<\/span>Creating a PHP info test page<\/span><\/h2>\n\n\n\nThis is a quick way to confirm that Apache runs PHP 8.3 and to inspect the configuration.<\/p>\n\n\n\n
<\/span>Create a simple test file in the default web root:<\/span><\/h3>\n\n\n\necho '<?php phpinfo(); ?>' | sudo tee \/var\/www\/html\/info.php\n<\/code><\/pre>\n\n\n\nReload Apache just in case:<\/p>\n\n\n\n
sudo systemctl reload apache2\n<\/code><\/pre>\n\n\n\nOpen your browser and visit:<\/p>\n\n\n\n
http://YOUR_SERVER_IP\/info.php\n<\/code><\/pre>\n\n\n\nYou should see the PHP information page that shows:<\/p>\n\n\n\n
\n- PHP Version 8.3.x<\/li>\n\n\n\n
- Loaded PHP modules and configuration<\/li>\n\n\n\n
- Apache integration details<\/li>\n<\/ul>\n\n\n\n
Important: After testing, remove this file. It exposes detailed configuration information that attackers could use.<\/p>\n\n\n\n
sudo rm \/var\/www\/html\/info.php\n<\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>Installing additional PHP 8.3 extensions<\/span><\/h2>\n\n\n\nDifferent applications need different extensions. You can search and install modules with apt<\/code>.<\/p>\n\n\n\nList available PHP 8.3 packages:<\/p>\n\n\n\n
apt search php8.3-\n<\/code><\/pre>\n\n\n\nInstall a specific extension, for example imagick<\/code> or redis<\/code>:<\/p>\n\n\n\nsudo apt install php8.3-imagick php8.3-redis -y\nsudo systemctl restart apache2\n<\/code><\/pre>\n\n\n\nVerify the module is loaded:<\/p>\n\n\n\n
php -m | grep imagick\nphp -m | grep redis\n<\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>Basic PHP 8.3 configuration for production<\/span><\/h2>\n\n\n\nMost configuration for PHP 8.3 lives in php.ini<\/code>. The path varies slightly by SAPI and Linux distribution, but on Ubuntu it is usually:<\/p>\n\n\n\n\n\/etc\/php\/8.3\/apache2\/php.ini<\/code> for Apache module<\/li>\n\n\n\n\/etc\/php\/8.3\/cli\/php.ini<\/code> for CLI<\/li>\n<\/ul>\n\n\n\nSet the correct timezone<\/p>\n\n\n\n
Open the Apache PHP configuration file:<\/p>\n\n\n\n
sudo nano \/etc\/php\/8.3\/apache2\/php.ini\n<\/code><\/pre>\n\n\n\nFind and set:<\/p>\n\n\n\n
date.timezone = \"Europe\/Berlin\"\n<\/code><\/pre>\n\n\n\nReplace with your timezone. This avoids warnings and ensures accurate date functions.<\/p>\n\n\n\n
Improve security basics<\/p>\n\n\n\n
In the same php.ini<\/code> file you can hide the PHP version:<\/p>\n\n\n\nexpose_php = Off\n<\/code><\/pre>\n\n\n\nIncrease memory or upload limits if your application needs it, for example:<\/p>\n\n\n\n
memory_limit = 256M\nupload_max_filesize = 50M\npost_max_size = 50M\n<\/code><\/pre>\n\n\n\nAfter changes, restart Apache:<\/p>\n\n\n\n
sudo systemctl restart apache2\n<\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>Optional: Using PHP 8.3 FPM with Apache instead of mod_php<\/span><\/h2>\n\n\n\nWhile libapache2-mod-php8.3<\/code> is the simplest route, many production setups prefer PHP FPM for better performance and flexibility.<\/p>\n\n\n\nInstall PHP 8.3 FPM:<\/p>\n\n\n\n
sudo apt install php8.3-fpm -y\n<\/code><\/pre>\n\n\n\nEnable the required Apache modules:<\/p>\n\n\n\n
sudo a2enmod proxy_fcgi setenvif\nsudo a2enconf php8.3-fpm\nsudo a2dismod php8.3 # if you were using libapache2-mod-php8.3\nsudo systemctl restart apache2\n<\/code><\/pre>\n\n\n\nApache will now forward PHP requests to the FPM service instead of using the embedded module.<\/p>\n\n\n\n
\n\n\n\n<\/span>Troubleshooting common PHP 8.3 + Apache issues<\/span><\/h2>\n\n\n\nPHP files download instead of execute<\/p>\n\n\n\n