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
Solution is simple, following this bug – the suhosin module was removed in wheezy, but not its configuration.
# dpkg -P php5-suhosin