Question

我正在尝试制作一个用于wordpress访问者计数器和限制访问者计数的插件。我写了这段代码，但是每次刷新页面时，计数器变量都会增加4倍或5倍。基本上，插件是免费访问的，用户应该登录免费访问网站后才能免费访问。请检查代码。

<?php
    $count=0;

    function ip_get(){

        if(!empty($_SERVER['HTTP_CLIENT_IP'])){
            //ip from share internet
            $new_ip = $_SERVER['HTTP_CLIENT_IP'];
        }elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
            //ip pass from proxy
            $new_ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
        }else{
            $new_ip = $_SERVER['REMOTE_ADDR'];
        }

        global $wpdb;
        $table_name=$wpdb->prefix.'wbs_user_ips';

        $results = $wpdb->get_results( "SELECT * FROM $table_name"); // Query to fetch data from database table and storing in $results
        if(empty($results)){
            $wpdb->insert($table_name,
                array(
                      'user_ip'=>$new_ip,      
                      'user_count'=>'1',      
                      'user_status'=>'0',    

                )
                );
        }

        if(!empty($results))     // Checking if $results have some values or not
        {  
            $count=0;
            foreach($results as $row){
                $ip= $row->user_ip;
                $count=$row->user_count;
            }

            if($ip==$new_ip){
                echo $count++;

                $wpdb->query($wpdb->prepare("UPDATE $table_name 
                            SET user_count=".$count."
                            WHERE user_ip = %s",$ip));
            }   
        } 
    }
?>

Answer 1

我认为您的foreach循环中有错误。并且请确保您使用正确的hook

<?php

$count=0;

function ip_get(){

    if(!empty($_SERVER['HTTP_CLIENT_IP'])){
        //ip from share internet
        $new_ip = $_SERVER['HTTP_CLIENT_IP'];
    }elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
        //ip pass from proxy
        $new_ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
    }else{
        $new_ip = $_SERVER['REMOTE_ADDR'];
    }

    global $wpdb;
    $table_name=$wpdb->prefix.'wbs_user_ips';

    $results = $wpdb->get_results( "SELECT * FROM $table_name"); // Query to fetch data from database table and storing in $results
    if(empty($results)){
        $wpdb->insert($table_name,
            array(
                  'user_ip'=>$new_ip,      
                  'user_count'=>'1',      
                  'user_status'=>'0',    

            )
            );
    }

    if(!empty($results))     // Checking if $results have some values or not
    {  
        $count=0;
        foreach($results as $row){
            $ip= $row->user_ip;
            $count=$row->user_count;

            if($ip==$new_ip){
                echo $count++;

                $wpdb->query($wpdb->prepare("UPDATE $table_name 
                        SET user_count=".$count."
                        WHERE user_ip = %s",$ip));
            }   
        }
    } 
}
?>

WordPress的插件访问计数器不能正常工作

1 个答案: