The `block_header_area()` function in WordPress is used to display the header block template part by printing it directly using PHP
Checks whether the current block type supports the feature requested.
The `block_footer_area()` function in WordPress is used to print the footer block template part
Preloads common data used with the block editor by specifying an array of REST API paths that will be preloaded for a given block editor context.
The `before_last_bar()` function in WordPress removes the last item from a pipe-delimited string, returning the modified string without the final pipe-separated element
Balances tags if forced to, or if the ‘use_balanceTags’ option is set to true.
Adds backslashes before letters and before a number at the start of a string.
Searches content for shortcodes and filter shortcodes through their hooks.
Calls the callback functions that have been added to a filter hook, specifying arguments in an array.