This function may pose a security risk and a risk for accidental damage such as data loss; use it carefully. Also, enable potentially destructive functions in the Config Files Options Page for it to work.
•Deletes the file specified by $filename.
•Returns 1 (true) if $filename is deleted, else 0 (false).
•This function is only supported in the professional and enterprise editions. Other editions will always return 0 (false).
•This function is supported only in CSE HTML Validator v12.0034 and later.