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wordpress header.php资料的疑问

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Jun 13, 2016 pm 01:14 PM

gtheaderltphpquot

wordpress header.php文件的疑问。

在下php新手，在看wordpress代码时，对header文件始终不解（位置:wp-content/temes/twentyeleven/header.php）。
特来请教各位：
该文件代码中并include操作，其中如bloginfo(),wp_head()等外部函数如何可以调用？
此种开发模式如何实现？望各位能为在下讲解下，或提供资料，在下不甚感激。

PHP code

<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

-->
<?php /**
 * The Header for our theme.
 *
 * Displays all of the <head> section and everything up till <div id="main">
 *
 * @package WordPress
 * @subpackage Twenty_Eleven
 * @since Twenty Eleven 1.0
 */
?>
<!--[if IE 6]>
<html id="ie6" <?php language_attributes(); ?>>
<![endif]-->
<!--[if IE 7]>
<html id="ie7" <?php language_attributes(); ?>>
<![endif]-->
<!--[if IE 8]>
<html id="ie8" <?php language_attributes(); ?>>
<![endif]-->
<!--[if !(IE 6) | !(IE 7) | !(IE 8)  ]><!-->
>
<!--<![endif]-->

<meta charset="<?php bloginfo( 'charset' ); ?>">
<meta name="viewport" content="width=device-width">
<title>
<?php /*
     * Print the <title> tag based on what is being viewed.
     */
    global $page, $paged;

    wp_title( '|', true, 'right' );

    // Add the blog name.
    bloginfo( 'name' );

    // Add the blog description for the home/front page.
    $site_description = get_bloginfo( 'description', 'display' );
    if ( $site_description && ( is_home() || is_front_page() ) )
        echo " | $site_description";

    // Add a page number if necessary:
    if ( $paged >= 2 || $page >= 2 )
        echo ' | ' . sprintf( __( 'Page %s', 'twentyeleven' ), max( $paged, $page ) );

    ?></title>
<link rel="profile" href="http://gmpg.org/xfn/11">
<link rel="stylesheet" type="text/css" media="all" href="<?php%20bloginfo(%20'stylesheet_url'%20);%20?>">
<link rel="pingback" href="<?php%20bloginfo(%20'pingback_url'%20);%20?>">
<!--[if lt IE 9]>
<script src="<?php echo get_template_directory_uri(); ?>/js/html5.js" type="text/javascript"></script>
<![endif]-->
<?php /* We add some JavaScript to pages with the comment form
     * to support sites with threaded comments (when in use).
     */
    if ( is_singular() && get_option( 'thread_comments' ) )
        wp_enqueue_script( 'comment-reply' );

    /* Always have wp_head() just before the closing </head>
     * tag of your theme, or you will break many plugins, which
     * generally use this hook to add elements to  such
     * as styles, scripts, and meta tags.
     */
    wp_head();
?>


>
<div id="page" class="hfeed">
    <header id="branding" role="banner">
            <hgroup>
                <h1 id="site-title"><span><a href="<?php%20echo%20esc_url(%20home_url(%20'/'%20)%20);%20?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></span></h1>
                <h2 id="site-description"><?php bloginfo( 'description' ); ?></h2>
            </hgroup>

            <?php // Check to see if the header image has been removed
                $header_image = get_header_image();
                if ( $header_image ) :
                    // Compatibility with versions of WordPress prior to 3.4.
                    if ( function_exists( 'get_custom_header' ) ) {
                        // We need to figure out what the minimum width should be for our featured image.
                        // This result would be the suggested width if the theme were to implement flexible widths.
                        $header_image_width = get_theme_support( 'custom-header', 'width' );
                    } else {
                        $header_image_width = HEADER_IMAGE_WIDTH;
                    }
                    ?>
            <a href="<?php%20echo%20esc_url(%20home_url(%20'/'%20)%20);%20?>">
                <?php // The header image
                    // Check if this is a post or page, if it has a thumbnail, and if it's a big one
                    if ( is_singular() && has_post_thumbnail( $post->ID ) &&
                            ( /* $src, $width, $height */ $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), array( $header_image_width, $header_image_width ) ) ) &&
                            $image[1] >= $header_image_width ) :
                        // Houston, we have a new header image!
                        echo get_the_post_thumbnail( $post->ID, 'post-thumbnail' );
                    else :
                        // Compatibility with versions of WordPress prior to 3.4.
                        if ( function_exists( 'get_custom_header' ) ) {
                            $header_image_width  = get_custom_header()->width;
                            $header_image_height = get_custom_header()->height;
                        } else {
                            $header_image_width  = HEADER_IMAGE_WIDTH;
                            $header_image_height = HEADER_IMAGE_HEIGHT;
                        }
                        ?>
                    <img src="<?php%20header_image();%20?>"    style="max-width:90%" height="<?php echo $header_image_height; ?>" alt="">
                <?php endif; // end check for featured image or standard header ?>
            </a>
            <?php endif; // end check for removed header image ?>

            <?php // Has the text been hidden?
                if ( 'blank' == get_header_textcolor() ) :
            ?>
                <div class="only-search<?php if ( $header_image ) : ?> with-image<?php endif; ?>">
                <?php get_search_form(); ?>
                </div>
            <?php else :
            ?>
                <?php get_search_form(); ?>
            <?php endif; ?>

            <nav id="access" role="navigation">
                <h3 class="assistive-text"><?php _e( 'Main menu', 'twentyeleven' ); ?></h3>
                <?php /* Allow screen readers / text browsers to skip the navigation menu and get right to the good stuff. */ ?>
                <div class="skip-link"><a class="assistive-text" href="#content" title="<?php esc_attr_e( 'Skip to primary content', 'twentyeleven' ); ?>"><?php _e( 'Skip to primary content', 'twentyeleven' ); ?></a></div>
                <div class="skip-link"><a class="assistive-text" href="#secondary" title="<?php esc_attr_e( 'Skip to secondary content', 'twentyeleven' ); ?>"><?php _e( 'Skip to secondary content', 'twentyeleven' ); ?></a></div>
                <?php /* Our navigation menu. If one isn't filled out, wp_nav_menu falls back to wp_page_menu. The menu assigned to the primary location is the one used. If one isn't assigned, the menu with the lowest ID is used. */ ?>
                <?php wp_nav_menu( array( 'theme_location' => 'primary' ) ); ?>
            </nav><!-- #access -->
    </header><!-- #branding -->


    <div id="main">

 <div class="clear">
                 
              
              
        
            </div>
</div>
</div>
</div>

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