Possible Duplicate:
php how to group a multidimensional array by a particular value?
php group by SUM using multi dimensional array
I need some help in getting the count of the array element quantity by grouping it based on a date value part of a Multidimensional array in php
Here's my original array
Array
(
[0] => Array
(
[quantity] => 5
[dd] => 01-Nov-2012
)
[1] => Array
(
[quantity] => 10
[dd] => 01-Nov-2012
)
[2] => Array
(
[quantity] => 3
[dd] => 02-Nov-2012
)
[3] => Array
(
[quantity] => 4
[dd] => 03-Nov-2012
)
[3] => Array
(
[quantity] => 15
[dd] => 03-Nov-2012
)
)
And this is the Output I'm expecting
Array
(
[0] => Array
(
[quantity] => 15
[dd] => 01-Nov-2012
)
[1] => Array
(
[quantity] => 3
[dd] => 02-Nov-2012
)
[2] => Array
(
[quantity] => 19
[dd] => 03-Nov-2012
)
)