Method 3 to traverse all files and folders under a folder

Traverse all files and folders under a folder

function list_dir($dirpath){
 if($dirpath[strlen($dirpath)]-1!='/'){
 $dirpath.="/";
 }
 static $result_array=array( );
 if(is_dir($dirpath)){
 $files_dirs=scandir($dirpath);
 foreach($files_dirs as $file){
 if($file=='.'||$file=='. .'){continue;}
 if(is_dir($dirpath.$file)){
 list_dir($dirpath.$file);
 }else{
 array_push($result_array,$dirpath.$file);
 }
 }
 }
 return $result_array;
}

$array=list_dir('D:/www');
foreach($array as $value){
 echo $value;
 echo "";
 }