Working with files

Delete File

  //Delete the file
  if (file_exists($FilePath))
    unlink($FilePath);

Copy File

  copy("MySourceFile.txt","MyDestFile.txt");     //If the file already exists it will be overwritten.

Move File / Rename File

  rename("/current/MySourceFile.txt","/new/MyDestFile.txt");

Get file size

  $Bytes = filesize($FilePath);