Adding a tag in a function

I should add a tag in the following function:

if (has_tag('wi-fi', $post)) {
   $wi_fi_esc = esc_html__(get_the_author_meta( 'wi_fi_esc', $post->post_author ), 'sacconicase');
   if(!empty($wi_fi_esc)){
        $wi_fi_esc = '<div class="wi_fi_esc">'. $wi_fi_esc .'</div>';
   }
} else {
    // don't have 'wi-fi' tag
    $wi_fi_esc = '';
}

I need not only ‘wi-fi’ but also ‘light-wi-fi-navigazione-social-controllo-posta-no-streaming-o-download’, I just put a comma and enter the other tag ? they dont have to be checked at the same time, it would be a non-sense, but the function can ignore it because I dont do it myself

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