<?php

function navbar()
{
$files = dir("."); //指定目錄
$pipe  = " | ";    //管道符
//通過以下的循環搜索目錄中所有文件
while ($current = $files->read())
   {
     //ignor all files not of htm type.
    if (strpos($current, "php/")!= false)  //設定后綴為php的文件將被導航
       //忽略自己(如 index.html)
       {  

          if (strpos($current, "ndex") == false)
          {
             print "<a href='";
             print $current;
             print "'>";
             print $current;
             print "</a>";
             print $pipe;
          }; 
       };
     };
};
navbar() //調用函數
?>