详解WordPress开发中wp_title()函数的用法,wordpresswp_title
详解WordPress开发中wp_title()函数的用法,wordpresswp_title
wp_title 函数在 WordPress 中是用来显示文章、页面、分类等等等等标题的一个函数,但在首页索引,该函数将不显示任何的东西。该函数在 WordPress 官方主题中一直被使用,但目前很多定制的主题中这个函数总是为忽视。
函数意义详解
wp_title 函数用来显示页面的标题,如在文章页面,则显示文章标题;在分类页面,则显示分类名称,但在首页索引,该函数将不显示任何的东西。
有点像 WordPress 中的 get_the_title 和 single_cat_title()这两个函数的自适应用法(自动判断是页面、文章还是分类、归档、标签)。
函数声明
有点长,希望您能耐心看一遍,哪怕只有那么一遍。
/** * Display or retrieve page title for all areas of blog. * * By default, the page title will display the separator before the page title, * so that the blog title will be before the page title. This is not good for * title display, since the blog title shows up on most tabs and not what is * important, which is the page that the user is looking at. * * There are also SEO benefits to having the blog title after or to the 'right' * or the page title. However, it is mostly common sense to have the blog title * to the right with most browsers supporting tabs. You can achieve this by * using the seplocation parameter and setting the value to 'right'. This change * was introduced around 2.5.0, in case backwards compatibility of themes is * important. * * @since 1.0.0 * * @param string $sep Optional, default is '»'. How to separate the various items within the page title. * @param bool $display Optional, default is true. Whether to display or retrieve title. * @param string $seplocation Optional. Direction to display title, 'right'. * @return string|null String on retrieve, null when displaying. */ function wp_title($sep = '»', $display = true, $seplocation = '') { global $wpdb, $wp_locale; $m = get_query_var('m'); $year = get_query_var('year'); $monthnum = get_query_var('monthnum'); $day = get_query_var('day'); $search = get_query_var('s'); $title = ''; $t_sep = '%WP_TITILE_SEP%'; // Temporary separator, for accurate flipping, if necessary // If there is a post if ( is_single() || ( is_home() && !is_front_page() ) || ( is_page() && !is_front_page() ) ) { $title = single_post_title( '', false ); } // If there's a category or tag if ( is_category() || is_tag() ) { $title = single_term_title( '', false ); } // If there's a taxonomy if ( is_tax() ) { $term = get_queried_object(); $tax = get_taxonomy( $term->taxonomy ); $title = single_term_title( $tax->labels->name . $t_sep, false ); } // If there's an author if ( is_author() ) { $author = get_queried_object(); $title = $author->display_name; } // If there's a post type archive if ( is_post_type_archive() ) $title = post_type_archive_title( '', false ); // If there's a month if ( is_archive() && !empty($m) ) { $my_year = substr($m, 0, 4); $my_month = $wp_locale->get_month(substr($m, 4, 2)); $my_day = intval(substr($m, 6, 2)); $title = $my_year . ( $my_month ? $t_sep . $my_month : '' ) . ( $my_day ? $t_sep . $my_day : '' ); } // If there's a year if ( is_archive() && !empty($year) ) { $title = $year; if ( !empty($monthnum) ) $title .= $t_sep . $wp_locale->get_month($monthnum); if ( !empty($day) ) $title .= $t_sep . zeroise($day, 2); } // If it's a search if ( is_search() ) { /* translators: 1: separator, 2: search phrase */ $title = sprintf(__('Search Results %1$s %2$s'), $t_sep, strip_tags($search)); } // If it's a 404 page if ( is_404() ) { $title = __('Page not found'); } $prefix = ''; if ( !empty($title) ) $prefix = " $sep "; // Determines position of the separator and direction of the breadcrumb if ( 'right' == $seplocation ) { // sep on right, so reverse the order $title_array = explode( $t_sep, $title ); $title_array = array_reverse( $title_array ); $title = implode( " $sep ", $title_array ) . $prefix; } else { $title_array = explode( $t_sep, $title ); $title = $prefix . implode( " $sep ", $title_array ); } $title = apply_filters('wp_title', $title, $sep, $seplocation); // Send it out if ( $display ) echo $title; else return $title; }
用法
<?php wp_title( $sep, $echo, $seplocation ); ?>
参数详解
- $sep:分隔符;
- $echo:是否显示;
- $seplocation:分隔符所在位置(左还是右,只接受'right',如果不是right自动判定为左)
总结
WordPress 中相同功能的函数有很多,都是从基层到高级不断的经过封装最后到达使用层的,当然如果我们需要一些灵活用法的话,我们可以直接用中间那层的函数,如果我们懒的话我们可以直接使用最高级的那层函数,诸如本函数 wp_title ,其实这个函数我们从源代码来看, wp 替我们针对 分类、标签、文章、归档、作者、页面等多种类型的页面进行了判断,并根据不同页面调用不同的标题函数来达到目的。
如果有时间,您可以对下面几个函数进行深入研究一下,一遍更灵活的进行seo
single_post_title 文章页面提取标题的函数
single_term_title tag(标签)、cat(分类)、日期、提取标题的函数 类似于 single_cat_title()函数
get_queried_object 作者页面提取对象的函数(对象中有作者名)
post_type_archive_title()规档等等提取标题的函数
还等什么?
GO GO GO !
您可能感兴趣的文章:
- WordPress开发中用于标题显示的相关函数使用解析
- WordPress中调试缩略图的相关PHP函数使用解析
- 配置解决Nginx服务器中WordPress路径不自动加斜杠问题
- WordPress中用于获取搜索表单的PHP函数使用解析
- 在WordPress中使用wp_count_posts函数来统计文章数量
- 详解WordPress中调用评论模板和循环输出评论的PHP函数
- 详解WordPress中分类函数wp_list_categories的使用
- WordPress中限制非管理员用户在文章后只能评论一次
- 详解WordPress中创建和添加过滤器的相关PHP函数

