1--TEST-- 2using resource as array offset 3--INI-- 4error_reporting=8191 5--FILE-- 6<?php 7 8$fp = fopen(__FILE__, 'r'); 9 10$array = array(1,2,3,4,5,6,7); 11 12var_dump($array[$fp]); 13 14echo "Done\n"; 15?> 16--EXPECTF-- 17Notice: Resource ID#%d used as offset, casting to integer (%d) in %s on line %d 18int(%d) 19Done 20