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php-e107/e107_handlers/override_class.php
2006-12-02 04:36:16 +00:00

65 lines
1.6 KiB
PHP

<?php
/*
+ ----------------------------------------------------------------------------+
| e107 website system
|
| ©Steve Dunstan 2001-2002
| http://e107.org
| jalist@e107.org
|
| Released under the terms and conditions of the
| GNU General Public License (http://gnu.org).
|
| $Source: /cvs_backup/e107_0.8/e107_handlers/override_class.php,v $
| $Revision: 1.1.1.1 $
| $Date: 2006-12-02 04:33:47 $
| $Author: mcfly_e107 $
+----------------------------------------------------------------------------+
*/
if (!defined('e107_INIT')) { exit; }
/*
* USAGE
* In user code, to override an existing function...
*
* $override->override_function('original_func_name','mynew_function_name',['optional_include_file_from_root']);
*
* In e107 code...
* if ($over_func_name = $override->override_check('original_func_name')) {
* $result=call_user_func($over_func_name, params...);
* }
*
*/
class override {
var $functions = array();
var $includes = array();
function override_function($override, $function, $include) {
if ($include) {
$this->includes[$override] = $include;
}
else if (isset($this->includes[$override])) {
unset($this->includes[$override]);
}
$this->functions[$override] = $function;
}
function override_check($override) {
if (isset($this->includes[$override])) {
if (file_exists($this->includes[$override])) {
include_once($this->includes[$override]);
}
if (function_exists($this->functions[$override])) {
return $this->functions[$override];
} else {
return false;
}
} else {
return false;
}
}
}
?>