Contents of php delete the directory and directory

Description:

　　When you delete a directory, make sure that the directory and files, directories, and where there is authority to write

? < PHP 
$ dirName = '/ WWW / tmp' ; 
echo "Current:.". Get_current_user () "" . $ DirName; 
DeleteDir ($ dirName); 
function DeleteDir ($ dirName) { 
    IF (the file_exists ($ dirName)) { // determine whether a directory exists
         // if it is a directory, then we iterate the following file or directory
         // open directory handle 
        $ dir = opendir ($ dirName);
         the while ($ fileName = readdir ($ dir)) {
             // not run like parent directory operation 
            IF ($ fileName = && $ fileName = ".."! "."! ) { 
                $ File = $ dirName "/." $ fileName.;
                echo .. "||" $ File "||" ;
                 IF (is_dir ($ File)) { 
                    DeleteDir ($ File); // recursive directory delete 
                } the else { 
                    echo .. "--delete -" $ File "+ + " ; 
                    unlink ($ File); 
                } 
            } 
        } 
        closedir ($ dir); // close the dir 

        IF (rmdir ($ dirName)) echo" successfully deleted directory: $ dirName " ; 

        
    } the else { 
        echo " Sorry, the directory does not exist " ; 
    } 
}