wpmem_register_form_rows

add_filter( 'wpmem_register_form_rows', 'my_register_form_rows_filter', 10, 2 );
function my_register_form_rows_filter( $rows, $toggle ) {
 
    /*
    Form rows are assembled as an array and the entire
    array is passed through this filter. Each row will
    have an array key equal to its optionname (meta_key).
     
    order, label_type, type, value, and values are all 
    passed for doing value comparisons. The remaining keys
    are form output and changes here will be reflected 
    in the displayed form.
     
    $rows['meta_key'] = array (
        'order'        => 1,
        'type'         => 'text',
        'value'        => '',
        'row_before'   => '',
        'label'        => '<label for="option_name" class="text">Field Label</label>',
        'field_before' => '<div class="div_text">',
        'field'        => '<input name="option_name" type="text" id="option_name" value="" class="textbox" />',
        'field_after'  => '</div>',
        'row_after'    => '',
    );
     
    $rows['meta_key']['label'] can be generated with wpmem_form_label()
    $rows['meta_key']['field'] can be generated with wpmem_form_field()
     
    */
 
    return $rows;
}
 
 
/*
 * The following example changes an element's output.
 */
add_filter( 'wpmem_register_form_rows', 'my_new_element', 10, 2 );
function my_new_element( $rows, $tag ) {
    // Change the label for a field with "my_field" as the meta key
    $rows['my_field']['label'] = "<label>My Custom Field Label</label>";
    return $rows;
}
 
 
/*
 * The following example adds a div wrapper with the 
 * class "my_row_wrapper" to all form rows.
 */
add_filter( 'wpmem_register_form_rows', 'my_row_wrapper', 10, 2 );
function my_row_wrapper( $rows, $tag ) {
    foreach ( $rows as $meta_key => $row ) {
        $rows[ $meta_key ]['row_before'] = '<div class="my_row_wrapper">';
        $rows[ $meta_key ]['row_after']  = '</div>';
    }
    return $rows;
}
 
 
/*
 * The following example adds a "heading" row between the name
 * fields and the address fields.  This is just a single example
 * of how wpmem_register_form_rows can be used to put additional
 * rows into the form (note: it can also be used to remove rows).
 *
 * This example also uses wpmem_array_insert().
 * @see: https://rocketgeek.com/plugins/wp-members/docs/api-functions/wpmem_array_insert/
 */
 
add_filter( 'wpmem_register_form_rows', 'my_field_separator', 10, 2 );
function my_field_separator( $rows, $tag ) {
      
    /*
     * Define an array of row elements.
     * Unused elements can be empty ('') 
     * but must still be defined.
     */
    $new_row['address_heading'] = array(
        'order' => '',
        'meta' => '',
        'type' => '',
        'value' => '',
        'row_before' => '',
        'label' => '<label class="text"></label>',
        'field_before' => '<div class="div_text">',
        'field' => '<h3>Please include your address information</h3>',
        'field_after' => '</div>',
        'row_after' => ''
    );
 
    /*
     * Add your new row into the $rows array using
     * wpmem_array_insert( $array, $new, $key )
     * - $array The array you are adding to.
     * - $new   The new element being added.
     * - $key   The key in $array you will add after.
     */
    $rows = wpmem_array_insert( $rows, $new_row, 'last_name' );
 
 
    // If additional rows are needed, repeat the process.
 
 
    // Return filtered $rows array.
    return $rows;
} // end of my_field_separator()