PHP 7.4.9 Released!


(PHP 4 >= 4.3.0, PHP 5, PHP 7)

set_include_pathSetzt die Konfigurationsoption include_path


set_include_path ( string $new_include_path ) : string

Setzt die include_path Konfigurationsoption für die Dauer dieser Script-Ausführung.



Der neue Wert für den include_path


Gibt bei Erfolg den alten include_path zurückIm Fehlerfall wird FALSE zurückgegeben..


Beispiel #1 set_include_path()-Beispiel


// Oder mit ini_set()

Beispiel #2 Den include-path erweitern

Wenn man die PATH_SEPARATOR Konstante verwendet, ist es möglich, den include_path ohne Kenntnis des verwendeten Betriebssystems zu erweitern.

In diesem Beispiel fügen wir /usr/lib/pear an das Ende des vorhandenen include_path an.

set_include_path(get_include_path() . PATH_SEPARATOR $path);

Siehe auch

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User Contributed Notes 6 notes

parks at vecinc dot com
11 years ago
If you find that this function is failing for you, and you're not sure why, you may have set your php include path in your sites's conf file in Apache  (this may be true of .htaccess as well)

So to get it to work, comment out any "php_value include_path" type lines in your Apache conf file, and you should be able to set it now in your php code.
13 years ago
Can be useful to check the value of the constant PATH_SEPARATOR.

if ( ! defined( "PATH_SEPARATOR" ) ) {
  if (
strpos( $_ENV[ "OS" ], "Win" ) !== false )
define( "PATH_SEPARATOR", ";" );
define( "PATH_SEPARATOR", ":" );

For older versions of php, PATH_SEPARATOR is not defined.
If it is so, we must check what kind of OS is on the web-server and define PATH_SEPARATOR properly
df a t dougfelton d o t c o m
15 years ago
In order to use .htaccess files to set the include path, PHP must be installed as an Apache module. If PHP is compiled as a CGI binary, you can set the include path in a custom php.ini file (if, for example, you're being hosted somewhere and don't have access to the main php.ini file.  Note that custom php.ini files don't affect subdirectories in the way that .htaccess files do, so you'll need to put your custom php.ini file in any subdirectories as well.
till at etill dot net
5 years ago
It appears that relative paths are allowed:

set_include_path( '..' . DIRECTORY_SEPARATOR . 'source');
require_once( 'Foo.class.php');
cloxy at cloxy dot com
8 years ago
If you want to include files with their absolute path without changing the current include path, you can use the magic constant __DIR__ . For example:

<?php include(__DIR__.'/file.php'); ?>

It is available since PHP 5.3.
koenig at electronova dot net
13 years ago
You can also add several paths in one set_include_path separating them by ':'.
ex : set_include_path('/home/mysite/includes1:/home/mysite/includes2')
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