note 24547 deleted from function.in-array by felipe

Note Submitter: leighnus at mbox dot com dot au 

----

Alternative method to find an array within an array (if your version of php doesn't support array type $needles):

function array_in_array($needle, $haystack) {
  foreach ($haystack as $value) {
    if ($needle == $value) 
      return true;
  }
  return false;
}