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Website Programming in PHP / MYSQL
apache_note
(PHP 4, PHP 5)
apache_note — Get and set apache request notes
Description
This function is a wrapper for Apache's table_get and table_set. It edits the table of notes that exists during a request. The table's purpose is to allow Apache modules to communicate.
The main use for apache_note() is to pass information from one module to another within the same request.
Parameters
- note_name
-
The name of the note.
- note_value
-
The value of the note.
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.
Examples
Example #1 Passing information between PHP and Perl
<?php
apache_note('name', 'Fredrik Ekengren');
// Call perl script
virtual("/perl/some_script.pl");
$result = apache_note("resultdata");
?>
# Get Apache request object
my $r = Apache->request()->main();
# Get passed data
my $name = $r->notes('name');
# some processing
# Pass result back to PHP
$r->notes('resultdata', $result);
Example #2 Logging values in access.log
<?php
apache_note('sessionID', session_id());
?>
# "%{sessionID}n" can be used in the LogFormat directive
