wordpress评论ip异常问题
在多层nginx中，获取到的ip为最后一个nginx的上层nginxip
具体获取评论ip的代码为
wp-includes/comment.php
if ( ! isset( $commentdata['comment_author_IP'] ) ) {$commentdata['comment_author_IP'] = $_SERVER['REMOTE_ADDR'];}解决方法1
在wp-config中添加如下代码重写'REMOTE_ADDR'变量
// Set the real IP address for clients behind a proxy or load balancer.
function set_real_client_ip() {if ( ! empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {// Check if multiple IPs exist in the header, take the first one.$ip_address_list = array_map( 'trim', explode( ',', $_SERVER['HTTP_X_FORWARDED_FOR'] ) );$real_ip = reset( $ip_address_list );} elseif ( ! empty( $_SERVER['HTTP_CLIENT_IP'] ) ) {// Fallback to HTTP_CLIENT_IP if available.$real_ip = $_SERVER['HTTP_CLIENT_IP'];} else {// Use REMOTE_ADDR as fallback.$real_ip = $_SERVER['REMOTE_ADDR'];}// Set the REMOTE_ADDR to the real IP address.$_SERVER['REMOTE_ADDR'] = $real_ip;
}// Call the function to set the real IP address.
add_action( 'init', 'set_real_client_ip' );方法2,安装reverse-proxy-comment-ip-fix插件
插件市场里搜不到，可以上github下载
Tags · WPPlugins/reverse-proxy-comment-ip-fix · GitHub
下载zip包上传到插件安装界面就可以
插件本质上在pre_comment_user_ip加了过滤器执行对应函数里的操作