Yaf_Loader::import
PHP function
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(Yaf >=1.0.0)
Load a PHP script
Description
Yaf_Loader::import(string $file): bool
Load a PHP script file once. If the file is not an absolute path, it is looked up under the local library directory.
A file is only included once; calling Yaf_Loader::import again with the same file returns true without re-including it.
Parameters
fileThe file to load.
Return Values
Returns true on success (including when the file was already loaded), or false on failure.
Examples
Yaf_Loader::import example
php
<?php
class Bootstrap extends Yaf_Bootstrap_Abstract
{
public function _initHelpers()
{
/* a relative path is looked up under the library
* directory, i.e. APPLICATION_PATH/library/functions/format.php */
Yaf_Loader::import("functions/format.php");
}
}
?>A file is imported only once
php
<?php
/* an absolute path is used as-is */
Yaf_Loader::import("/var/www/shop/application/library/Legacy/csv_export.php");
/* importing the same file again does nothing and returns true */
var_dump(
Yaf_Loader::import("/var/www/shop/application/library/Legacy/csv_export.php")
);
?>The above example will output something similar to:
output
bool(true)See Also
Yaf_Loader::autoload