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(PHP 4 >= 4.3.0, PHP 5)

set_include_path --  Sets the include_path configuration option

Description

string set_include_path ( string new_include_path )

Sets the include_path configuration option for the duration of the script. Returns the old include_path on success or FALSE on failure.

Example 1. set_include_path() example

<?php
// Works as of PHP 4.3.0
set_include_path('/inc');

// Works in all PHP versions
ini_set('include_path', '/inc');
?>

Example 2. Adding to the include path

Making use of the PATH_SEPARATOR constant, it is possible to extend the include path regardless of the operating system.

In this example we add /usr/lib/pear to the end of the existing include_path .

<?php
$path = '/usr/lib/pear';
set_include_path(get_include_path() . PATH_SEPARATOR . $path);
?>

Related Function(s)

ini_set()

get_include_path()

restore_include_path()

include()