Re: I have two identical keys in an array.

I think ypur -1 is being treated as text

Sent from my iPhone

> On Mar 6, 2022, at 2:57 PM, Andrey Repin <[email protected]> wrote:
> 
> Greetings, Romain Moyne.
> In reply to Your message dated Saturday, March 5, 2022, 16:20:24,
> 
>> I did some more tests this night.
> 
>> here is my code
> 
>> var_dump($property['id_hash']);
>> reset($property['id_hash']);
>> $k1 = key($property['id_hash']);
>> end($property['id_hash']);
>> $k2 = key($property['id_hash']);
>> echo PHP_EOL;
>> var_dump($k1 === $k2);
>> echo "hex k1=".bin2hex($k1).PHP_EOL;
>> echo "hex k2=".bin2hex($k2).PHP_EOL;
>> echo PHP_EOL."---".PHP_EOL;
> 
>> here is the result :
> 
>> array(3) {
>>  [-1]=>
>>  array(0) {
>>  }
>>  [26]=>
>>  array(1) {
>>    [0]=>
>>    int(10588090)
>>  }
>>  [-1]=>
>>  array(1) {
>>    [0]=>
>>    int(10588090)
>>  }
>> }
> 
> But where is the code that building the array?…
> 
> 
>> bool(true)
>> hex k1=2d31
>> hex k2=2d31
> 
>> it's nuts. I don't understand. It started to happen when I upgrade from php
>> 7.2 to php 8.0
>> I am running the latest 8.0.16 php version.
> 
>> the fact is I can't reproduce it, it happens after a few iteration around
>> items. Sometimes it happens, sometimes not.
> 
> Do you get this array from a call to some extension function perhaps?
> 
>>> On Fri, 4 Mar 2022 at 20:15, AllenJB <[email protected]> wrote:
>> 
>>>> 
>>> On 04/03/2022 15:34, Romain Moyne wrote:
>>>> Hi,
>>>> 
>>>> working with php 8.0.16, i am meeting a hard bug I can't really explain.
>>>> One of my script populates an array and doing a var_dump I have that :
>>>> 
>>>> Notice the duplicate -1 key. It should not exist as php should erase
>>>> the previous key.
>>>> 
>>>> array(3) {
>>>>  [-1]=>
>>>>  array(1) {
>>>>    [0]=>
>>>>    int(10585779)
>>>>  }
>>>>  [18]=>
>>>>  array(2) {
>>>>    [0]=>
>>>>    int(10585779)
>>>>    [1]=>
>>>>    int(10586274)
>>>>  }
>>>>  [-1]=>
>>>>  array(1) {
>>>>    [0]=>
>>>>    int(10586274)
>>>>  }
>>>> }
>>>> 
>>>> 
>>>> And when doing a json_encode of that, I get that :
>>>> "id_hash":{"-1":[10585779],"18":[10585779,10586274],"-1":[10586274]}
>>>> 
>>>> 
>>>> I suspected a utf8 misencoding, but it seems it's not.
>>>> 
>>>> Any thoughts?
>>> 
>>> My best guess would be that one or more of the keys contains a
>>> non-printable character, such as a null byte.
>>> 
>>> You could us bin2hex on the keys to find out what's going on
>>> 
>>> See for example: https://3v4l.org/BMLMI
>>> 
>>> 
> 
> 
> 
> -- 
> Sincerely Yours, Andrey Repin <[email protected]>
>