Using pear Net_IPv4 one can find if a given IP address is in provided Network range or on the subnet.
Using simple year could be automatically updated in Copyright information.
Using current_user_can and couple of other available variables, comment "Edit" can be restricted.
"LoadModule", "DirectoryIndex" and "AddType" are all what is needed to ensure that Apache recognizes the PHP files on any OS. Here we discuss the Windows config...
PHP allows to unset or undefine a variable by using the "unset" method.
"php -m" provides the list of all compiled in modules.