--TEST-- Test function fstat() by substituting argument 1 with object values. --FILE-- new classWithToString(), 'instance of classWithoutToString' => new classWithoutToString(), ); foreach ( $variation_array as $var ) { var_dump(fstat( $var ) ); } ?> ===DONE=== --EXPECTF-- Error: 2 - fstat() expects parameter 1 to be resource, object given, %s(%d) bool(false) Error: 2 - fstat() expects parameter 1 to be resource, object given, %s(%d) bool(false) ===DONE===