Trouble Inserting Checkbox Array

[eluser]Jinme[/eluser]
Well, my code is one way. Your code is other way to the same place.
In your case PHP will automatically place the checked boxes into an array if you place [] brackets at the end of each name.
In this case cat_id is a Array and as such should be evaluated, you can use a foreach. Try this:

Code:

$categories = $data['cat_id'];
foreach ($categories as $category) {
   // Print value (only test)
   echo $category;
   // Insert here your code for save in the table
}