不匹配的计数器值，Google 缩短器与 php 访客计数器

Question

这是我想要实现的流程：

用户

点击共享 link（点击 Google 缩短 link）
重定向到计数器 (counter.php)
重定向到网页（网站页面）

我对 Google 缩短器和我自己的计数器的计数器值有疑问 - 值总是不同。我的计数器值总是比Google短的值大，我自己的代码计数器有什么问题吗？

counter.php :

//redirect to ?
$destination = "page1";
$destination_mobile = "page2";
$destination_article = "page3";

//connection
$con = mysqli_connect('localhost','root','','db_omron');
if (!$con) {    
    die('Could not connect: ' . mysqli_error($con));
}

//source contents
$id = mysqli_real_escape_string($con, $_GET['id']);
//internal
if($id=='101010'){$source='Quiz';}
else if($id=='101011'){$source='Quiz mobile';}
else if($id=='101020'){$source='Event';}
else if($id=='101021'){$source='Event mobile';}
else if($id=='101031'){$source='SMS';}
else if($id=='101040'){$source='News';}
else if($id=='101041'){$source='News mobile';}
else if($id=='101050'){$source='Banner';}
else if($id=='999990'){$source='tester';}
else{$source='n/a';}

date_default_timezone_set('Asia/Jakarta');
$today = date("Y-m-d");

//1.get old data
$sql="SELECT * FROM `click_counter` WHERE `id_source` = $id ORDER BY `date` DESC";
$result = mysqli_query($con,$sql);

$row = mysqli_fetch_array($result);
$oldTotal=$row['total'];
$oldDate=$row['date'];

//2.check if today is in database
if($today==$oldDate){
    //update
        $newTotal = $oldTotal+1;
        $newSqlUpdate="UPDATE `click_counter` SET `total` = '$newTotal' WHERE `id_source` = $id AND `click_counter`.`date` = '$today'";
        $newResult = mysqli_query($con,$newSqlUpdate);
    }else{
    //insert
        $newSqlInsert="INSERT INTO `click_counter` (`date`, `id_source`, `source`, `total`) VALUES ('$today', '$id', '$source', '1')";  
        $newEntry = mysqli_query($con,$newSqlInsert);
    }

//close connection
mysqli_close($con);

//redirecting page 

$a = substr("$id" , -1);
if ( $a == "1" ){
    header("Location:".$destination_mobile); 
}else if(($id=='102120') || ($id=='102130')){
    header("Location:".$destination_article); 
}else{
    header("Location:".$destination);
}

exit();

Answer 1

I have a problem with the counter value from the Google shortener and my own counter - the value always different. My counter value is always bigger than Google shorter value, is there anything wrong with my own code counter?

Google Analytics 通过 JavaScript 进行跟踪，因此，大多数机器人和任何未启用 JS 的用户都不会在其数量中进行跟踪。这几乎可以肯定是造成您的差异的原因。

不匹配的计数器值，Google 缩短器与 php 访客计数器

mismatched counter value, Google shortener vs php visitor counter

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