PHP+MySQL表单结合gtag_report_conversion实现Adwords追踪问题

First, let’s ensure you have the foundational Google Ads gtag setup in your page’s <head> section—this must load before any conversion tracking code:

<script async src="https://www.googletagmanager.com/gtag/js?id=YOUR_ADWORDS_CONVERSION_ID"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());
  gtag('config', 'YOUR_ADWORDS_CONVERSION_ID');
</script>

Next, you’ll need the gtag_report_conversion function (provided by Google Ads when you create a conversion action). Here’s a standard, reliable version:

function gtag_report_conversion(url) {
  var callback = function () {
    if (typeof(url) !== 'undefined') {
      window.location = url;
    }
  };
  gtag('event', 'conversion', {
      'send_to': 'YOUR_ADWORDS_CONVERSION_ID/YOUR_CONVERSION_LABEL',
      'event_callback': callback
  });
  return false;
}

Now, attach this tracking to your form submission with one of these two methods:

Option 1: Direct onsubmit handler (quick implementation) #

Modify your form tag to include the onsubmit attribute that triggers the conversion before submission:

<form id="form1" method="post" enctype="multipart/form-data" role="form" autocomplete="off" onsubmit="return gtag_report_conversion(this.action);">
  <ul class="form-box">
    <li>
      <input name="adi" type="text" id="adi" class="form-text" required="required" placeholder="Adınız" />
    </li>
    <li>
      <input name="mesaj" type="text" id="mesaj" class="form-text" required="required" placeholder="Soyadınız" />
    </li>
    <!-- Add remaining form fields and submit button here -->
  </ul>
</form>

Option 2: JavaScript event listener (cleaner separation of concerns) #

If you prefer to keep HTML and JS separate, add this script right before your closing </body> tag:

document.getElementById('form1').addEventListener('submit', function(e) {
  e.preventDefault(); // Pause immediate form submission
  const form = this;
  
  gtag('event', 'conversion', {
    'send_to': 'YOUR_ADWORDS_CONVERSION_ID/YOUR_CONVERSION_LABEL',
    'event_callback': function() {
      form.submit(); // Submit form only after conversion is tracked
    }
  });
});

Key Tips: #

• Replace YOUR_ADWORDS_CONVERSION_ID and YOUR_CONVERSION_LABEL with the exact values from your Google Ads conversion setup (you’ll find these in the official tracking snippet Google provides).
• For AJAX-powered forms, trigger the conversion event immediately after your successful AJAX response (no need to handle page navigation).
• Test with Google Ads’ Tag Assistant to confirm the conversion fires correctly when the form is submitted.

内容的提问来源于stack exchange，提问作者user3404273