PHP实现的博客欢迎提示功能(很特别哦)
以下代码的实现效果:
1、留言的访客显示欢迎词
2、一般访客来源提示
3、不留言潜水党(刷新大于7次,催促留言)
4、针对IE的推送更新提示
使用方法:调用相应的函数,例如welcome_msg()。
复制代码 代码如下:
/**
* 欢迎词
* 以前的欢迎词在右上角提示.
* 实现原理:
* 通过$_SERVER['HTTP_REFERER']判断来路
* 通过$_SERVER["HTTP_USER_AGENT"]判断用户使用的浏览器
* 通过$_COOKIE["comment_author_" . COOKIEHASH]判断为评论者
*
*/
function welcome_msg(){
if($m = apply_filters('welcome_msg',$string)){
echo $m;
return;
}
global $referer;
$referer=$_SERVER['HTTP_REFERER'];
$hostinfo=parse_url($referer);
$host_h=$hostinfo["host"];
$host_p=$hostinfo["path"];
$host=array($host_h,$host_p);
if(substr($host_h, 0, 4) == 'www.')
$host_h = substr($host_h, 4);
$host_h_url='$host_h';
//直接输入 没有东西
if($referer==""){
echo "\n";
if($_COOKIE["comment_author_" . COOKIEHASH]!=""){
echo 'Howdy, '.$_COOKIE["comment_author_" . COOKIEHASH].', 欢迎回来';
}else{
echo "您直接访问了本站! 莫非您记住了我的域名.厉害~我倍感荣幸啊 嘿嘿";
}
//搜索引擎
//baidu
}elseif(preg_match('/baidu.*/i',$host_h)){
echo "您通过 百度 找到了我! 厉害.你要是能够订阅我的博客那就更好了.我经常分享一些好东西哦";
//google
}elseif(!preg_match('/www\.google\.com\/reader/i',$referer) && preg_match('/google\./i',$referer)){
echo "您通过 Google 找到了我! 厉害. 你要是能够订阅我的博客那就更好了. 我经常分享一些好东西哦";
//yahoo
}elseif(preg_match('/search\.yahoo.*/i',$referer) || preg_match('/yahoo.cn/i',$referer)){
echo "您通过 Yahoo 找到了我! 厉害. 你要是能够订阅我的博客那就更好了. 我经常分享一些好东西哦";
//阅读器
//google
}elseif(preg_match('/google\.com\/reader/i',$referer)){
echo "感谢你通过 Google 订阅我! 既然过来读原文了. 欢迎留言指导啊.嘿嘿 ^_^";
//xianguo
}elseif(preg_match('/xianguo\.com\/reader/i', $referer)){
echo "感谢你通过 鲜果 订阅我! 既然过来读原文了. 欢迎留言指导啊.嘿嘿 ^_^";
//zhuaxia
}elseif(preg_match('/zhuaxia\.com/i', $referer)){
echo "感谢你通过 抓虾 订阅我! 既然过来读原文了. 欢迎留言指导啊.嘿嘿 ^_^";
//哪吒
}elseif(preg_match('/inezha\.com/i', $referer)){
echo "感谢你通过 哪吒 订阅我! 既然过来读原文了. 欢迎留言指导啊.嘿嘿 ^_^";
//有道
}elseif(preg_match('/reader\.youdao/i', $referer)){
echo "感谢你通过 有道 订阅我! 既然过来读原文了. 欢迎留言指导啊.嘿嘿 ^_^";
//自己
}elseif(self()){
echo ""."\n";
}elseif($_COOKIE["comment_author_" . COOKIEHASH]!=""){
echo 'Howdy, '.$_COOKIE["comment_author_" . COOKIEHASH].'欢迎从'.$host_h.'回来';
}else{
echo '欢迎来自'. $host_h.'的朋友. 我经常分享一些好东西哦 ^_^ 欢迎订阅我的博客.';
}
}
//判断是自己的函数
function self(){
$local_info = parse_url(get_option('siteurl'));
$local_host = $local_info['host'];
//check self
if ( preg_match("/^http:\/\/(\w+\.)?($local_host)/",$_SERVER['HTTP_REFERER']) != 0) return true;
}
/**
* 分析浏览器 对于使用IE老版本的用户推送提醒
* 不要过分推送, 根据cookie判断
* 比如 对IE6的推送! 我希望是每隔20秒要有一次!
* @see setcookie_for_ie()
*/
function killIE($msg){
if(preg_match('/MSIE\s6/i', $_SERVER['HTTP_USER_AGENT'])){
if(!$_COOKIE['alert_ie_visitor_'.COOKIEHASH]){
$msg .= '
呃~ , 我不得不再提示一下:
';$msg .= '
您正在使用古老的 Internet Explorer 浏览网页, 该浏览器不符合W3C国际标准, 本站网页可能显示不正常,或部分功能无法使用
如果您升级到 Internet Explorer 8 或转换到另一个浏览器, 本站将能为您提供更好的服务.
