Remove spaces and commas from checklist for classes

• cmegown

• February 4, 2014 at 4:51 am

I have a number of products that are added to each post and I need a list of those products as classes for each post.

First the code:

<li class="<?php the_field( 'products' ); ?>"></li>

Now the output I’m getting:

<li class="Product One, Product Two, Product Three"></li>

Desired output:

<li class="product-one product-two product-three"></li>

Any help is appreciated, thanks!

• James

• February 4, 2014 at 11:58 am

Hi @cmegown,

What type of field is ‘products’?

Cheers

• cmegown

• February 5, 2014 at 1:57 am

It’s a ‘checkbox’ field.

• Elliot

• February 5, 2014 at 12:26 pm

Hi @cmegown

You can render the data corerectly like so:

<?php 

$products = get_field( 'products' );
$products = array_map('sanitize_title', $products);
$products = implode(' ', $products );

?>
<li class="<?php echo $products; ?>"></li>

Links:
http://codex.wordpress.org/Function_Reference/sanitize_title
http://au2.php.net/array_map

• cmegown

• February 6, 2014 at 3:07 am

@elliot your solution works perfectly, and it totally just saved my bacon. Thanks also for the links – I’ll keep those for further education!

• rkeefer

• June 1, 2016 at 4:33 am

When I try to use this solution, I get PHP warnings:
PHP Warning: implode() [function.implode]: Invalid arguments passed in /Applications/MAMP/htdocs/wp-content/themes/theme2016/page-our-team.php on line 127

What do I need to adjust?

$team = get_field('team');
$team = array_map('sanitize_title', $team);
$team = implode(' ', $team );

team field is a Checkbox in a custom post type if it matters.