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Date: Fri, 18 Dec 2015 12:30:50 +0100
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Subject: Re: [PHP-DEV] call_user_function_ex() affects zval value
From: francois@php.net (=?UTF-8?Q?Fran=c3=a7ois_Laupretre?=)

Hi,

Le 17/12/2015 22:52, Adam Baratz a écrit :
> Hi,
>
> I'm working on PHP7 compatibility for an extension (which I didn't write).
> I discovered an issue with a call like this:
>
> call_user_function_ex(EG(function_table), NULL, zval, &retval, 5, params,
> 0, NULL);
>
> When zval refers to a [object, string] array, its value is different after
> this call. I haven't seen this issue when zval is a string. I realize the
> context probably matters here, but I'm having trouble narrowing down what
> could be doing this. Any suggestions on how to debug this?
>
> Thanks,
> Adam
>

If your code is public, can you give a pointer to the problematic call ? 
Or at least what your 'zval' points to on return.

Regards

François