avoid warning
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		| @@ -102,7 +102,11 @@ class PluginManager { | |||||||
| 		if (!class_exists($pluginClass, false)) { | 		if (!class_exists($pluginClass, false)) { | ||||||
| 			return false; | 			return false; | ||||||
| 		} | 		} | ||||||
| 		if (!in_array(Plugin::PLUGIN_INTERFACE, class_implements($pluginClass, false))) { | 		$interfaces = class_implements($pluginClass, false); | ||||||
|  | 		if (!$interfaces) { | ||||||
|  | 			return false; | ||||||
|  | 		} | ||||||
|  | 		if (!in_array(Plugin::PLUGIN_INTERFACE, $interfaces)) { | ||||||
| 			return false; | 			return false; | ||||||
| 		} | 		} | ||||||
| 		return true; | 		return true; | ||||||
|   | |||||||
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