On 4 Mar 2012, at 14:31, Ruwan Pathmalal wrote:
> I confused with weird behaviour of array. Following is my script.
>
> $array = array(
>'12_1'=>array(
>56=>array(
>23=>'23',
>33=>'33')
>),
>'12_5'=>array(
>55=>'55'
>)
>);
>
> $array['12_5'][55][45] = '45';
> $array['12_5'][55][56] = '76';
> $array['12_5'][55][85] = '85';
> $array['12_5'][55][96] = '96';
> print_r($array);
> ?>
>
> Output is -:
> Array ( [12_1] => Array ( [56] => Array ( [23] => 23 [33] => 33 ) ) [12_5]
> => Array ( [55] => 55 4 7 8 9 ) )
>
> Sometime this is because, first time $array['12_5'][55] not an array. I
> assigned value to it like array. (I suppose overwrite key and then assign
> given value as key value pair). See this part of output [12_5] => Array (
> [55] => 55 4 7 8 9 ). It compose 4 from 45, 7 from 76, 8 from 85 like that
> (first digit of assigned values).
>
> I manage to overcome this problem by unsettling $array['12_5'][55] before
> assigning value to it.
>
> But I want to know why this happening or is this PHP bug ? (Clear
> explanation for situation :) )
Not a bug. You set $array['12_5'][55] to a string, then you try to use it as an
array. Strings can be accessed as arrays.
> $array['12_5'][55][45] = '45';
This line sets the 45th character in the string to 4 (each element of a string
accessed as an array can only contain a single character, so it throws the 5
away).
> $array['12_5'][55][56] = '76';
> $array['12_5'][55][85] = '85';
> $array['12_5'][55][96] = '96';
Likewise with these. You're not seeing the additional spaces because you're
viewing it as an HTML page. Run it on the command line or add before the
http://3ft9.com/
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