PHP code to install the Tik Tok Pixel in WordPress child themes functions.php file

tiktok-pixel.php

// Version 1.0
function add_tiktok_pixel() {
    ?>
    <!-- TikTok Pixel Code -->
    <script>
        !function (w, d, t) {
            w.TiktokAnalyticsObject = t;
            var ttq = w[t] = w[t] || [];
            ttq.methods = ["page", "track", "identify", "instances", "debug", "on", "off", "once", "ready", "alias", "group", "enableCookie", "disableCookie"];
            ttq.setAndDefer = function (t, e) {
                t[e] = function () {
                    t.push([e].concat(Array.prototype.slice.call(arguments, 0)))
                }
            };
            for (var i = 0; i < ttq.methods.length; i++) ttq.setAndDefer(ttq, ttq.methods[i]);
            ttq.instance = function (t) {
                for (var e = ttq._i[t] || [], n = 0; n < ttq.methods.length; n++) ttq.setAndDefer(e, ttq.methods[n]);
                return e
            };
            ttq.load = function (e, n) {
                var i = "https://analytics.tiktok.com/i18n/pixel/events.js";
                ttq._i = ttq._i || {};
                ttq._i[e] = [];
                ttq._i[e]._u = i;
                ttq._t = ttq._t || {};
                ttq._t[e] = +new Date;
                ttq._o = ttq._o || {};
                ttq._o[e] = n || {};
                var o = document.createElement("script");
                o.type = "text/javascript";
                o.async = !0;
                o.src = i + "?sdkid=" + e + "&lib=" + t;
                var a = document.getElementsByTagName("script")[0];
                a.parentNode.insertBefore(o, a)
            };

            ttq.load('YOUR_PIXEL_ID'); // Replace 'YOUR_PIXEL_ID' with your actual TikTok Pixel ID
            ttq.page();
        }(window, document, 'ttq');
    </script>
    <!-- End TikTok Pixel Code -->
    <?php
}
add_action('wp_head', 'add_tiktok_pixel');