📄 11-6.php
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<?php
session_start(); //开始使用session
echo "<html>"; //输出标准HTML内容
echo "<head>";
echo "<title>";
echo "注销SessionI";
echo "</title>";
echo "</head>";
echo "<body>";
$_SESSION["username"]="guest"; //直接为Session赋值
$_SESSION["password"]="123456"; //直接为Session赋值
$_SESSION["photo"]="1.jpg"; //直接为Session赋值
echo "当前Session为:";
echo "<pre>";
print_r($_SESSION); //输出当前Session
echo "</pre>";
unset($_SESSION[password]); //注销其中的password项
echo "<p>";
echo "当前Session为:";
echo "<pre>";
print_r($_SESSION); //输出当前Session
echo "</pre>";
echo "<p>";
unset($_SESSION); //注销所有Session
echo "当前Session为:";
echo "<pre>";
print_r($_SESSION); //输出当前Session
echo "</pre>";
echo "</body>";
echo "</html>";
?>
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