Recursively traverse all file instance codes directly

<?php  
  
//直接遍历所有文件.递归  function trees($dirname){  $dirOb = dir($dirname);  
     echo "<ul>\n";  while($file = $dirOb->read()){  if($file == "." || $file == ".."){  
              
        }else{  if(is_dir("$dirname/$file")){  echo "<li><font color=\"#ff00cc\"><b>$file</b></font></li>\n";  
                trees("$dirname/$file");  
            }else{  
                 echo "<li>$file</li>\n";  
            }  
        }  echo "<br/>";  
    }  echo "</ul>\n";  
}  
trees("../tp5");

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