Thread:Project:Support desk/PHP version error when upgrading from 1.17 to 1.21/reply (5)

The environment, in which the webserver is running, is different from the environment, in which the command line is running.

While the shell uses PHP 5.3 (which is fine), the webserver uses PHP 5.2 (which is not fine). Make sure that Apache really uses PHP 5.3 and not the old 5.2.