Using WordPress ‘media_upload_file()’ PHP function
The article provides information about using the `media_upload_file()` PHP function in WordPress to handle the uploading of a generic file
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Using WordPress ‘maintenance_nag()’ PHP function
The `maintenance_nag()` function in WordPress displays a maintenance message to remind users to perform necessary updates
Using WordPress ‘rest_authorization_required_code()’ PHP function
Returns a contextual HTTP error code for authorization failure.
Using WordPress ‘ms_allowed_http_request_hosts()’ PHP function
Adds any domain in a multisite installation for safe HTTP requests to the allowed list.