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I am getting problem like following in my website. i am just beginner of wordpress. so kindly help to fixed it.

Strict Standards: Declaration of My_Walker_Nav_Menu::start_lvl() should be compatible with Walker_Nav_Menu::start_lvl(&$output, $depth = 0, $args = Array) in /home/ramendraraj/public_html/wp-content/themes/ignitedtheme/functions.php on line 528

Warning: Cannot modify header information - headers already sent by (output started at /home/ramendraraj/public_html/wp-content/themes/ignitedtheme/functions.php:527) in /home/ramendraraj/public_html/wp-includes/pluggable.php on line 1167

Editing:
/home/ramendraraj/public_html/wp-content/themes/ignitedtheme/functions.php Encoding: Re-open Use Code Editor Close Save Changes

<?php
/**
 * Twenty Fourteen functions and definitions
 *
 * Set up the theme and provides some helper functions, which are used in the
 * theme as custom template tags. Others are attached to action and filter
 * hooks in WordPress to change core functionality.
 *
 * When using a child theme you can override certain functions (those wrapped
 * in a function_exists() call) by defining them first in your child theme's
 * functions.php file. The child theme's functions.php file is included before
 * the parent theme's file, so the child theme functions would be used.
 *
 * @link https://codex.wordpress.org/Theme_Development
 * @link https://codex.wordpress.org/Child_Themes
 *
 * Functions that are not pluggable (not wrapped in function_exists()) are
 * instead attached to a filter or action hook.
 *
 * For more information on hooks, actions, and filters,
 * @link https://codex.wordpress.org/Plugin_API
 *
 * @package WordPress
 * @subpackage Twenty_Fourteen
 * @since Twenty Fourteen 1.0
 */

/**
 * Set up the content width value based on the theme's design.
 *
 * @see twentyfourteen_content_width()
 *
 * @since Twenty Fourteen 1.0
 */
if ( ! isset( $content_width ) ) {
    $content_width = 474;
}

/**
 * Twenty Fourteen only works in WordPress 3.6 or later.
 */
if ( version_compare( $GLOBALS['wp_version'], '3.6', '<' ) ) {
    require get_template_directory() . '/inc/back-compat.php';
}

if ( ! function_exists( 'twentyfourteen_setup' ) ) :
/**
 * Twenty Fourteen setup.
 *
 * Set up theme defaults and registers support for various WordPress features.
 *
 * Note that this function is hooked into the after_setup_theme hook, which
 * runs before the init hook. The init hook is too late for some features, such
 * as indicating support post thumbnails.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_setup() {

    /*
     * Make Twenty Fourteen available for translation.
     *
     * Translations can be added to the /languages/ directory.
     * If you're building a theme based on Twenty Fourteen, use a find and
     * replace to change 'twentyfourteen' to the name of your theme in all
     * template files.
     */
    load_theme_textdomain( 'twentyfourteen', get_template_directory() . '/languages' );

    // This theme styles the visual editor to resemble the theme style.
    add_editor_style( array( 'css/editor-style.css', twentyfourteen_font_url(), 'genericons/genericons.css' ) );

    // Add RSS feed links to <head> for posts and comments.
    add_theme_support( 'automatic-feed-links' );

    // Enable support for Post Thumbnails, and declare two sizes.
    add_theme_support( 'post-thumbnails' );
    set_post_thumbnail_size( 672, 372, true );
    add_image_size( 'twentyfourteen-full-width', 1038, 576, true );

    // This theme uses wp_nav_menu() in two locations.
    register_nav_menus( array(
        'primary'   => __( 'Top primary menu', 'twentyfourteen' ),
        'secondary' => __( 'Secondary menu in left sidebar', 'twentyfourteen' ),
    ) );

    /*
     * Switch default core markup for search form, comment form, and comments
     * to output valid HTML5.
     */
    add_theme_support( 'html5', array(
        'search-form', 'comment-form', 'comment-list', 'gallery', 'caption'
    ) );

    /*
     * Enable support for Post Formats.
     * See https://codex.wordpress.org/Post_Formats
     */
    add_theme_support( 'post-formats', array(
        'aside', 'image', 'video', 'audio', 'quote', 'link', 'gallery',
    ) );

    // This theme allows users to set a custom background.
    add_theme_support( 'custom-background', apply_filters( 'twentyfourteen_custom_background_args', array(
        'default-color' => 'f5f5f5',
    ) ) );

    // Add support for featured content.
    add_theme_support( 'featured-content', array(
        'featured_content_filter' => 'twentyfourteen_get_featured_posts',
        'max_posts' => 6,
    ) );

