Valid Results

[NZ_Kiwis]

I've got in imput box where someone can submit a id, my code then displays the results based on this id, however how can i check that results are being returned, if someone enters nothing or jj for example i want to say error, no results are found.

[dagon]

only a guess

if(empty($result){
//no result
{

if its from a db, you can use a count function. you should also check the form input first.

if(!is_int($_POST['id])){
echo 'not a valid id';
}