PHP email form checkbox values?

Question

Hello,
I'm creating a php email form which part of it consists of a few checkboxes that I need to get the values of. My php knowledge isn't that great therefore I used a tutorial to successfully create the bulk of the form.
I currently have 7 checkboxes set up as such:
<input type="checkbox" id="grade_5" name="grade[]" value="Grade 5" />
Each of these are named "grade[]" to be stored in an array called "grade".
I know that the values are successfully stored in the array as they show up in the browser when I echo the array.
$grade = $_POST['grade'];
$N = count($grade);
for($i=0; $i < $N; $i++) {
     echo($grade[$i] . " ");
So, the part I am having trouble with is getting the values to show up in the body of the email.
$body = "
Grade Level(s): $grade
All that is returned in this case is the word "Array" instead of the desired checked grade values.
Any help is much appreciated! Thank you in advance!
*Note: All other values (textboxes, selection dropdowns, etc.) are already successfully sent to the email.

Answer 1

danedmonds wrote:
 All that is returned in this case is the word "Array" instead of the desired checked grade values.
That's because $grade is an array. If you want to access the values, you need to use a loop. Alternatively, use implode() to turn it into a comma-separated string, like this:
$grade = implode(', ', $grade);