How to Install PHP 8.3 in RHEL 9 Linux

You have successfully installed PHP 8.3 on your RHEL 9 system. You can now start developing or hosting web applications using the latest PHP version, taking advantage of its new features and enhancements.
php -v

Step 5: Install Additional PHP Extensions (Optional)

sudo dnf update

Step 2: Enable EPEL Repository in RHEL

sudo dnf search php-*

sudo dnf module install php:remi-8.3

To install the latest version of PHP, first, you need to update your system’s package repository and install newer available packages using the dnf command.
sudo systemctl restart httpd
Or
sudo systemctl restart nginx

PHP is a popular programming language used for building dynamic web applications. With the release of PHP 8.3, developers gain access to new features and improvements.
sudo dnf install php-gd php-xml

sudo subscription-manager repos –enable codeready-builder-for-rhel-9-$(arch)-rpms
sudo dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm

Step 3: Enable Remi Repository in RHEL

sudo dnf install https://rpms.remirepo.net/enterprise/remi-release-9.rpm

Step 4: Install PHP 8.3 in RHEL

For this guide, we will be operating the system as root, if that is not the case for you, make use of the sudo command to acquire root privileges.