHP's database support. But a few days later you decide to add encryption functionality to PHP. It's very simple, you just type the make clean command, then add new configuration options, and then execute the make and make install commands. In this way, the new PHP module will be installed in the appropriate location on Apache. You only need to restart Apache and everything will be OK. Of course, the whole process does not require recompiling Apache. The simple steps to install a new version of Apache and install PHP as an Apache DSO are as follows: 1. Download the source code for the latest version of the Apache server software from the Apache Software Foundation site. 2. Place the code files in a suitable directory such as /usr/local/ or /opt/. 3. Use the Gunzip command to decompress the code file, and then you can get the corresponding *.tar file. 4. Type the following unpacking command to put the above tar file into a directory in the shape of apache_[version]: tar -xvf apache_[version].tar 5. Enter the /usr/local/apache_[version] directory (or the directory you specified in the above step). 6. Type the following configuration command, replacing the [path] parameter with the path you set (such as /usr/local/apache[version], etc., be careful not to follow it with a slash!), and you also need to enable the mod_so parameter to allow Apache uses DSO. ./configure --prefix=[path] --enable-module=so 7. Return to the command prompt, type the make command and wait for the command execution to complete and return to the command prompt again. 8. Type make install. At this point, the compiler can create the final directory and return to the system's command prompt. Next, install PHP: 1. Visit the download area of the PHP homepage and select the link to the latest version of the source code. 2. Place the downloaded file in an appropriate directory such as /usr/local/ or /opt/. 3. Use the Gunzip command to decompress the code file, and then you can get the corresponding *.tar file. 4. Type the following unpacking command to put the above tar file into a directory in the shape of php-[version]: tar -xvf php-[version] 5. Go to the /usr/local/php-[version] directory (or the directory you specify). You can now compile PHP DSO. In fact, you only need one necessary configuration option here--with-apxs (a file in the Apache bin directory)--however, in order to make the system configuration more comprehensive, we have also added the MySQL database here. support. ./configure --with-mysql=/[path to mysql] --with-apxs=/[path to apxs] 6. Return to the command prompt, type the make command and wait until the command execution is completed, then return to the command prompt. . 7. Type the make install command. At this time, the compiler will create the final DSO and place it in the Apache module directory. It will also modify Apache's httpd.conf configuration file for you, and then the system will return to the command prompt and wait for you to enter new instructions. Then, you can open Apache's httpd.conf configuration file and make some corrections: 1. Find the line that says ServerAdmin and add your own email address, as shown below: ServerAdmin you@yourdomain.com 2. Find the line that starts with ServerName line, change the following parameters to actual values, for example: ServerName localhost 3. Find the following paragraph: # And for PHP 4.x, use: # #AddType application/x-httpd-php .php #AddType application/x- httpd-php-source .phps Modify these configuration lines to cancel some comments added before AddType under PHP 4.0. At the same time, you should add some file extensions used by PHP. After modification, the above lines may look like As follows: # And for PHP 4.x, use: # AddType application/x-httpd-php .php .phtml AddType application/x-httpd-php-source .phps Save the above configuration file and return to the upper-level directory. Start Apache by typing: ./bin/apachectl start If no problems occur during startup, you can test the installation of Apache and PHP by creating a file called phpinfo.php that contains the following Line of code: phpinfo() ?> Save the file and place it in the Apache document root directory (htdocs), then start your web browser, type http://localhost/phpinfo.php in the browser address bar, and browse The tool will display various variables and variable values of PHP and Apache systems in a large format. If you want to reset PHP, all you need to do is execute the make clean command, then execute the ./configure command with the new configuration options, followed by make and make install. In this way, a new module will appear in the Apache modules directory, and you only need to restart Apache to load the new module. Many of the previous headaches are now gone.