我在php中编写了一个API，该脚本由运行谷歌标记管理器的脚本调用。
该脚本的用途是为每位访客提供网站上唯一的电话号码
在测试期间，我通过添加带有php会话ID的cookie来管理用户跟踪。这使我能够查询数据库以查看它们是否已经分配了一个数字，如果它们是，那么我需要分配一个。
在测试中，这完美无缺，但是当在wordpress平台中实现时，cookie没有设置。因此，每次调用脚本时（在页面更改时），我都会收到一个新号码。
方法1 在客户端设置cookie并使用$ _Cookie检索[＆＃39; MyCookie＆＃39;]
方法2 创建会话并在调用脚本时检查会话ID。会话ID每次都在变化......失败
方法3 尝试使用ga访客ID（cid）来跟踪用户，这也会每次生成不同的号码
我已经尝试了许多解决方案来解决这个问题，但目前我无法阻止这个问题。
脚本当前配置为使用GA CID，看起来像这样
<?php
header("Access-Control-Allow-Origin: *");
error_reporting(-1);
ini_set('display_errors', 'On');
$servername = "";
$username = "";
$password = "";
$dbname = "";
$cookie_name = "TestCookie";
$numID;
$site_id = "";
$domain_name = $_POST['url'];
if(isset($domain_name)) {
$conn_siteID = new mysqli($servername, $username, $password, $dbname);
$sql_siteID = "Select * from SiteList where ReferrerURL = '" . $domain_name . "'";
$result = $conn_siteID->query($sql_siteID);
if ($conn_siteID->connect_error) {
die("Connection failed: " . $conn_siteID->connect_error);
}
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
$site_id = $row["id"];
}
} else {
}
$conn_siteID->close();
}
$cid = gaParseCookie();
echo $cid;
if(!empty($cid)) {
//Cookie doesnt exist give them a new number
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "Select * from NumPool where cid='". $cid . "' order by lastshown asc limit 1";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
//return current number
echo $row["number"];
$numID = $row["id"];
$conn4 = new mysqli($servername, $username, $password, $dbname);
$sql = "Update NumPool set lastshown='" . date("Y-m-d H:i:s") . "', cid='". $cid ."' where id='" . $numID . "'";
$result = $conn4->query($sql);
$conn4->close();
}
} else {
//return new number
$conn3 = new mysqli($servername, $username, $password, $dbname);
if ($conn3->connect_error) {
die("Connection failed: " . $conn3->connect_error);
}
$sql = "Select * from NumPool where siteid='". $site_id . "' order by lastshown asc limit 1";
$result = $conn3->query($sql);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
echo $row["number"];
$numID = $row["id"];
$conn4 = new mysqli($servername, $username, $password, $dbname);
$sql = "Update NumPool set lastshown='" . date("Y-m-d H:i:s") . "', cid='". $cid ."' where id='" . $numID . "'";
$result = $conn4->query($sql);
$conn4->close();
}
} else {
}
$conn3->close();
}
$conn->close();
}
// Handle the parsing of the _ga cookie or setting it to a unique identifier
function gaParseCookie() {
if (isset($_COOKIE['_ga'])) {
list($version,$domainDepth, $cid1, $cid2) = preg_split('[\.]', $_COOKIE["_ga"],4);
$contents = array('version' => $version, 'domainDepth' => $domainDepth, 'cid' => $cid1.'.'.$cid2);
$cid = $contents['cid'];
}
else $cid = gaGenUUID();
return $cid;
}
// Generate UUID v4 function - needed to generate a CID when one isn't available
function gaGenUUID() {
return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
// 32 bits for "time_low"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ),
// 16 bits for "time_mid"
mt_rand( 0, 0xffff ),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 4
mt_rand( 0, 0x0fff ) | 0x4000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
mt_rand( 0, 0x3fff ) | 0x8000,
// 48 bits for "node"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff )
);
}
?>
答案 0 :(得分：0)
我无法通过服务器端php实现解决上述问题。我选择在页面加载时注入一个脚本来执行客户端的操作
跟踪GTM中实施的代码
<script type="text/javascript">
(function () {
var ra = document.createElement('script');
ra.type = 'text/javascript';
ra.src = ('https:'==document.location.protocol?'https://':'http://')
+'www.test.co.uk/app/getcd.js';
var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ra, s);
}());
</script>
脚本实现
var cookieName = "";
var cookieValue = getCookie(cookieName);
var accountId = getAccount();
if (cookieValue == "") {
cookieValue = guid();
setCookie(cookieName, cookieValue, 30);
}
// request number using cookieValue
var url = "etcd.php";
var params = "url=" + document.domain + "&userid=" + cookieValue + "&gaAccountID='" + accountId;
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
} else { // code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
var numberfields = document.querySelectorAll('.complete');
for(var i = 0; i < numberfields.length; i++) {
if (xmlhttp.responseText !== "") {
numberfields[i].innerHTML=xmlhttp.responseText;
}
}
}
}
xmlhttp.open("POST",url,true);
xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlhttp.send(params);
function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + (exdays*24*60*60*1000));
var expires = "expires="+d.toUTCString();
document.cookie = cname + "=" + cvalue + "; " + expires;
}
function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i = 0; i < ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ') {
c = c.substring(1);
}
if (c.indexOf(name) == 0) {
return c.substring(name.length, c.length);
}
}
return "";
}
function guid() {
function s4() {
return Math.floor((1 + Math.random()) * 0x10000)
.toString(16)
.substring(1);
}
return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
s4() + '-' + s4() + s4() + s4();
}