I have updated my php from 5.3.3 to 5.4.31. I have a Debian 6 Squeeze. PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20100525/apc.so' - /usr/lib/php5/20100525/apc.so: cannot open shared object file: No such file or directory in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20100525/suhosin.so' - /usr/lib/php5/20100525/suhosin.so: cannot open shared object file: No such file or directory in Unknown on line 0 During the installation, the system ask me if I want to keep the actual php.ini or put the new one. I said to keep the actual one. Now, I have this 2 errors when I restart Apache.. What should I do to solve them?