Using WordPress ‘header_textcolor()’ PHP function
Displays the custom header text color in 3- or 6-digit hexadecimal form (minus the hash symbol).
WordPress
Using WordPress ‘header_image()’ PHP function
The `header_image()` function in WordPress displays the URL of the current theme's header image
Using WordPress ‘have_posts()’ PHP function
Determines whether current WordPress query has posts to loop over.
Using WordPress ‘have_comments()’ PHP function
Determines whether current WordPress query has comments to loop over.
Using WordPress ‘has_term_meta()’ PHP function
Gets all meta data, including meta IDs, for the given term ID.
Using WordPress ‘has_term()’ PHP function
Checks if the current post has any of given terms.
Using WordPress ‘has_tag()’ PHP function
Checks if the current post has any of given tags.
Using WordPress ‘has_site_icon()’ PHP function
The `has_site_icon()` function in WordPress returns true if the site has a Site Icon set, otherwise false
Using WordPress ‘has_shortcode()’ PHP function
Determines whether the passed content contains the specified shortcode.