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【PHP cookie+function】

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Release: 2016-06-23 13:24:35
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COOKIE+自定义函数!!!

实现简单的欢迎效果:

                    xx桑,这是您第n次光临哟

<form name = "msg" method = "POST" action = "">	请输入id:<input name = "con" type = "text"></input><br />	<input name = "submit" type = "submit"></input>	</form><?php	function welcome($c1){	if(! isset($_COOKIE['con'])){		setcookie('con', 0 ,time()+3600);		echo "WELCOME!";	}else{		$con = $_COOKIE['con'] + 1;		setcookie('con', $con,time()+3600);		echo $c1,"桑,这是您第",$con, "次光临哟";	}	}	welcome($_POST['con']);	function decoo($p2){setcookie('con', '', time()-1);}?>
Copy after login

注意setcookie之前不能有输出。setcookie有6个参数,第一个是必要的,第一个string表示变量名,第二个混合类型表取值,第三个int表时间戳。

注意自定义函数的参数返回方法有return和在参数前面直接加&。

然后是删除cookie的方法:

setcookie('con', $con, time()-1);
Copy after login


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