1--TEST--
2Ensure an interface may not shadow an inherited constant.
3--FILE--
4<?php
5interface I1 {
6    const FOO = 10;
7}
8
9interface I2 extends I1 {
10    const FOO = 10;
11}
12
13echo "Done\n";
14?>
15--EXPECTF--
16Fatal error: Cannot inherit previously-inherited or override constant FOO from interface I1 in %s on line 6
17