Grab array value if a specific key is there with PHP

Question

I have an array that looks something like this:

Array
(
    [100] => Array
        (
            [room_id] => 100
            [name] => Town Center
             


        

Answer 1

Easy use the PHP function array_key_exists

You may have to go through a foreach loop since you are using a multidimensional array:

$names = [];
foreach($array as $e)
{
  if(array_key_exists('pin_id', $e)) {
        echo "The 'pin_id' element is in the array";
      $names[] = $e['name'];
  }
}

And now $names include all you names values