Using WordPress ‘has_header_image()’ PHP function
The has_header_image() function in WordPress checks if a header image is set and returns true or false based on its presence
PHP
Using WordPress ‘has_custom_header()’ PHP function
The `has_custom_header()` function in WordPress verifies whether a custom header is set for the current theme or not
Using WordPress ‘has_action()’ PHP function
Checks if any action has been registered for a hook.
Using WordPress ‘global_terms_enabled()’ PHP function
The `global_terms_enabled()` function in WordPress determines if global terms are enabled