Using WordPress ‘has_meta()’ PHP function
The `has_meta()` function in WordPress retrieves post meta data for a specified post ID
PHP
Using WordPress ‘has_image_size()’ PHP function
The `has_image_size()` function in WordPress is used to check whether a specific image size exists or not by passing the name of the desired image size as its argument
Using WordPress ‘has_header_video()’ PHP function
The `has_header_video()` function in WordPress checks if a header video is set and returns true if one exists, false otherwise
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
Using WordPress ‘has_filter()’ PHP function
Checks if any filter has been registered for a hook.
Using WordPress ‘has_excerpt()’ PHP function
The `has_excerpt()` function in WordPress returns boolean values indicating whether a post has a custom excerpt, using the `$post` parameter
Using WordPress ‘get_the_author_aim()’ PHP function
Retrieve the AIM address of the author of the current post.
Using WordPress ‘has_custom_logo()’ PHP function
The `has_custom_logo()` function in WordPress checks if the site has a custom logo set and returns true if so, false otherwise
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