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我在我們的網站上有一段視頻，我正在跟蹤使用Google Analytics的觀點。這是代碼：如何使用Google Analytics和YouTube API在一頁上跟蹤兩個視頻？
<!-- 1. The <iframe> (and video player) will replace this <div> tag. -->
<div id="player"></div>
<script>
// 2. This code loads the IFrame Player API code asynchronously.
var utm_source='<?php echo $utm_source ?>';
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
// 3. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '360',
width: '640',
videoId: 'xxxxxxxxxx',
frameborder: '0',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// 4. The API will call this function when the video player is ready.
// Uncomment the event to have video start automatically.
function onPlayerReady(event) {
// event.target.playVideo();
}
// 5. The API calls this function when the player's state changes.
// The function indicates that when playing a video (state=1),
// the player should play for six seconds and then stop.
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING) {
if (utm_source == 'zilch') {
ga('send', 'event', 'YouTube', 'Started', 'Promo from Main Page');
}
else if (utm_source == 'CAMPAIGN') {
ga('send', 'event', 'YouTube', 'Started', 'Promo from Main Page via CAMPAIGN');
}
else {
ga('send', 'event', 'YouTube', 'Started', 'Promo from Main Page');
}
}
if (event.data == YT.PlayerState.ENDED) {
if (utm_source == 'zilch') {
ga('send', 'event', 'YouTube', 'Finished', 'Promo from Main Page');
}
else if (utm_source == 'CAMPAIGN') {
ga('send', 'event', 'YouTube', 'Finished', 'Promo from Main Page via CAMPAIGN');
}
else {
ga('send', 'event', 'YouTube', 'Finished', 'Promo from Main Page');
}
}
}
</script>
如果我複製並粘貼此代碼，並更改視頻ID它會覆蓋原始。如果我複製並粘貼此代碼，並留下視頻ID而不是顯示兩個，它只顯示原始內容。
我該如何工作，才能在頁面上追蹤多個視頻？我認爲它與<div id='player'></div>有關，但我沒有看到如何更改目標股利。