Using WordPress ‘insert_blog()’ PHP function
The `insert_blog()` function is a WordPress PHP function that allows users to create new sites by storing basic site information in the blogs table and returning the new blog's ID
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Using WordPress ‘init()’ PHP function
Set up constants with default values, unless user overrides.
Using WordPress ‘index_rel_link()’ PHP function
The article provides an overview of the WordPress `index_rel_link()` PHP function, which generates a relational link for the site's index page
Using WordPress ‘get_the_archive_title()’ PHP function
Retrieves the archive title based on the queried object.
Using WordPress ‘includes_url()’ PHP function
The `includes_url()` function in WordPress is used to retrieve the URL to the `wp-includes` directory
Using WordPress ‘img_caption_shortcode()’ PHP function
The `img_caption_shortcode()` function generates the HTML for an image caption within WordPress using attributes specified by the user
Using WordPress ‘image_resize_dimensions()’ PHP function
Retrieves calculated resize dimensions for use in WP_Image_Editor.
Using WordPress ‘image_size_input_fields()’ PHP function
Retrieves HTML for the size radio buttons with the specified one checked.
Using WordPress ‘image_resize()’ PHP function
Scale down an image to fit a particular size and save a new copy of the image.