note 54332 deleted from function.in-array by felipe

Note Submitter: alex at alexelectronics dot com 

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A foreach would be simpler for a multi-dimensional array search (and probably faster, since you an use the value instead of the index).  Like this:

<?PHP
function in_multi_array($needle, $haystack) {
   $in_multi_array = false;
   if(in_array($needle, $haystack)) {
       $in_multi_array = true;
   } else {
       foreach $haystack as ($key => $val) {
           if(is_array($val)) {
               if(in_multi_array($needle, $val)) {
                   $in_multi_array = true;
                   break;
               }
           }
       }
   }
   return $in_multi_array;
}
?>

Using is_array($val) is probably faster than using is_array($haystack[$key])