PHP setcookie()函数用法介绍
cookie就像是php中的session一样,只是一个在客户端一个是在服务器端了,下面我来详细介绍php中setcookie对cookie设置与删除代码。
setcookie()语法
setcookie (PHP 3, PHP 4, PHP 5)
setcookie -- 发送一个 cookie 信息
说明:bool setcookie ( string name [, string value [, int expire [, string path [, string domain [, bool secure]]]]] )
例
写cookie
代码如下 | 复制代码 |
$value = 'something from somewhere'; setcookie("TestCookie", $value); |
读cookie
代码如下 | 复制代码 |
// Print an individual cookie // Another way to debug/test is to view all cookies |
删除cookie
代码如下 | 复制代码 |
// set the expiration date to one hour ago |
由于cookie与HTTP的特定方式,你必须在你输出任何文本前,传送出所有的cookie。否则PHP会给出警告,并且cookie也不会被传送。因此,这样做是正确的:
代码如下 | 复制代码 |
setcookie(’name’, ‘jeff’); echo “Hello Everyone!”; ?> |
以下是错误地:
代码如下 | 复制代码 |
echo “Hello Everyone!”; setcookie(’name’, ‘jeff’); ?> |

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