In_array Function...wrong Datatype?

[alexruimy]

I'm sure there's something wrong here on a basic level that I'm just unaware of. Here're a few lines of code that aren't functioning properly.

The error I'm getting is
[!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--]Warning: in_array(): Wrong datatype for second argument in...[/quote]

The relevant code is:

[code]$check = array(
       "service" => "Service",
       "centrifuge" => "Centrifuge",
       "support" => "Support",
       "disinfection" => "Disinfection",
       "main" => "Main",
       "northcontrol" => "North Control");

function echotitle($b){
   if (in_array($b, $check)) {
      echo " - ". ($check[$b]) . " Building";
      } else {
      echo "Overview";}
}[/code]

I'm aware this may not be the most efficient way to make what I'm trying to make happen, but I'm stuck on this now, and really want to make it work. I just learned the "=>" thing in arrays, and I'm trying to put it to use. My guess is that that's where the problem lies.

Any thoughts?

[alexruimy]

Gaah, I can't figure this damn thing out.

I found this at php.net, but can't figure out how to apply it:

[!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--]Sometimes, you might want to search values in array, that does not exist. In this case php will display nasty warning:
Wrong datatype for second argument in call to in_array() .

In this case, add a simple statement before the in_array function:

if (sizeof($arr_to_searchin) == 0 || !in_array($value, $arr_to_searchin)) { ... }

In this case, the 1st statement will return true, omitting the 2nd one[/quote]

[poirot]

[code]function echotitle($b){
  
   global $check;

   if (sizeof($arr_to_searchin) == 0 || !in_array($value, $arr_to_searchin)) {
      if (in_array($b, $check)) {
         echo " - ". ($check[$b]) . " Building";
         } else {
         echo "Overview";}
   }
}[/code]

I've also added global $check because it was not in the scope.
[a href=\"http://www.php.net/static\" target=\"_blank\"]http://www.php.net/static[/a]

[alexruimy]

Brilliant! Thanks much.