restore_include_path
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.
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.
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('/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 . $path);
?>
See Also
- ini_set() - Sets the value of a configuration option
- get_include_path() - Gets the current include_path configuration option
- restore_include_path() - Restores the value of the include_path configuration option
- include() - include
add a note
User Contributed Notesset_include_path
parks at vecinc dot com
27-Jul-2009 01:44
27-Jul-2009 01:44
ChanibaL.net
07-Jan-2009 07:21
07-Jan-2009 07:21
The files are included in order of the inclusion path, in this example, the directory structure is as follows:
.
|-- index.php
|-- t1
| |-- a
| `-- b
`-- t2
|-- b
`-- c
<?php
set_include_path('t1'.PATH_SEPARATOR.'t2');
include 'a'; // includes from T1
include 'b'; // includes from T1
include 'c'; // includes from T2
?>
Note that the include path affects only include/require functions.
<?php
var_dump(file_exists('a')); // false
var_dump(fopen('b', 'r')); // file not found
?>
ricardo dot ferro at gmail dot com
14-May-2008 01:16
14-May-2008 01:16
Two functions to help:
<?php
function add_include_path ($path)
{
foreach (func_get_args() AS $path)
{
if (!file_exists($path) OR (file_exists($path) && filetype($path) !== 'dir'))
{
trigger_error("Include path '{$path}' not exists", E_USER_WARNING);
continue;
}
$paths = explode(PATH_SEPARATOR, get_include_path());
if (array_search($path, $paths) === false)
array_push($paths, $path);
set_include_path(implode(PATH_SEPARATOR, $paths));
}
}
function remove_include_path ($path)
{
foreach (func_get_args() AS $path)
{
$paths = explode(PATH_SEPARATOR, get_include_path());
if (($k = array_search($path, $paths)) !== false)
unset($paths[$k]);
else
continue;
if (!count($paths))
{
trigger_error("Include path '{$path}' can not be removed because it is the only", E_USER_NOTICE);
continue;
}
set_include_path(implode(PATH_SEPARATOR, $paths));
}
}
?>
chris-r3i
06-Mar-2007 04:35
06-Mar-2007 04:35
Can be useful to check the value of the constant PATH_SEPARATOR.
<?php
if ( ! defined( "PATH_SEPARATOR" ) ) {
if ( strpos( $_ENV[ "OS" ], "Win" ) !== false )
define( "PATH_SEPARATOR", ";" );
else 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
koenig at electronova dot net
02-Oct-2006 11:24
02-Oct-2006 11:24
You can also add several paths in one set_include_path separating them by ':'.
ex : set_include_path('/home/mysite/includes1:/home/mysite/includes2')
junya at xs4all dot nl
28-Jan-2005 07:41
28-Jan-2005 07:41
When you use .htaccess to set the include path, don't forget Apache directive 'AllowOverride Options' or 'AllowOverride All' is also needed.
df a t dougfelton d o t c o m
25-Jan-2005 09:37
25-Jan-2005 09:37
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.
r dot s dot goldsmith at far-blue dot co dot uk
08-Dec-2004 05:23
08-Dec-2004 05:23
If you want to set the paths php uses to find included files on a directory by directory level, you can do so in Apache's .htaccess file. Add the line:
php_value include_path "<first path to look>:<second path>:<etc>:."
to the .htaccess file. This will replace any paths set in your environment or the php.ini file so remember to include the path to php's own libraries as, usually, the first option!
V.useful tip given to me by the 'php guy' at Edinburgh Uni's Computing Support.