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Posted by Marek Kilimajer on 02/11/05 05:15
Richard Lynch wrote:
> Mirco Blitz wrote:
>
>>HI,
>>I am really confused.
>>I have an array, that looks like this:
>>
>>print_r($elementsarr) = Array ( [0] => knr [1] => subject [2] => title [3]
>>=> kat [4] => pages [5] => access [6] => dofile [7] => MAX_FILE_SIZE [8]
>>=>
>>pdf [9] => dolink [10] => link [11] => erstam [12] => endless [13] => from
>>[14] => until [15] => openbem [16] => history [17] => closedbem [18] =>
>>[19]
>>=> b [20] => br [21] => bw [22] => bay [23] => h [24] => hb [25] => hh
>>[26]
>>=> mv [27] => n [28] => nw [29] => rp [30] => s [31] => sa [32] => sh [33]
>>=> sn [34] => t [35] => bund )
>>
>>Now i try to work with this array in a foreach.
>>
>>foreach($elementsarr as $key=>$tmp);
>>{
>> echo "$key=>$tmp<br>";
>>}
>>
>>Now the result of that is:
>>
>>35=>bund
>>
>>Ist not the first time i work with foreach. But it is the first time it
>>just
>>returns the last value.
>>
>>Do you have an idea why?
>
>
> Perhaps you need to use http://php.net/reset
>
> You see, when you do foreach or each or any of those, there is an
> "internal" setting in the array that is altered to keep track of where you
> are. Kind of like a big "You are here" arrow inside the guts of the
> array.
>
> If you've gone through the whole thing already, you have to reset the
> internal point back to the beginning.
This is not true for foreach - taken from the manual:
Note: When foreach first starts executing, the internal array
pointer is automatically reset to the first element of the array. This
means that you do not need to call reset() before a foreach loop.
Note: Also note that foreach operates on a copy of the specified
array and not the array itself. Therefore, the array pointer is not
modified as with the each() construct, and changes to the array element
returned are not reflected in the original array. However, the internal
pointer of the original array is advanced with the processing of the
array. Assuming the foreach loop runs to completion, the array's
internal pointer will be at the end of the array.
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