set_include_path
(PHP 4 >= 4.3.0, PHP 5)
set_include_path — Sets the include_path configuration option
说明
string set_include_path ( string $new_include_path )Sets the include_path configuration option for the duration of the script.
参数
- new_include_path
-
The new value for the include_path
返回值
Returns the old include_path on success 或者在失败时返回 FALSE.
范例
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);
?>
参见
- 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
