mirror of
https://github.com/friendica/friendica
synced 2024-12-27 08:02:19 +00:00
44 lines
No EOL
1.1 KiB
PHP
44 lines
No EOL
1.1 KiB
PHP
<?php
|
|
|
|
namespace DDDBL;
|
|
|
|
/**
|
|
* simple implementation of generic singleton
|
|
* for all classes, which allows additional instances
|
|
* if needed
|
|
*
|
|
**/
|
|
|
|
class Singleton {
|
|
|
|
/**
|
|
* @param $strClass - the class we want an instance from
|
|
*
|
|
* @throws UnexpectedParameterTypeException - if given parameter is not a string
|
|
* @throws \Exception - if given class do not exists
|
|
*
|
|
* @return (object) - an instance of the given classname
|
|
*
|
|
* get a reference to the instance of the given class.
|
|
* if instance do not exists, create one. after creation
|
|
* always return reference to this reference
|
|
*
|
|
**/
|
|
static function getInstance($strClass) {
|
|
|
|
if(!is_string($strClass))
|
|
throw new UnexpectedParameterTypeException('string', $strClass);
|
|
|
|
if(!class_exists($strClass))
|
|
throw new \Exception ("class do not exists: $strClass");
|
|
|
|
static $arrObjectList = array();
|
|
|
|
if(!isset($arrObjectList[$strClass]))
|
|
$arrObjectList[$strClass] = new $strClass();
|
|
|
|
return $arrObjectList[$strClass];
|
|
|
|
}
|
|
|
|
} |