array_multisort problem, not sorting correctly

[NateUNI]

I'm running into the following problem when I try to use the array_multisort fuction. I'm trying to sort by date [1], then report name [0]. If I print out the multi-dimensional array before the array_multisort function, I recieve the following:

Array ( [0] => Array ( [0] => change [1] => 2003-09-24 [2] => 2003-09-24_change.pdf )
[1] => Array ( [0] => stats_client_summary [1] => 2003-10-06 [2] => 2003-10-06_stats_client_summary.pdf )
[2] => Array ( [0] => change [1] => 2003-10-07 [2] => 2003-10-07_change.pdf ) )

Then I run this statement to sort the multi-dimensional array:

array_multisort($TestArray[1], $TestArray[0]);

This is the sorted array that is returned:

Array ( [0] => Array ( [0] => 2003-09-24 [1] => 2003-09-24_change.pdf [2] => change )
[1] => Array ( [0] => 2003-10-06 [1] => 2003-10-06_stats_client_summary.pdf [2] => stats_client_summary )
[2] => Array ( [0] => change [1] => 2003-10-07 [2] => 2003-10-07_change.pdf ) )

The returned array is screwed up, [1] is moved to [0] in the first 2 rows, and it is not sorted. Does anyone know what I am doing wrong here?? Thanks!!

 

[sleipnir214]

You're invoking the wrong function. array_multisort() sorts the sub-arrays of each element of your outer array, which does not sound like what you want.

If you are looking to sort the outer array by one or more values in the inner sub-arrays, I recommend you look at usort() (

http://us4.php.net/manual/en/function.usort.php),

which will sort an array based on a user-defined comparison function.

Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!!

 

[NateUNI]

Thanks, Thats exactly what I needed!