Please find the file /etc/php.ini and make the following changes to it:
extension_dir = /etc/php.d
This will enable PHP to find more configuration directives in that very directory. Other distros point to /usr/lib/php/modules instead. In each case, you should locate e.g. mysql.so in that directory.
Activate the MySQL extension via /etc/php.d/mysql.ini
; Enable mysql extension module extension=mysql.so
Activate the SNMP extension via /etc/php.d/snmp.ini
; Enable snmp extension module extension=snmp.so
If using PHP 4.3.5 or less include the following line. If using 4.3.6 or greater, you should remove this line if present.
session.save_path=/tmp
If you want to allow template importing, uncomment the following line:
file_uploads = On