xref: /PHP-7.2/Zend/tests/foreach_004.phpt (revision 97fe15db)
1--TEST--
2Iterator exceptions in foreach by reference
3--FILE--
4<?php
5class IT extends ArrayIterator {
6    private $n = 0;
7
8    function __construct($trap = null) {
9    	parent::__construct([0, 1]);
10    	$this->trap = $trap;
11    }
12
13    function trap($trap) {
14    	if ($trap === $this->trap) {
15    		throw new Exception($trap);
16    	}
17    }
18
19    function rewind()  {$this->trap(__FUNCTION__); return parent::rewind();}
20    function valid()   {$this->trap(__FUNCTION__); return parent::valid();}
21    function key()     {$this->trap(__FUNCTION__); return parent::key();}
22    function next()    {$this->trap(__FUNCTION__); return parent::next();}
23}
24
25foreach(['rewind', 'valid', 'key', 'next'] as $trap) {
26	$obj = new IT($trap);
27	try {
28		// IS_CV
29		foreach ($obj as $key => &$val) echo "$val\n";
30	} catch (Exception $e) {
31		echo $e->getMessage() . "\n";
32	}
33	unset($obj);
34
35	try {
36		// IS_VAR
37		foreach (new IT($trap) as $key => &$val) echo "$val\n";
38	} catch (Exception $e) {
39		echo $e->getMessage() . "\n";
40	}
41
42	try {
43		// IS_TMP_VAR
44		foreach ((object)new IT($trap) as $key => &$val) echo "$val\n";
45	} catch (Exception $e) {
46		echo $e->getMessage() . "\n";
47	}
48}
49?>
50--EXPECT--
51rewind
52rewind
53rewind
54valid
55valid
56valid
57key
58key
59key
600
61next
620
63next
640
65next
66