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mahmoodchowdhury/referral-source-tracker.php

Created October 25, 2024 17:41
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  1. mahmoodchowdhury created this gist Oct 25, 2024.
    78 changes: 78 additions & 0 deletions referral-source-tracker.php
    View file
    Original file line number Diff line number Diff line change
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    <?php
    /*
    Plugin Name: Referral Source Tracker
    Description: Tracks the original referral source of a lead and adds it to form submissions.
    Version: 1.1
    Author: Mahmood Chowdhury
    */

    // Hook to initialize tracking on page load
    add_action('wp', 'referral_source_tracker_init');

    function referral_source_tracker_init() {
    // Check if a referral source is already stored in the session
    if (!session_id()) {
    session_start();
    }

    // If the session doesn't have the source and the visitor is from an external site
    if (!isset($_SESSION['referral_source'])) {
    if (isset($_SERVER['HTTP_REFERER'])) {
    $referer = parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST);

    // Source determination based on known platforms
    if (strpos($referer, 'google.com') !== false && strpos($referer, 'googleadservices.com') === false) {
    $_SESSION['referral_source'] = 'Google Search';
    } elseif (strpos($referer, 'bing.com') !== false && strpos($referer, 'bingads.microsoft.com') === false) {
    $_SESSION['referral_source'] = 'Bing Search';
    } elseif (strpos($referer, 'googleadservices.com') !== false) {
    $_SESSION['referral_source'] = 'Google Ads';
    } elseif (strpos($referer, 'bingads.microsoft.com') !== false) {
    $_SESSION['referral_source'] = 'Bing Ads';
    } elseif (strpos($referer, 'facebook.com') !== false) {
    $_SESSION['referral_source'] = 'Facebook';
    } elseif (strpos($referer, 'linkedin.com') !== false) {
    $_SESSION['referral_source'] = 'LinkedIn';
    } elseif (strpos($referer, 'capterra.com') !== false) {
    $_SESSION['referral_source'] = 'Capterra';
    } elseif (strpos($referer, 'g2.com') !== false) {
    $_SESSION['referral_source'] = 'G2';
    } elseif (strpos($referer, 'sourceforge.net') !== false) {
    $_SESSION['referral_source'] = 'SourceForge';
    } else {
    $_SESSION['referral_source'] = 'Direct or Other';
    }
    } else {
    // If no referer, assume direct or unknown traffic
    $_SESSION['referral_source'] = 'Direct or Other';
    }
    }
    }

    // Function to get the referral source dynamically
    function get_referral_source() {
    if (!session_id()) {
    session_start();
    }
    return isset($_SESSION['referral_source']) ? $_SESSION['referral_source'] : 'Direct or Other';
    }

    // Make the referral source available as a dynamic variable in Gravity Forms and WPForms
    add_filter('gform_field_value_referral_source', 'populate_referral_source');
    add_filter('wpforms_field_value_referral_source', 'populate_referral_source');

    function populate_referral_source($value) {
    return get_referral_source();
    }

    // Enqueue script to auto-populate hidden field in form
    add_action('wp_enqueue_scripts', 'referral_source_enqueue_scripts');

    function referral_source_enqueue_scripts() {
    wp_enqueue_script('referral-source-script', plugin_dir_url(__FILE__) . 'referral-source.js', array('jquery'), null, true);

    // Pass the referral source to JavaScript
    wp_localize_script('referral-source-script', 'referralSourceData', array(
    'referralSource' => get_referral_source()
    ));
    }