CODE EXAMPLE FOR PHP

shortcode_atts wordpress

function wpdocs_bartag_func( $atts ) {
    $atts = shortcode_atts(
        array(
            'foo' => 'no foo',
            'bar' => 'default bar',
        ), $atts, 'bartag' );
 
    return 'bartag: ' . esc_html( $atts['foo'] ) . ' ' . esc_html( $atts['bar'] );
}
add_shortcode( 'bartag', 'wpdocs_bartag_func' );