1--TEST--
2Observer: Frameless calls are disabled when there are observers
3--EXTENSIONS--
4zend_test
5--INI--
6zend_test.observer.enabled=1
7--FILE--
8<?php
9function _strpos(string $str) {
10    return \strpos($str, 'o', 1);
11}
12_strpos('foo');
13?>
14--EXPECTF--
15<!-- init '%s' -->
16<!-- init _strpos() -->
17<!-- init strpos() -->
18