    // This theme uses its own gallery styles.
    add_filter( 'use_default_gallery_style', '__return_false' );
}
endif; // twentyfourteen_setup
add_action( 'after_setup_theme', 'twentyfourteen_setup' );

/**
 * Adjust content_width value for image attachment template.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_content_width() {
    if ( is_attachment() && wp_attachment_is_image() ) {
        $GLOBALS['content_width'] = 810;
    }
}
add_action( 'template_redirect', 'twentyfourteen_content_width' );

/**
 * Getter function for Featured Content Plugin.
 *
 * @since Twenty Fourteen 1.0
 *
 * @return array An array of WP_Post objects.
 */
function twentyfourteen_get_featured_posts() {
    /**
     * Filter the featured posts to return in Twenty Fourteen.
     *
     * @since Twenty Fourteen 1.0
     *
     * @param array|bool $posts Array of featured posts, otherwise false.
     */
    return apply_filters( 'twentyfourteen_get_featured_posts', array() );
}

/**
 * A helper conditional function that returns a boolean value.
 *
 * @since Twenty Fourteen 1.0
 *
 * @return bool Whether there are featured posts.
 */
function twentyfourteen_has_featured_posts() {
    return ! is_paged() && (bool) twentyfourteen_get_featured_posts();
}

/**
 * Register three Twenty Fourteen widget areas.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_widgets_init() {
    require get_template_directory() . '/inc/widgets.php';
    register_widget( 'Twenty_Fourteen_Ephemera_Widget' );

    register_sidebar( array(
        'name'          => __( 'Primary Sidebar', 'twentyfourteen' ),
        'id'            => 'sidebar-1',
        'description'   => __( 'Main sidebar that appears on the left.', 'twentyfourteen' ),
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h1 class="widget-title">',
        'after_title'   => '</h1>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Content Sidebar', 'twentyfourteen' ),
        'id'            => 'sidebar-2',
        'description'   => __( 'Additional sidebar that appears on the right.', 'twentyfourteen' ),
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
                 'before_title'  => '<div class="title">',
        'after_title'   => '</div>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Footer Widget Area', 'twentyfourteen' ),
        'id'            => 'sidebar-3',
        'description'   => __( 'Appears in the footer section of the site.', 'twentyfourteen' ),
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h1 class="widget-title">',
        'after_title'   => '</h1>',
    ) );
}
add_action( 'widgets_init', 'twentyfourteen_widgets_init' );

/**
 * Register Lato Google font for Twenty Fourteen.
 *
 * @since Twenty Fourteen 1.0
 *
 * @return string
 */
function twentyfourteen_font_url() {
    $font_url = '';
    /*
     * Translators: If there are characters in your language that are not supported
     * by Lato, translate this to 'off'. Do not translate into your own language.
     */
    if ( 'off' !== _x( 'on', 'Lato font: on or off', 'twentyfourteen' ) ) {
        $query_args = array(
            'family' => urlencode( 'Lato:300,400,700,900,300italic,400italic,700italic' ),
            'subset' => urlencode( 'latin,latin-ext' ),
        );
        $font_url = add_query_arg( $query_args, '//fonts.googleapis.com/css' );
    }

    return $font_url;
}

/**
 * Enqueue scripts and styles for the front end.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_scripts() {
    // Add Lato font, used in the main stylesheet.
    wp_enqueue_style( 'twentyfourteen-lato', twentyfourteen_font_url(), array(), null );

    // Add Genericons font, used in the main stylesheet.
    wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.0.3' );

    // Load our main stylesheet.
    wp_enqueue_style( 'twentyfourteen-style', get_stylesheet_uri() );

    // Load the Internet Explorer specific stylesheet.
    wp_enqueue_style( 'twentyfourteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfourteen-style' ), '20131205' );
    wp_style_add_data( 'twentyfourteen-ie', 'conditional', 'lt IE 9' );

    if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
        wp_enqueue_script( 'comment-reply' );
    }

    if ( is_singular() && wp_attachment_is_image() ) {
        wp_enqueue_script( 'twentyfourteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20130402' );
    }

    if ( is_active_sidebar( 'sidebar-3' ) ) {
        wp_enqueue_script( 'jquery-masonry' );
    }

    if ( is_front_page() && 'slider' == get_theme_mod( 'featured_content_layout' ) ) {
        wp_enqueue_script( 'twentyfourteen-slider', get_template_directory_uri() . '/js/slider.js', array( 'jquery' ), '20131205', true );
        wp_localize_script( 'twentyfourteen-slider', 'featuredSliderDefaults', array(
            'prevText' => __( 'Previous', 'twentyfourteen' ),
            'nextText' => __( 'Next', 'twentyfourteen' )
        ) );
    }

    wp_enqueue_script( 'twentyfourteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20150315', true );
}
add_action( 'wp_enqueue_scripts', 'twentyfourteen_scripts' );

