我对Page views计数器有这个功能:
function PageViews($postID) {
$c_key = 'views_count';
$cookie_count = $_COOKIE['views_count_'.$postID];
$count = get_post_meta($postID, $c_key, true);
if(!$cookie_count){
setcookie('views_count_'.$postID , 'view', time()+999999999);
if($count == ''){
$count = 1;
update_post_meta($postID, $c_key, $count);
return $count;
}else{
$count++;
update_post_meta($postID, $c_key, $count);
return $count;
}
}else{
return $count;
}
}
当我去查看帖子时,我收到此错误:
Warning: Cannot modify header information - headers already sent by (output started at....
并且我的cookie未设置,此功能在function.php
中。如何设置这个cookie?
答案 0 :(得分:0)
您正在尝试在输出已发送到浏览器后设置cookie。这是不允许的。您需要在生成任何输出之前调用此函数。