Build php on the server

With the rapid development and popularity of the Internet, websites have become an indispensable part of people's daily lives. As an efficient and scalable server-side programming language, PHP has become the preferred development language for many websites. Building a PHP server is an important part of website development. The following will introduce in detail how to build PHP on the server.

1. Choose a suitable server

Before building a PHP server, we need to choose a suitable server. The choice of server should be considered based on the expected website traffic, the configuration required by the website, scalability, etc. Generally speaking, if the website is expected to have a large number of visits, we need to choose a server with higher configuration to ensure that the website runs smoothly. In addition, the server's operating system also needs to be selected based on the developer's experience and proficiency. Common server operating systems include Linux, Ubuntu, etc.

2. Install the Apache server and PHP

After selecting the server, we need to install the Apache server and PHP. Apache is one of the most popular web server software currently and is an open source software. Installing Apache is very simple and can be done via the command line or graphical interface. Taking the Linux system as an example, we can install Apache through the following command:

sudo apt-get update

sudo apt-get install apache2

After the installation is complete, we can Enter the server's IP address in the browser to confirm whether Apache is installed successfully. If successful, we will see Apache's default welcome page.

Next, we need to install PHP. PHP is a programming language that works with the Apache server to allow us to create web pages dynamically. Installing PHP is also very simple. We can install it through the following commands:

sudo apt-get install php libapache2-mod-php

After the installation is completed, we need to restart the Apache server to ensure that PHP is Loaded correctly. You can restart Apache through the following command:

sudo systemctl restart apache2

3. Test whether PHP is installed successfully

After installing Apache and PHP, we need to confirm whether PHP is successful Install. We can verify whether it is successful by creating a new PHP file in the /var/www/html directory. Create a PHP file with the following command:

sudo vi /var/www/html/info.php

Copy the following code into the file:

phpinfo();

?>

After saving and exiting the file, we can enter the IP address of the server in the browser and add the file name info.php , for example: http://xxx.xxx.xxx.xxx/info.php, if we see some PHP information, then PHP has been installed successfully.

4. Configure PHP and Apache servers

After successfully installing PHP and Apache, we need to perform some configurations to ensure the security and normal operation of the server. The following lists some common configuration items:

1. Hide PHP version number and server information

To ensure the security of the server, we need to hide the PHP version number and server information Information hidden. We can achieve this by modifying the php.ini file. We can open the php.ini file using the following command:

sudo more /etc/php/7.4/apache2/php.ini

Then we need to find the following line:

expose_php = On

Change "On" to "Off" to hide the PHP version number.

Fixing the Apache server information can also be achieved by modifying the httpd.conf file. In that file we can find the following lines:

ServerSignature On

ServerTokens OS

Change "On" to "Off" and "OS" to " Prod" to hide Apache server information.

2. Configure Apache's directory access and access control

The Apache server allows everyone to access the /var/www/html directory by default, which may cause security issues. We can implement directory access and access control by modifying Apache's configuration file httpd.conf.

Open the httpd.conf file:

sudo more /etc/apache2/httpd.conf

Add the following statements in the file:

Options -Indexes

This statement will close the directory listing and only users with access rights can access the directory.

3. Configuring PHP error reporting

PHP error reporting is very important for program development and debugging. We can specify the level of PHP error reporting by modifying the php.ini file:

error_reporting = E_ALL

display_errors = On

In addition, we can also output PHP errors to Customized log files for better debugging.

error_log = /var/log/php_errors.log

Conclusion

The above is the basic process and skills of building a PHP server. Although this is only a small part of building a PHP server, the knowledge and skills it accumulates are very important, especially for developers who need to build PHP on the server. I hope this article can provide you with some help and let you better understand how to build PHP on the server.

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