PHP: Simplest way to delete a folder (including its contents)

Question

The rmdir() function fails if the folder contains any files. I can loop through all of the the files in the directory with something like this:

Answer 1

One safe and good function located in php comments by lprent It prevents accidentally deleting contents of symbolic links directories located in current directory

public static function delTree($dir) { 
   $files = array_diff(scandir($dir), array('.','..')); 
    foreach ($files as $file) { 
      (is_dir("$dir/$file") && !is_link($dir)) ? delTree("$dir/$file") : unlink("$dir/$file"); 
    } 
    return rmdir($dir); 
  }