Question

I have an array of arrays that look like this:

array(40) {
  [0]=>
    array(2) {
    ["id"]=>
    string(2) "ta"
    ["size"]=>
    int(2)
  [1]=>
    array(2) {
    ["id"]=>
    string(2) "tq"
    ["size"]=>
    int(4)
....

I want to be able to get all the sizes in a way that I can do a query like this:

IN (2,4)

so… For each array, get the size key: IN (size,size,size…)

Thanks!

Answer 1

You could do something like this:-

$sizes = implode(',', array_map(function($v) { return $v['size']; }, $array));

Then just pass $sizes to your IN query

edit

In response to your comment below, you can use array_unique to remove duplicate sizes, eg:

$sizes = implode(',', array_unique(array_map(function($v) { return $v['size']; }, $array)));