php – Problem getting the list of folders and subfolders

Question:

Could you tell me why this code goes into infinite recursion, because of what it eats up all the RAM and stops working?

public function getFiles($dir, $array = []){
    if(is_dir($dir)){
        $directory = scandir($dir);
        foreach($directory as $file){
            if($file != "." and $file != ".."){
                if(is_dir($dir."/".$file)){
                    $directory_files = $this->getFiles($dir."/".$file, $array);
                    $array = array_merge($array, $directory_files);
                }
                $array[] = $dir."/".$file;
            }
        }
    }
    $array[] = $dir;
    return $array;
}

Answer:

Corrected your code so it should work ( not tested ).

 function getFiles($dir) {

   $result = array();    
   $directory = scandir($dir);
   foreach ($directory as $key => $file)
   {
      if (!in_array($file,array(".","..")))
      {
         if (is_dir($dir."/".$file))
            $result[$file] = getFiles($dir."/".$value);
         else
            $result[] = $file;
      }
   }      
   return $result;
} 

var_dump(getFiles("some_dir"));