Question

I am really new with PHP and all I have to do is to take all selected values and print them out separating them with comma, however, I need to drop last comma after last item in list.

<?php $favoriteFruit = get_post_meta($post->ID, 'Favorite Fruit', false) ?>
<?php if ($favoriteFruit != null): ?>
    <attribute key="FavoriteFruit" 
               value="<?php foreach($favoriteFruit as $fruit){
                                    echo $fruit.',';
                            } ?>"
               />
<?php endif ?>

This one prints out all items in list and doesn’t drop last comma. Any ideas?

Answer 1

how about simply imploding the array, using a comma as delimiter:

<?php echo implode(',',$favoriteFruit);?>

---

Just for fun: since people pointed out you can keep the loop and use rtrim, and -thankfuly, advised against it. Here’s another needlessly complex and absurd approach that works, too:

echo vsprintf('%s'.str_repeat(',%s',(count($favoriteFruit)-1)),$favoriteFruit);
//or, the other way round:
echo vsprintf(str_repeat('%s,',(count($favoriteFruit)-1)).'%s',$favoriteFruit);

Whatever you do, don’t use this code.