Let’s take a closer look at adding apache_note to PHP. Bobcares can manage Apache server issues with our Server Management Services.

How to add apache_note to PHP?

Apache is an open-source Web server that deploys about 30 percent of the Internet’s content, second only to Nginx. In its capacity as a Web server, Apache is in charge of responding to directory (HTTP) requests from Internet users and sending them the files and Web pages as per request. The features of Apache are compatible with a lot of the software and code on the Web.

The apache_note function modifies the table of notes that exists during a request. The table’s purpose is to allow communication between Apache modules. This function also encompasses Apache’s table get and table set functions.

The following is the syntax to add the function in PHP:

apache_note(string $note_name, ?string $note_value = null): string|false

The parameters note_name and note_value represent the name of the note and the value of the note respectively.

Return Values: If note_value is omitted or null, it returns the current value of note note_name. Otherwise, it sets the value of note note_name to note_value and returns the previous value of note note_name. If the note cannot restore, then false is returned.

Examples of adding apache_note on PHP

1.

<?php

# 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);

2.

 /**
  * Logs user information to webserver logs.
  *
  * @param string $user   user name
  * @param string $status status message
  *
  * @return void
  */
 public static function logUser($user, $status = 'ok')
 {
     if (function_exists('apache_note')) {
         apache_note('userID', $user);
         apache_note('userStatus', $status);
     }
     if (function_exists('syslog') && $status != 'ok') {
         @openlog('phpMyAdmin', LOG_NDELAY | LOG_PID, LOG_AUTHPRIV);
         @syslog(LOG_WARNING, 'user denied: ' . $user . ' (' . $status . ') from ' . PMA_getIp());
     }
 }

3.

<?php

# "%{sessionID}n" can be used in the LogFormat directive

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Conclusion

To conclude, we have provided a simple method from our Support team to add the apache_note function to PHP along with some real-world examples.