Retrieves the date, in localized format.

Returns a comma-separated string or array of functions that have been called to get to the current point in code.

Delete a file

Deletes a file if its path is within the given directory.

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

Display a button directly linking to a PHP update process.

Retrieve the file type based on the extension name.

Use RegEx to extract URLs from arbitrary content.

Wrapper for PHP filesize with filters and casting the result as an integer.

Filters a list of objects, based on a set of key => value arguments.