[FX.php List] foreach vs. first item in array

[Dale Bengston]

Hi Chuck,

The array keys of $returnedResult['data'] are recid.modid for each  
record, not self-assigned array keys (0, 1, 2 ...). That makes it  
harder to pull the nth record without already knowing what its key is.

I wrote a simple function to return the field data of the first  
record in the found set, and I just use that. It could easily be  
adapted to pull the last record or whatever record you need by  
sequential index...


$myFirstRec = getFirstRec($returnedResult['data']);


function getFirstRec($data)
	{
	$resultKeys = array_keys($data);
	$firstKey = $resultKeys[0];
	$firstRec = $data[$firstKey];
	
	return $firstRec;
	}


Hope this helps,
Dale

--
Dale Bengston | Streamline Studio, LLC | dbengston at streamline-studio.com
Associate Member, FileMaker Solutions Alliance





On Dec 13, 2005, at 4:36 PM, Charles Ross wrote:

> Both in the FX.php in 8 Hours book and here on this mailing list,  
> I've seen this line of code to extract a single item from the  
> object returned with an FMFind():
>
> foreach($returnedResult['data'] as $key => $value);
>
> From what I understand, this is useful when there should be a  
> single record returned in $returnedResult. If that's the case, why  
> not use:
>
> $value = $returnedResult['data'][0];
>
> Is there an advantage to using the foreach rather than the array  
> index version? I did some testing, and it seemed to work the same,  
> and the latter one seems easier to read and more straightforward,  
> so I'm wondering if I'm missing something.
>
> Thanks,
> Chuck Ross
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