/**
 * Enqueue Google fonts style to admin screen for custom header display.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_admin_fonts() {
    wp_enqueue_style( 'twentyfourteen-lato', twentyfourteen_font_url(), array(), null );
}
add_action( 'admin_print_scripts-appearance_page_custom-header', 'twentyfourteen_admin_fonts' );

if ( ! function_exists( 'twentyfourteen_the_attached_image' ) ) :
/**
 * Print the attached image with a link to the next attached image.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_the_attached_image() {
    $post                = get_post();
    /**
     * Filter the default Twenty Fourteen attachment size.
     *
     * @since Twenty Fourteen 1.0
     *
     * @param array $dimensions {
     *     An array of height and width dimensions.
     *
     *     @type int $height Height of the image in pixels. Default 810.
     *     @type int $width  Width of the image in pixels. Default 810.
     * }
     */
    $attachment_size     = apply_filters( 'twentyfourteen_attachment_size', array( 810, 810 ) );
    $next_attachment_url = wp_get_attachment_url();

    /*
     * Grab the IDs of all the image attachments in a gallery so we can get the URL
     * of the next adjacent image in a gallery, or the first image (if we're
     * looking at the last image in a gallery), or, in a gallery of one, just the
     * link to that image file.
     */
    $attachment_ids = get_posts( array(
        'post_parent'    => $post->post_parent,
        'fields'         => 'ids',
        'numberposts'    => -1,
        'post_status'    => 'inherit',
        'post_type'      => 'attachment',
        'post_mime_type' => 'image',
        'order'          => 'ASC',
        'orderby'        => 'menu_order ID',
    ) );

    // If there is more than 1 attachment in a gallery...
    if ( count( $attachment_ids ) > 1 ) {
        foreach ( $attachment_ids as $attachment_id ) {
            if ( $attachment_id == $post->ID ) {
                $next_id = current( $attachment_ids );
                break;
            }
        }

        // get the URL of the next image attachment...
        if ( $next_id ) {
            $next_attachment_url = get_attachment_link( $next_id );
        }

        // or get the URL of the first image attachment.
        else {
            $next_attachment_url = get_attachment_link( reset( $attachment_ids ) );
        }
    }

    printf( '<a href="%1$s" rel="attachment">%2$s</a>',
        esc_url( $next_attachment_url ),
        wp_get_attachment_image( $post->ID, $attachment_size )
    );
}
endif;

if ( ! function_exists( 'twentyfourteen_list_authors' ) ) :
/**
 * Print a list of all site contributors who published at least one post.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_list_authors() {
    $contributor_ids = get_users( array(
        'fields'  => 'ID',
        'orderby' => 'post_count',
        'order'   => 'DESC',
        'who'     => 'authors',
    ) );

    foreach ( $contributor_ids as $contributor_id ) :
        $post_count = count_user_posts( $contributor_id );

        // Move on if user has not published a post (yet).
        if ( ! $post_count ) {
            continue;
        }
    ?>

    <div class="contributor">
        <div class="contributor-info">
            <div class="contributor-avatar"><?php echo get_avatar( $contributor_id, 132 ); ?></div>
            <div class="contributor-summary">
                <h2 class="contributor-name"><?php echo get_the_author_meta( 'display_name', $contributor_id ); ?></h2>
                <p class="contributor-bio">
                    <?php echo get_the_author_meta( 'description', $contributor_id ); ?>
                </p>
                <a class="button contributor-posts-link" href="<?php echo esc_url( get_author_posts_url( $contributor_id ) ); ?>">
                    <?php printf( _n( '%d Article', '%d Articles', $post_count, 'twentyfourteen' ), $post_count ); ?>
                </a>
            </div><!-- .contributor-summary -->
        </div><!-- .contributor-info -->
    </div><!-- .contributor -->

    <?php
    endforeach;
}
endif;

