1--TEST--
2Observer: Calls that go through zend_call_function are observed
3--SKIPIF--
4<?php if (!extension_loaded('zend-test')) die('skip: zend-test extension required'); ?>
5--INI--
6zend_test.observer.enabled=1
7zend_test.observer.observe_all=1
8--FILE--
9<?php
10function sum($carry, $item) {
11    $carry += $item;
12    return $carry;
13}
14
15$a = [1, 2, 3, 4, 5];
16// array_reduce() calls zend_call_function() under the hood
17var_dump(array_reduce($a, 'sum'));
18echo 'Done' . PHP_EOL;
19?>
20--EXPECTF--
21<!-- init '%s%eobserver_zend_call_function_%d.php' -->
22<file '%s%eobserver_zend_call_function_%d.php'>
23  <!-- init sum() -->
24  <sum>
25  </sum>
26  <sum>
27  </sum>
28  <sum>
29  </sum>
30  <sum>
31  </sum>
32  <sum>
33  </sum>
34int(15)
35Done
36</file '%s%eobserver_zend_call_function_%d.php'>
37