Simple and easy to understand Linux CentOS PHP7 installation tutorial

Linux CentOS system is a widely used operating system, and PHP7 is a common server-side scripting language. Combining them enables many powerful network applications. This article will introduce you to how to install PHP7 on a Linux CentOS system, with specific code examples so you can get started easily.

1. Update the system

First, make sure your CentOS system is up to date. Run the following command in the terminal to update the system:

sudo yum update

2. Install PHP7

Next, we will install PHP7 and related components. Execute the following command in the terminal:

sudo yum install epel-release yum-utils
sudo yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
sudo yum-config-manager --enable remi-php70
sudo yum install php php-cli php-fpm php-mysql php-xml php-mcrypt php-mbstring

3. Verify the installation

After the installation is completed, we can check the PHP version through the following command:

php -v

If you see something similar to the following Information, indicating that PHP7 has been successfully installed:

PHP 7.4.11 (cli) (built: Jul 29 2020 15:20:07) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies

4. Configure PHP

Now, we can perform some basic configurations on PHP. Open the php.ini file:

sudo vi /etc/php.ini

You can modify some configuration items according to your own needs, such as adjusting memory limits, upload file size limits, etc.

5. Start PHP-FPM

PHP-FPM is the abbreviation of PHP FastCGI Process Manager and is a way to process PHP scripts. Start the PHP-FPM service through the following command:

sudo systemctl start php-fpm

You can also set PHP-FPM to start automatically at boot:

sudo systemctl enable php-fpm

6. Test PHP

Finally, we can Create a simple PHP file to test whether PHP is working properly. Execute the following command in the terminal:

echo "<?php phpinfo(); ?>" > /var/www/html/info.php

Then visit http://your_server_ip/info.php in the browser, you will see the PHP information page, proving that PHP7 has been successfully installed.

So far, you have learned how to install PHP7 on Linux CentOS system. Hope this tutorial is helpful to you.

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