PHP set_include_path Function Settings include_path configuration options _php Instance

The Set_include_path () function can dynamically change PHP's include_path parameters in a PHP program, which is a string, and multiple different directories can be concatenated together as a parameter--separate directories using a directory split symbol, In a Unix-like system, this delimiter is ":" In the Windows system this delimiter is ";", so PHP provides a constant path_separator to represent this delimiter in the current system.

set_include_path-Set Include_path configuration options

Description

String Set_include_path (String $new _include_path)

Sets the configuration options for the Include_path runtime for the current script.

Parameters

New_include_path

Include_path the new value.

return value

Returns an old include_path on success or returns FALSE on failure.

Instance One

<?php
///from PHP 4.3.0 available
set_include_path ('/usr/lib/pear ');
ini_set (' include_path ', '/usr/lib/pear ') are available in all versions of PHP.
>
 

Example Two

Add to include path

Use constant Path_separator to extend include PATH across platforms.

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

<?php
$path = '/usr/lib/pear ';
Set_include_path (Get_include_path (). Path_separator. $path);
? >

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