Question

Found a question which already explains this – How to sort an array of associative arrays by value of a given key in PHP?

I have an array (A1) of arrays (A2). I would like to sort all A2s inside A1 based on a key:value pair in A2

The structure is like this

A1
->A2-1
  ->K1:Some Value
  ->K2:ValB
->A2-2
  ->K1:Other Value
  ->K2:ValB1
->A2-3
  ->K1:Some Value
  ->K2:ValB2
->A2-4
  ->K1:Other Value
  ->K2:ValB3

I would like to sort the arrays in A1 so that all A2s for which K1’s value is Other Value are bunched together and all A2s for which K1’s value is Some Value are bunched together

So after the sorting, the final order of arrays in A1 should be A2-2, A2-4, A2-1, A2-3. Is there a function in PHP using which I can do this? Or do I have to parse through the entire array and do the sorting?

Thanks.

Answer 1

http://php.net/manual/en/function.array-multisort.php
If that doesn’t fit, there’s a lot of other array functions http://www.php.net/manual/en/ref.array.php