Adding theme option values as custom body class

Question

I'm looking to add some custom classes to the body element based on theme options.

I've setup two theme options ('rounded_corner_radio' & 'gradient_radio') that successfully output their values to the front-end using echo so I know they're working.

What I now need to do is insert those values into the body class but can't work out how. Here's what I currently have, any suggestions are very welcome.

<?php $rounded_corner_radio = of_get_option( 'rounded_corner_radio' ); $gradient_radio = of_get_option( 'gradient_radio' ); function custom_body_classes( $classes ) { $classes[] = $rounded_corner_radio; $classes[] = $gradient_radio; return $classes; } add_filter( 'body_class','custom_body_classes' ); ?> <body <?php body_class( ''); ?>>

Thanks in advance,

Tom

birgire · Accepted Answer · 2017-01-04 13:15:31Z

Review how the variable scope works..

Let's not add yet another global variable, instead we can e.g. fetch the option values within the filter's callback:

function wpse251261_custom_body_classes( $classes ) { // Get option values $rounded_corner_radio = of_get_option( 'rounded_corner_radio' ); $gradient_radio = of_get_option( 'gradient_radio' ); // Assign new body classes $classes[] = esc_attr( $rounded_corner_radio ); $classes[] = esc_attr( $gradient_radio ); return $classes; } add_filter( 'body_class','wpse251261_custom_body_classes' );

Note that we escaped it with esc_attr(), because the body_class filter is applied after such escaping in get_body_class().

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