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<?php |
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/** |
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* Class LP_Abstract_Singleton |
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*/ |
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abstract class LP_Abstract_Singleton { |
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|
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/** |
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* Array of singleton classes. |
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* |
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* @var array |
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*/ |
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protected static $instances = array(); |
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|
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/** |
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* LP_Abstract_Singleton constructor. |
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*/ |
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protected function __construct() { |
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} |
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|
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/** |
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* @return mixed |
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*/ |
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public static function instance() { |
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$name = self::_get_called_class(); |
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|
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if ( false === $name ) { |
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return false; |
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} |
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|
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if ( empty( self::$instances[ $name ] ) ) { |
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self::$instances[ $name ] = new $name(); |
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} |
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|
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return self::$instances[ $name ]; |
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} |
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|
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/** |
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* @return bool|string |
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*/ |
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protected static function _get_called_class() { |
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if ( function_exists( 'get_called_class' ) ) { |
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return get_called_class(); |
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} |
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|
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$backtrace = debug_backtrace(); |
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|
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if ( empty( $backtrace[2] ) ) { |
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return false; |
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} |
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|
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if ( empty( $backtrace[2]['args'][0] ) ) { |
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return false; |
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} |
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|
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return $backtrace[2]['args'][0]; |
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} |
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} |
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|
