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<?class A_Class {		public static function doTest() {		$test1 = "normalFunction";		$test2 = "A_Class::A_Method";				// no errors		A_Class::A_Method(); 		$test1();				// Fatal error: Call to undefined function LeadChecker::checkShortName() in C:\wamp\www\LeadChecker\test.php on line 12		$test2(); 	}		public static function A_Method() {	}}function normalFunction() {}A_Class::doTest();?>