1--TEST--
2When + or - are used on yield, they must be unary (and not binary) (Bug #69160)
3--FILE--
4<?php
5function gen() {
6	var_dump(yield +1);
7	var_dump(yield -1);
8	var_dump(yield * -1); // other ops still should behave normally
9}
10
11for ($gen = gen(); $gen->valid(); $gen->send(1)) {
12	echo "\n";
13	var_dump($gen->current());
14}
15?>
16--EXPECT--
17
18int(1)
19int(1)
20
21int(-1)
22int(1)
23
24NULL
25int(-1)
26
27