How to register shortcode in wordpress

How to register shortcode in wordpress

Single shortcode======

function single_shortcode( $atts, $content = null  ) {
 
    return '<div class="singe_shortcode_wrapper">'.do_shortcode($content).'</div>';
 
}   
add_shortcode('single_shortcode', 'single_shortcode');

=========Shortcode with attributes========

function shortcode_with_attributes( $atts, $content = null  ) {
 
    extract( shortcode_atts( array(
        'attribute' => '',
        'another' => ''
    ), $atts ) );
 
    return '
        <div class="shortcode_wrapper">
            <h2>'.$attribute.'</h2>
            '.$another.'
        </div>
    ';
}   
add_shortcode('shortcode_name', 'shortcode_with_attributes');