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











There are four ways to adjust the WordPress article list: use theme options, use plugins (such as Post Types Order, WP Post List, Boxy Stuff), use code (add settings in the functions.php file), or modify the WordPress database directly.

To build a website using WordPress hosting, you need to: select a reliable hosting provider. Buy a domain name. Set up a WordPress hosting account. Select a topic. Add pages and articles. Install the plug-in. Customize your website. Publish your website.

WordPress IP blocking plugin selection is crucial. The following types can be considered: based on .htaccess: efficient, but complex operation; database operation: flexible, but low efficiency; firewall: high security performance, but complex configuration; self-written: highest control, but requires more technical level.

A step-by-step guide to replacing a header image of WordPress: Log in to the WordPress dashboard and navigate to Appearance >Theme. Select the topic you want to edit and click Customize. Open the Theme Options panel and look for the Site Header or Header Image options. Click the Select Image button and upload a new head image. Crop the image and click Save and Crop. Click the Save and Publish button to update the changes.

You can view the WordPress front-end by logging into the dashboard and switching to the View Sites tab; automate the viewing process with a headless browser; installing the WordPress plugin to preview the front-end within the dashboard; viewing the front-end via a local URL (if WordPress is set locally).

WordPress editing dates can be canceled in three ways: 1. Install the Enable Post Date Disable plug-in; 2. Add code in the functions.php file; 3. Manually edit the post_modified column in the wp_posts table.

Importing WordPress source code requires the following steps: Create a sub-theme for theme modification. Import the source code and overwrite the files in the sub-topic. Activate the sub-theme to make it effective. Test the changes to make sure everything works.

The steps to create a custom header in WordPress are as follows: Edit the theme file "header.php". Add your website name and description. Create a navigation menu. Add a search bar. Save changes and view your custom header.
