How to Display Author Avatar Within Posts or Pages in WordPress

By calling the get_avatar() method we can get the author’s avatar, below is the code snippet to display the author’s avatar on posts or pages in WordPress.

<?php 
echo get_avatar( $id_or_email = get_the_author_meta( 'user_email' ),  
                 $size = 50, 
                  $args = array( 'class' => array( 'avatar', 'img-circle' ) ) ); 
?>

You can also use get_the_author_email() function to get the post author email address.