/**
 * Extend the default WordPress body classes.
 *
 * Adds body classes to denote:
 * 1. Single or multiple authors.
 * 2. Presence of header image except in Multisite signup and activate pages.
 * 3. Index views.
 * 4. Full-width content layout.
 * 5. Presence of footer widgets.
 * 6. Single views.
 * 7. Featured content layout.
 *
 * @since Twenty Fourteen 1.0
 *
 * @param array $classes A list of existing body class values.
 * @return array The filtered body class list.
 */
function twentyfourteen_body_classes( $classes ) {
    if ( is_multi_author() ) {
        $classes[] = 'group-blog';
    }

    if ( get_header_image() ) {
        $classes[] = 'header-image';
    } elseif ( ! in_array( $GLOBALS['pagenow'], array( 'wp-activate.php', 'wp-signup.php' ) ) ) {
        $classes[] = 'masthead-fixed';
    }

    if ( is_archive() || is_search() || is_home() ) {
        $classes[] = 'list-view';
    }

    if ( ( ! is_active_sidebar( 'sidebar-2' ) )
        || is_page_template( 'page-templates/full-width.php' )
        || is_page_template( 'page-templates/contributors.php' )
        || is_attachment() ) {
        $classes[] = 'full-width';
    }

    if ( is_active_sidebar( 'sidebar-3' ) ) {
        $classes[] = 'footer-widgets';
    }

    if ( is_singular() && ! is_front_page() ) {
        $classes[] = 'singular';
    }

    if ( is_front_page() && 'slider' == get_theme_mod( 'featured_content_layout' ) ) {
        $classes[] = 'slider';
    } elseif ( is_front_page() ) {
        $classes[] = 'grid';
    }

    return $classes;
}
add_filter( 'body_class', 'twentyfourteen_body_classes' );

/**
 * Extend the default WordPress post classes.
 *
 * Adds a post class to denote:
 * Non-password protected page with a post thumbnail.
 *
 * @since Twenty Fourteen 1.0
 *
 * @param array $classes A list of existing post class values.
 * @return array The filtered post class list.
 */
function twentyfourteen_post_classes( $classes ) {
    if ( ! post_password_required() && ! is_attachment() && has_post_thumbnail() ) {
        $classes[] = 'has-post-thumbnail';
    }

    return $classes;
}
add_filter( 'post_class', 'twentyfourteen_post_classes' );

/**
 * Create a nicely formatted and more specific title element text for output
 * in head of document, based on current view.
 *
 * @since Twenty Fourteen 1.0
 *
 * @global int $paged WordPress archive pagination page count.
 * @global int $page  WordPress paginated post page count.
 *
 * @param string $title Default title text for current view.
 * @param string $sep Optional separator.
 * @return string The filtered title.
 */
function twentyfourteen_wp_title( $title, $sep ) {
    global $paged, $page;

    if ( is_feed() ) {
        return $title;
    }

    // Add the site name.
    $title .= get_bloginfo( 'name', 'display' );

    // Add the site description for the home/front page.
    $site_description = get_bloginfo( 'description', 'display' );
    if ( $site_description && ( is_home() || is_front_page() ) ) {
        $title = "$title $sep $site_description";
    }

    // Add a page number if necessary.
    if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
        $title = "$title $sep " . sprintf( __( 'Page %s', 'twentyfourteen' ), max( $paged, $page ) );
    }

    return $title;
}
add_filter( 'wp_title', 'twentyfourteen_wp_title', 10, 2 );

// Implement Custom Header features.
require get_template_directory() . '/inc/custom-header.php';

// Custom template tags for this theme.
require get_template_directory() . '/inc/template-tags.php';

// Add Customizer functionality.
require get_template_directory() . '/inc/customizer.php';

/*
 * Add Featured Content functionality.
 *
 * To overwrite in a plugin, define your own Featured_Content class on or
 * before the 'setup_theme' hook.
 */
if ( ! class_exists( 'Featured_Content' ) && 'plugins.php' !== $GLOBALS['pagenow'] ) {
    require get_template_directory() . '/inc/featured-content.php';
}

//for sub page add subul class and add in header.php 'walker' => new My_Walker_Nav_Menu() ) );
class My_Walker_Nav_Menu extends Walker_Nav_Menu {
  function start_lvl(&$output, $depth) {
    $indent = str_repeat("\t", $depth);
    $output .= "\n$indent<ul class=\"dropdown\">\n";
  }

}
  • This is way too much code for one question, especially unformatted. Please narrow down your questions code to what the issue is referring to. Then read over Formatting and edit your question ( using the Edit button above ). – Howdy_McGee Jul 21 '16 at 16:48
3

Not sure you're asking for error with Walker_Nav_Menu::start_el() or Walker_Nav_Menu::start_lvl(). But you must specify all arguments as default in the Walker_Nav_Menu class in your derived classes. E.g:

class description_walker extends Walker_Nav_Menu
{
  /**
   * Starts the list before the elements are added.
   *
   * @see Walker::start_lvl()
   */
  public function start_lvl(&$output, $depth = 0, $args = array())
  {
    // your code...
  }

  /**
   * Start the element output.
   *
   * @see Walker::start_el()
   */
  public function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0)
  {
    // your code...
  }
}  

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