1--TEST--
2SPL: SplHeap: isEmpty argument variation.
3--FILE--
4<?php
5class SplHeap2 extends SplHeap{
6
7  public function compare() {
8           return -parent::compare();
9       }
10}
11
12$h = new SplHeap2;
13$h->isEmpty(1);
14?>
15--EXPECTF--
16Warning: SplHeap::isEmpty() expects exactly 0 parameters, 1 given in %s
17