PHP Manual: apache_note
apache_note
Description
string apache_note ( string note_name [, string note_value] )apache_note() is an Apache-specific function which gets and sets values in a request's notes table.
Return Values
If called with one argument, it returns the current value of note note_name. If called with two arguments, it sets the value of note note_name to note_value and returns the previous value of note note_name. If the note cannot be retrieved, FALSE is returned.