Edit report at http://bugs.php.net/bug.php?id=53109&edit=1
ID: 53109
User updated by: ibber_of_crew42 at hotmail dot com
Reported by: ibber_of_crew42 at hotmail dot com
Summary: htmlentities and htmlspecialchars problems with
__toString
-Status: Feedback
+Status: Open
Type: Bug
Package: Strings related
Operating System: Irrelevant
PHP Version: 5.2.14
Block user comment: N
New Comment:
Sadly, I cannot reproduce this. The circumstances under which I was able
to
produce it were very complicated.
As you mentioned it may have been provoked by some memory corruption
occuring
before the call. I repeatedly ran into the well known Segmentation Fault
that
the preg_-functions can produce, around the time this was occuring. It
may be
that the preg_-functions operating around the edge of seg faulting may
actually
corrupt their output?
Regarding the warning you are able to produce, by passing object as
argument
number 2: "htmlentities() expects parameter 2 to be long, object given".
This
must come from the underlying C function. PHP has no data type called
long, as
far as I know? That's a bug, right?
Either way, I'm fine with you closing this bug report. It should be a
very rare
case.
Previous Comments:
------------------------------------------------------------------------
[2010-10-20 22:27:02] [email protected]
By the way, your report sounds like there's some kind of memory
corruption happening, so the problem is possibly something happening
before the call to htmlentities. It would be great if you could
reproduce this.
------------------------------------------------------------------------
[2010-10-20 22:07:46] [email protected]
Thanks for your report.
However, I can't reproduce this with:
<?php
class A {
function __tostring() { return "aaa"; }
}
echo htmlspecialchars(new A());
Passing it to parameter 2, gives a message telling parameter 2 should be
long, object given.
There's nothing out of the ordinary with the implementation of
htmlentities/htmlspecialchars, so unless you have a way to reproduce
this, I'll close it as bogus in the next few days.
------------------------------------------------------------------------
[2010-10-20 08:36:38] ibber_of_crew42 at hotmail dot com
Description:
------------
When passing an instance of a class implementing __toString, as the
first argument
to htmlentities or htmlspecialchars, the object is apparently not always
(maybe
never?) cast to string before being pushed on the stack.
In some cases this will cause php to erronously output that the function
requires
parameter 2 to be long, unknown given. This seems to be an error from
the
underlying C function?
Sadly, I cannot provide a test script to reproduce the behaviour, but it
should be
easy enough to check whether my theory is correct.
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=53109&edit=1
