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set_include_path

(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); ?>

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