php中setcookie() 函数用法介绍
setcookie() 函数是php中一个用来设置cookie值的一个函数,下面我来总结一下setcookie() 函数的具体用法以及设置之后怎么获取cookie的值.
setcookie() 函数向客户端发送一个 HTTP cookie.cookie 是由服务器发送到浏览器的变量.cookie 通常是服务器嵌入到用户计算机中的小文本文件.每当计算机通过浏览器请求一个页面,就会发送这个 cookie.
cookie 的名称指定为相同名称的变量.例如,如果被发送的 cookie 名为 "name",会自动创建名为 $user 的变量,包含 cookie 的值.
必须在任何其他输出发送前对 cookie 进行赋值.如果成功,则该函数返回 true,否则返回 false.
语法
setcookie(name,value,expire,path,domain,secure)
实例代码如下:
makecookie( '111' , 'HdhCmsTest111cn.net' ); //清除cookie clearcookies(); //下面兴一个支持二级域名cookie函数吧. function setcookielive( $name , $value = '' , $expire =0, $path = '' , $domain = '' , $secure =false, $httponly =false) { //set a cookie as usual, but also add it to $_cookie so the current page load has access $_cookie [ $name ] = $value ; return setcookie( $name , $value , $expire , $path , $domain , $secure , $httponly ); } //调用方法 setcookielive( 'webab' , '111cn' ,time()+86000, '/' , '111cn.net' ); //一入门级cookie设置方法 setcookie( "cookie[three]" , "cookiethree" ); setcookie( "cookie[two]" , "cookietwo" ); setcookie( "cookie[one]" , "cookieone" ); // after the page reloads, print them out if (isset( $_cookie [ 'cookie' ])) { foreach ( $_cookie [ 'cookie' ] as $name => $value ) { echo "$name : $value <br />n" ; } }js获取 cookie方法实例代码如下:
<html> <head> <meta http-equiv= "Content-Type" content= "text/html; charset=UTF-8" > <title>Insert title here</title> </head> <body> <script type= "text/javascript" > //get cookie function getCookie(name) { var nameEQ = name + "=" ; var ca = document.cookie.split( ';' ); for ( var i=0;i < ca.length;i++) { var c = ca[i]; while (c.charAt(0)== ' ' ) { c = c.substring(1,c.length); } if (c.indexOf(nameEQ) == 0) { return unescape(c.substring(nameEQ.length,c.length)); } } return false; } //clear cookie function clearCookie(name) { setCookie(name, "" , -1); } //set cookie function setCookie(name, value, seconds) { seconds = seconds || 0; var expires = "" ; if (seconds != 0 ) { var date = new Date (); date .setTime( date .getTime()+(seconds*1000)); expires = "; expires=" + date .toGMTString(); } document.cookie = name+ "=" +escape(value)+expires+ "; path=/" ; } alert(getCookie( 'test2' )); </script> </body> </html>查看更多关于php中setcookie() 函数用法介绍 - php会话的详细内容...
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