Apache
Executable PHP extensions
To identify which PHP extensions Apache is executing, you can search your configuration files:
grep -R -B1 "httpd-php" /etc/apache2Common configuration locations include:
/etc/apache2/mods-available/php5.conf
/etc/apache2/mods-enabled/php5.conf
/etc/apache2/mods-available/php7.3.conf
/etc/apache2/mods-enabled/php7.3.conf