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Add Google Tag Manager through functions.php in WordPress
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| /* Add Google Tag Manager javascript code as close to | |
| the opening <head> tag as possible | |
| =====================================================*/ | |
| function add_gtm_head(){ | |
| ?> | |
| <!-- Google Tag Manager --> | |
| <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': | |
| new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], | |
| j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= | |
| 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); | |
| })(window,document,'script','dataLayer','GTM-XXXX');</script> | |
| <!-- End Google Tag Manager --> | |
| <?php | |
| } | |
| add_action( 'wp_head', 'add_gtm_head', 10 ); | |
| /* Add Google Tag Manager noscript codeimmediately after | |
| the opening <body> tag | |
| ========================================================*/ | |
| function add_gtm_body(){ | |
| ?> | |
| <!-- Google Tag Manager (noscript) --> | |
| <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-XXXX" | |
| height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> | |
| <!-- End Google Tag Manager (noscript) --> | |
| <?php | |
| } | |
| add_action( 'body_top', 'add_gtm_body' ); |
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