Delete sub-array from array if condition (on both key AND value) is met

Question

I have a big array of identical sub-arrays, a minimal example may look like:

array(4) {
  [0]=>
  array(2) {
    ["id_product"]=>
    string(4) "1372"
    ["quantity"]=>
    int(0)
   }
  [1]=>
  array(2) {
    ["id_product"]=>
    string(4) "1373"
    ["quantity"]=>
    int(1)
   }
  [2]=>
  array(2) {
    ["id_product"]=>
    string(4) "1374"
    ["quantity"]=>
    int(2)
   }
  [3]=>
  array(2) {
    ["id_product"]=>
    string(4) "1375"
    ["quantity"]=>
    int(0)
   }
}

My goal is to create a new array excluding the sub-arrays with quantity equal to int(0), what might give something like:

array(4) {
  [1]=>
  array(2) {
    ["id_product"]=>
    string(4) "1373"
    ["quantity"]=>
    int(1)
   }
  [2]=>
  array(2) {
    ["id_product"]=>
    string(4) "1374"
    ["quantity"]=>
    int(2)
   }
}

I tried using array_search() and unset() but to no avail. Any suggestions on how to use these functions so that I can exclude any subarray with condition like : sub-key= x and value = y.

Thank you very much for helping me.

Mark Baker · Accepted Answer · 2014-07-11 16:08:02Z

1

A prefect situation to use array_filter()

$newArray = array_filter(
    $originalArray,
    function($value) {
        return $value['quantity'] > 0;
    }
);

answered Jul 11, 2014 at 16:08

Mark Baker

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3 Comments

Alex Over a year ago

The question required filtering out elements in an array, based on a condition, and creating a newly filtered array. A perfect case for using array_filter()

Adib Aroui Over a year ago

This worked perfectly for me, It addressed the problem like a charm. I think some upvotes should be put here instead of downvoting because the use of unset and array_search was a waste of time(for me).

Mark Baker Over a year ago

Perhaps I was downvoted for my spelling of perfect

Anri · Accepted Answer · 2014-07-11 16:19:58Z

1

Try your custom code

function array_filter(){
    $newArray = array();
    foreach($array as $key => $value){
        if($value["quantity"] > 0)
            $newArray[] = $value
    }
    return $newArray;
}

Enjoy :)

edited Jul 11, 2014 at 16:19

answered Jul 11, 2014 at 16:08

Anri

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