';//add_action('init', 'setcookie_for_alert_ie_visitor');
}
}elseif(preg_match('/MSIE\s7/i', $_SERVER['HTTP_USER_AGENT'])){
if(!$_COOKIE['alert_ie_visitor_'.COOKIEHASH]){
$msg .= '
呃~ , 顺便提示一下:
';$msg .= '
您正在使用旧版本的 Internet Explorer 版本浏览网页,如果您升级到 Internet Explorer 8 或转换到另一个浏览器, 本站将能为您提供更好的服务.
';}
}elseif(preg_match('/MSIE\s8/i', $_SERVER['HTTP_USER_AGENT'])){
if(!$_COOKIE['alert_ie_visitor_'.COOKIEHASH]){
$msg .= '
呃~ , 顺便提示一下:
';$msg .= '
很高兴看到你使用较高版本的 Internet Explorer 浏览器! 但是我还是要向您推荐:
速度最快的 Chrome 和定制性最强的 Firefox
}
}else{
return;
}
return $msg;
}
add_filter('welcome_msg','killIE');
/**
* 对于来了很多次也不评论的家伙提醒
* 创建一个cookie用来计数
* 结合ajax评论函数,评论后将计算器设置为-5
* 这样评论后可以有个较长的缓和期
* @since 2.0.1
* @see welcome_msg, setcookie_for_alert_commentator
* 修改了cookies的写入方法,这里只读取cookies
*/
function alert_commentator($msg){
global $user_ID;
//管理员是个例外.不能对管理员推送!
if($user_ID){
return;//just return null;
}
if(!isset($_COOKIE['comment_author_visit_times_'.COOKIEHASH]))
return;//
//当次数>=6次时 推送提示
//由于在init上写入cookie所以实际上要等cookie累加到7是才显示提示!
if(((int)$_COOKIE['comment_author_visit_times_'.COOKIEHASH])>=6){
if($comment_author = $_COOKIE['comment_author_'.COOKIEHASH])
$msg = '嗨~, '.$comment_author.' 我发现你来了很多次也没有留言! 欢迎发表你的看法.';
else
$msg = '新朋友? 老朋友? 我看你来了很多次却没有留言.欢迎发表你的看法.';
}else{
return;//
}
return $msg;
}
add_filter('welcome_msg','alert_commentator');
/**
* 给访客设置一个计算器
*
* 作用:
* 不过访客一直浏览,不留言计数器工作
* 留言后将计数器归为-5
*
* @since 2.0.2
*/
function setcookie_for_alert_commentator(){
if(is_bot())
return;
global $user_ID;
if($user_ID)
return;
//如果没有计数器,写入
if(!isset($_COOKIE['comment_author_visit_times_'.COOKIEHASH])){
setcookie('comment_author_visit_times_'. COOKIEHASH, 1, time() + (60*60*24*300), COOKIEPATH, COOKIE_DOMAIN);
}else{
$visit_times = (int)$_COOKIE['comment_author_visit_times_'.COOKIEHASH];
setcookie('comment_author_visit_times_'. COOKIEHASH, ++$visit_times, time() + (60*60*24*300), COOKIEPATH, COOKIE_DOMAIN);
}
//当次数大于7时 停止推送 因为连续推送了2次了
if(((int)$_COOKIE['comment_author_visit_times_'.COOKIEHASH])>=7){
//设置为0 重来
setcookie('comment_author_visit_times_'. COOKIEHASH, -2, time() + (60*60*24*300), COOKIEPATH, COOKIE_DOMAIN);
}
}
add_action('init', 'setcookie_for_alert_commentator');
/**
* 针对ie不同版本设置不同的cookie
*
* 为了后面的推送升级通知
*/
function setcookie_for_ie(){
if(isset($_COOKIE['alert_ie_visitor_'.COOKIEHASH]))
return;
if(preg_match('/MSIE\s6/i', $_SERVER['HTTP_USER_AGENT'])){
//对于使用古老版ie用频繁推送 (cookies 5分钟失效)
setcookie('alert_ie_visitor_'.COOKIEHASH,'ie6',time()+(20),COOKIEPATH,COOKIE_DOMAIN);
}elseif(preg_match('/MSIE\s7/i', $_SERVER['HTTP_USER_AGENT'])){
//对于使用ie7的用户减少推送 (cookies 3天失效)
setcookie('alert_ie_visitor_'.COOKIEHASH,'ie7',time()+(60*60*24*3),COOKIEPATH,COOKIE_DOMAIN);
}elseif(preg_match('/MSIE\s8/i', $_SERVER['HTTP_USER_AGENT'])){
//对于使用ie8的用尽量不要推送 (cookies 100天失效)
setcookie('alert_ie_visitor_'.COOKIEHASH,'ie8',time()+(60*60*24*10),COOKIEPATH,COOKIE_DOMAIN);
}
}
add_action('init', 'setcookie_for_ie');

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