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Groups > comp.lang.php > #15296

Re: problem with double as array index?

From "M. Strobel" <strobel@example.com>
Newsgroups comp.lang.php
Subject Re: problem with double as array index?
Date 2015-05-07 00:45 +0200
Organization A noiseless patient Spider
Message-ID <mie5fl$l1l$1@dont-email.me> (permalink)
References <midt9v$ihf$1@dont-email.me> <Nsv2x.180740$an3.113965@fx23.fr7>

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On 06.05.2015 23:12, adam wrote:
> On 2015-05-06, M. Strobel <strobel@example.com> wrote:
>> I was not aware of this problem (not coding PHP for some time), what is it?
> It is not a bug, it is a feature. :)
>
> Array key in PHP can either be an integer or a string. So when you use 0.5 it
> gets auto-casted to an int which gives 0, so:
>
> array (0=>1, 0.5=>2, 1=>3) would be equivalent to array (0=>1, 0=>2, 1=>3)
>
> No magic here.
>
> http://php.net/manual/en/language.types.array.php
>
> Regards,
> A.
>
Okay, got it, index can be an integer or a string, with automatic cast.

You have to be an extremely good programmer to circumvent traps like this, so kudos 
to all PHP programmers writing stable and correct programs.

/Str.

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Thread

problem with double as array index? "M. Strobel" <strobel@example.com> - 2015-05-06 22:25 +0200
  Re: problem with double as array index? "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-05-06 22:57 +0200
  Re: problem with double as array index? adam <adam@nospam.net> - 2015-05-06 21:12 +0000
    Re: problem with double as array index? "M. Strobel" <strobel@example.com> - 2015-05-07 00:45 +0200
      Re: problem with double as array index? "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-05-07 01:08 +0200
        Re: problem with double as array index? "M. Strobel" <strobel@example.com> - 2015-05-07 13:36 +0200

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