Retrieve the WordPress site URL.

Kills WordPress execution and displays HTML page with an error message.

Delete the fresh site option.

Mark a function argument as deprecated and inform when it has been used.

Marks a constructor as deprecated and informs when it has been used.

Mark a file as deprecated and inform when it has been used.

Mark a function as deprecated and inform when it has been used.

Marks a deprecated action or filter hook as deprecated and throws a notice.

Test if the current device has the capability to upload files.

Mark something as being incorrectly called.