<?php
session_start();
$_SESSION["view"]=1;
?>
<html>
<body>
<?php
if(isset($_SESSION["view"]))
{
$_SESSION["view"]=$_SESSION["view"]+1;
echo $_SESSION["view"]."<br>";
}
else
{
echo $_SESSION["view"]."<br>";
}
unset($_SESSION["view"]);//删除session
/* if(session_destroy())
{
echo $_SESSION["view"];
} //将session重置，失去所有session的数据
*/
?>
</body>
</html>
原文：http://www.cnblogs.com/jiangger/p/6439818.html