//指定session id
 session_id("LD");

 //啟動session
 session_start();

 //註冊
 session_register("name");
 session_register("pass");

 //給定值
 $_SESSION["name"]="hiyitou";
 $_SESSION["pass"]="j21262126";

 echo "3秒後，自動跳轉到t2.php";

 header("refresh:3; url=t2.php");


 //關閉輸出暫存器

 ob_end_flush();

<?php
ob_start();
?>



<?php
 error_reporting(E_ALL ^ E_DEPRECATED);

 //啟動session
 session_start();

 echo "session id 是".session_id()."<p>";

 if (session_is_registered("name"))
 {
  echo "session name變數存在<br>";
  echo "值為：".$_SESSION["name"]."<p>";
 }
 else
 {
  echo "session name變數不存在";
 }
?>