php学习笔记（二十五）php中cookie的使用和控制

<?php 
/**
 * Http是无状态的
 * 	1.只能在本页面使用变量
 * 	2.使用get和post来传递参数（两个页面间）
 * 	3.使用文件
 * 		file_put_contents("var.txt", "hello");
 * 		file_get_contents("var.txt");
 * 
 * Cookie 
 * 
 * 	
 */
	//保存一个小时
	$time = time()+3600;
	setCookie("one","111",$time);
	setcookie("two","222",$time);
	setcookie("three","333",$time);
	//存入数组
	setcookie("four[0]","444000",$time);
	setcookie("four[1]","444111",$time);
	echo "保存成功<br>";
	
	print_r($_COOKIE);
	echo $_COOKIE["one"];
	echo $_COOKIE["four"][0];
//	destroyCookie();
	
	/**
	 * 删除数据
	 * 需要将每一个存储的变量都进行删除
	 */
	function destroyCookie(){
		//马上设置过期
		$time = time()-100;
		setCookie("one","111",$time);
		setcookie("two","222",$time);
		setcookie("three","333",$time);
		//存入数组
		setcookie("four[0]","444000",$time);
		setcookie("four[1]","444111",$time);
	}
?>