Bug #72234 [Com]: Calling foreach on non-array is ignored
Edit report at https://bugs.php.net/bug.php?id=72234&edit=1
ID: 72234
Comment by: nickdnk at hotmail dot com
Reported by: nickdnk at hotmail dot com
Summary: Calling foreach on non-array is ignored
Status: Not a bug
Type: Bug
Package: *General Issues
Operating System: Windows
PHP Version: 7.0.6
Block user comment: N
Private report: N
New Comment:
But, the link clearly states (for the first form, which is what I used as example): "It [The
first form] loops over the *array* given by *array_expression*. On each iteration, the value of the
current element is assigned to $value..."
- when not iterating an array, why are we not seeing at least a warning? Would there ever be a
situation where you'd legitimately use foreach on a non-array object? If so please enlighten
me. Not a single one of the examples in the documentation for foreach use a non-array object.
Previous Comments:
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[2016-05-17 20:33:12] requinix@php.net
foreach on an object is allowed. You aren't seeing anything because the $obj is empty.
http://php.net/manual/en/control-structures.foreach.php
https://3v4l.org/CCrFo
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[2016-05-17 20:13:06] nickdnk at hotmail dot com
Description:
------------
Hello
If passing a variable (let's say a stdClass) to the foreach method, it does not produce an
error. It silently does not loop the object (since it cannot).
I'm no expert, but I'd say that at least a warning should be raised if trying to iterate a
non-array object. I'm sorry if this is intentional, but I do believe an error was raised in
5.6.
Test script:
---------------
$obj = new stdClass();
foreach ($obj as $anObj) {
error_log("nothing is output here, obviously, but no error either");
}
Expected result:
----------------
I expect an error or warning to occur, since I'm traversing a non-array.
Actual result:
--------------
Nothing happens at all.
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Edit this bug report at https://bugs.php.net/bug.php?id=72234&edit=1
Thread (3 messages)