sort 2 arrays based on other array key

Question

I have 2 arrays:

$data[ 1234567 ] = irrelevant value;

$info[ 1234567 ] = array( price = x, category = x )

I need to sort, maybe I have to change $data to array( 1234567, x ), but how can I sort $data based on price in $info?

What's the irrelevant value you want to sort? Is it a string? — Rager, Mar 04 '17 at 22:36
sorry if the question was bad, I was only trying to sort based on price from $info, I solved it now — J. Doe, Mar 04 '17 at 23:01
Possible duplicate of [Sort Multi-dimensional Array by Value](http://stackoverflow.com/questions/2699086/sort-multi-dimensional-array-by-value) — Mark Fitzgerald, Mar 05 '17 at 05:13

score 0 · Answer 1 · answered Mar 04 '17 at 23:00

what I did was loop through $data and get the values from $info, so I ended up with:

$data[ x ] = array( price = x, category = x, irrelevant value );

and used this function I found on php.net:

           function multisort (&$array, $key) {
                 $valsort=array();
                 $ret=array();
                 reset($array);
                 foreach ($array as $ii => $va) {
                    $valsort[$ii]=$va[$key];
                 }
                 asort($valsort);
                 foreach ($valsort as $ii => $va) {
                     $ret[$ii]=$array[$ii];
                 }
                 $array=$ret;
             }

so this way I didn't need the ID as keys since all data was in the array now

sort 2 arrays based on other array key

1 Answers1