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Output a body class based on the WP development environment
* Adds a body class for the environment.
* @param array $classes The current array of body classes.
* @return array The new array of body classes.
function hd_env_body_class( $classes ) {
// if WP environment function exists.
if ( function_exists( 'wp_get_environment_type' ) ) {
// add the environment to the body class.
$classes[] = 'env--' . wp_get_environment_type();
return $classes;
add_filter( 'body_class', 'hd_env_body_class', 10, 1 );
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