Use PHP in_array with mutli array

Question

I want to use the same principe that in_array, but with a double array and only search in the first value. Let me explain :

$array_1 = [["1","aaa"],["2","bbb"],["3","aaa"],["4","ddd"]]

$array_2 = [["2","bbb"],["3","aaa"],["4","ddd"]]

Now i want the function return ["1", "aaa"] because this part is not in the second array. But I want to search difference only with the id (number 1, 2, 3 and 4), not with the text who can be similar, but never the id.

Did you try [`array_diff`](http://us1.php.net/manual/en/function.array-diff.php)? — Rahil Wazir, Jun 03 '14 at 12:10
Are you asking about comparing two arrays, or searching for an element within an array? — newfurniturey, Jun 03 '14 at 12:10
Are they arrays as in: `$array_1 = array(array("1","aaa"),array("2","bbb"),array("3","aaa"),array("4","ddd"));` — Andy Gee, Jun 03 '14 at 12:13

score 1 · Accepted Answer · answered Jun 03 '14 at 12:15

Just try with array_udiff function:

$array_1 = [["1", "aaa"], ["2", "bbb"], ["3", "aaa"], ["4", "ddd"]];
$array_2 = [["2", "bbb"], ["3", "aaa"], ["4", "ddd"]];

$output = array_udiff($array_1, $array_2, function($a, $b){
  if ($a[0] < $b[0]) {
    return -1;
  } else if ($a[0] > $b[0]) {
    return 1;
  }
  return 0;
});

var_dump($output);

Output:

array (size=1)
  0 => 
    array (size=2)
      0 => string '1' (length=1)
      1 => string 'aaa' (length=3)

Thank you it's works fine! Now i need the same function but in jQuery , Is it possible? — user3415011, Jun 04 '14 at 13:00

Use PHP in_array with mutli array

1 Answers1