Add comma after each selected checkbox when outputting to email

[frshjb373]

I am trying to add a comma between each variable selected on a multiple checkbox form.  I was able to successfully add a comma between each variable, but if a checkbox isn't selected it still uses a comma in the array.  I'm sure it's just a simple if/else statement, but I'm a newbie and I'm not quite sure how to solve.  Please see a sample below. Any help is much appreciated.  Thank you in advance!

 

<?php
$accessories_ary = array($field_Charger, $field_Case, $field_Software, $field_Manual, $field_Box);
$accessories = implode(", ", $accessories_ary);
substr_replace($accessories ,"",-1);
              echo $accessories
?>

[Pikachu2000]

array_filter

 

$accessories = implode(", ", array_filter($accessories_ary));

[frshjb373]

Awesome, that did the trick!  Thank you very much...