Show default headers description on frontend WordPress

designbuildtest comments:

Hi Hariprasad, $template_directory_uri was undefined so I added:

get_template_directory() . '/images/headers.php';

I'm still getting an undefined variable error for $header_description however.

Thanks.

Hariprasad Vijayan comments:

Hi,

User get_template_directory_uri() for instead of $template_directory_uri

or you can use following functions

function get_header_image_desc() {
global $_wp_default_headers;
foreach ( array_keys($_wp_default_headers) as $header ) {
$headerimg = sprintf( $_wp_default_headers[$header]['url'], get_template_directory_uri());
if (get_header_image() == $headerimg) {
$header_description = sprintf( $_wp_default_headers[$header]['description']);
}
}
return $header_description;
}
function header_image_desc() {
echo get_header_image_desc();
}


designbuildtest comments:

Thanks Hariprasad. This works great when suggested headers are in use, but throws an error when either a user uploaded image is displayed or user uploaded images are being randomized.

Can this code be amended so the descriptions of user uploaded images are also displayed when present?

designbuildtest comments:

Hi again Hariprasad,

I cobbled the below together which incorporates your original <strong>get_header_image_desc</strong> function.

I'm sure there must be a more elegant way of doing this ...


function amended_get_header_image_desc() {

if ( get_header_image() ) {

$header_image = get_header_image();

$header_state = get_theme_mod( 'header_image' );

$default_header_images = array(
get_template_directory_uri() . '/images/headers/circle.png',
get_template_directory_uri() . '/images/headers/diamond.png',
get_template_directory_uri() . '/images/headers/star.png',
'random-default-image',
);

if ( in_array( $header_state, $default_header_images ) ) {
echo get_header_image_desc();
}

else {
global $wpdb;
$query = "SELECT ID FROM {$wpdb->posts} WHERE guid='{$header_image}'";
$id = $wpdb->get_var($query);
$caption = get_post($id)->post_excerpt;
if ( $caption ) {
echo $caption;
}
}

}

}


Hariprasad Vijayan comments:

Is your last updated code is working?

Hariprasad Vijayan comments:

Try this code. It working for random and custom header images

function get_header_image_desc() {
global $_wp_default_headers;
$header_description = '';
if($_wp_default_headers)
{
foreach ( array_keys($_wp_default_headers) as $header ) {
$headerimg = str_replace("%s",'',$_wp_default_headers[$header]['url']);
if (strpos(get_header_image(),$headerimg) !== false) {
$header_description = sprintf( $_wp_default_headers[$header]['description']);
}
}
}
if(empty($header_description))
{
$img_id = get_custom_header()->attachment_id;
$header_description = get_post($img_id)->post_excerpt;
}
return $header_description;
}
function header_image_desc() {
echo get_header_image_desc();
}


designbuildtest comments:

Outstanding, many thanks Hariprasad.

My code did work, but your solution is so much more elegant.

Thanks again.