[SOLUCIONADO] Devolver contenido legible desde objeto en php

<?php

class miniature_news{

 var $cpt = array();

 public function __construct($end, $postperpag, $totalpost){
  $this->cpt["totalpages"] = ceil($totalpost / $postperpage);
 }

 public function grab_entries(){
  if($dir = opendir("dir/path/")){
   while(false != ($data = readdir($dir))){
    $file[] = $data;
    rsort($file);
   }
   closedir($dir);
   return($file);
  }
 }

 public function display_post(){
  $totalpost = $this->grab_entrie("dir/path/");
  foreach($totalpost as $element){
   $data = file("dir/path/".$element);
   $post = "<h2>{$data[0]}</h2>";
   unset($data);
  }
 return($post);
 }

}

$obj = new miniature_news($val1, $val2, $val3);

echo $obj->display_post(); // Desde aqui me devuelve solo una entrada!

?>

 
$totalpost = $this->grab_entrie("dir/path/");
  foreach($totalpost as $element){
   $data = file("dir/path/".$element);
   $post = "<h2>{$data[0]}</h2>";
   unset($data);
  }
 return($post);