Create wordpress function to get post author gravatar url as template tag

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I need a code implemented within function.php so I can get post author gravatar url as template tag get_author_gravatar_url().

So far I am using template tag my_gravatar_url() using function:

function my_gravatar_url() { // Get user email
$user_email = get_the_author_meta( 'user_email' );
/* Convert email into md5 hash and set image size to 65 px */
$user_gravatar_url = 'http://www.gravatar.com/avatar/' . md5($user_email) . '?s=150';
echo $user_gravatar_url; }
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1 comment

  1. You just need to modify the function slightly to return the value (rather than displaying it):

    function get_author_gravatar_url() { 
    // Get user email
    $user_email = get_the_author_meta( 'user_email' );
    // Convert email into md5 hash and set image size to 65 px
    $user_gravatar_url = 'http://www.gravatar.com/avatar/' . md5($user_email) . '?s=150';

    return $user_gravatar_url; 
}

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