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set_include_path

(PHP 4 >= 4.3.0, PHP 5)

set_include_pathSets 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.

Parameters

new_include_path

The new value for the include_path

Return Values

Returns the old include_path on success or FALSE on failure.

Examples

Example #1 set_include_path() example

<?php
// Works as of PHP 4.3.0
set_include_path('/usr/lib/pear');

// Works in all PHP versions
ini_set('include_path''/usr/lib/pear');
?>

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);
?>

See Also

PHP Manual