WordPress 移除归档页面的“分类:”修改成自定义the_archive_title输出

今天有朋友问了一个问题,如何移除归档页面分类或标签名称前面的“分类:”和“标签:”,如下图:

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首先,我们要先了解这两个字是通过什么函数调用出来的,在比较正规的主题中,一般会用以下代码在归档页面输出标题:

<?php the_archive_title( '<h1 class="page-title">', '</h1>' ); ?>

而这个 the_archive_title() 函数的代码为:

function the_archive_title( $before = '', $after = '' ) {    $title = get_the_archive_title();     if ( ! empty( $title ) ) {        echo $before . $title . $after;    }}

可以看到,调用的是  get_the_archive_title() 的内容,我们再来看看这个  get_the_archive_title() 的代码:

function get_the_archive_title() {    if ( is_category() ) {        /* translators: Category archive title. %s: Category name */        $title = sprintf( __( 'Category: %s' ), single_cat_title( '', false ) );    } elseif ( is_tag() ) {        /* translators: Tag archive title. %s: Tag name */        $title = sprintf( __( 'Tag: %s' ), single_tag_title( '', false ) );    } elseif ( is_author() ) {        /* translators: Author archive title. %s: Author name */        $title = sprintf( __( 'Author: %s' ), '<span class="vcard">' . get_the_author() . '</span>' );    } elseif ( is_year() ) {        /* translators: Yearly archive title. %s: Year */        $title = sprintf( __( 'Year: %s' ), get_the_date( _x( 'Y', 'yearly archives date format' ) ) );    } elseif ( is_month() ) {        /* translators: Monthly archive title. %s: Month name and year */        $title = sprintf( __( 'Month: %s' ), get_the_date( _x( 'F Y', 'monthly archives date format' ) ) );    } elseif ( is_day() ) {        /* translators: Daily archive title. %s: Date */        $title = sprintf( __( 'Day: %s' ), get_the_date( _x( 'F j, Y', 'daily archives date format' ) ) );    } elseif ( is_tax( 'post_format' ) ) {        if ( is_tax( 'post_format', 'post-format-aside' ) ) {            $title = _x( 'Asides', 'post format archive title' );        } elseif ( is_tax( 'post_format', 'post-format-gallery' ) ) {            $title = _x( 'Galleries', 'post format archive title' );        } elseif ( is_tax( 'post_format', 'post-format-image' ) ) {            $title = _x( 'Images', 'post format archive title' );        } elseif ( is_tax( 'post_format', 'post-format-video' ) ) {            $title = _x( 'Videos', 'post format archive title' );        } elseif ( is_tax( 'post_format', 'post-format-quote' ) ) {            $title = _x( 'Quotes', 'post format archive title' );        } elseif ( is_tax( 'post_format', 'post-format-link' ) ) {            $title = _x( 'Links', 'post format archive title' );        } elseif ( is_tax( 'post_format', 'post-format-status' ) ) {            $title = _x( 'Statuses', 'post format archive title' );        } elseif ( is_tax( 'post_format', 'post-format-audio' ) ) {            $title = _x( 'Audio', 'post format archive title' );        } elseif ( is_tax( 'post_format', 'post-format-chat' ) ) {            $title = _x( 'Chats', 'post format archive title' );        }    } elseif ( is_post_type_archive() ) {        /* translators: Post type archive title. %s: Post type name */        $title = sprintf( __( 'Archives: %s' ), post_type_archive_title( '', false ) );    } elseif ( is_tax() ) {        $tax = get_taxonomy( get_queried_object()->taxonomy );        /* translators: Taxonomy term archive title. 1: Taxonomy singular name, 2: Current taxonomy term */        $title = sprintf( __( '%1$s: %2$s' ), $tax->labels->singular_name, single_term_title( '', false ) );    } else {        $title = __( 'Archives' );    }     /**     * Filters the archive title.     *     * @since 4.1.0     *     * @param string $title Archive title to be displayed.     */    return apply_filters( 'get_the_archive_title', $title );}

好长一段代码,注意看倒数第二行代码为:

return apply_filters( 'get_the_archive_title', $title );

此处应用了一个过滤钩子,也就是我们可以通过这个钩子修改 get_the_archive_title() 的内容,从而实现修改 the_archive_title() 输出的内容。

要实现刚才我们说的去掉归档页面的 “分类:”和“标签:”,可以使用下面的代码:

function my_theme_archive_title( $title ) {    if ( is_category() ) {        $title = single_cat_title( '', false );    } elseif ( is_tag() ) {        $title = single_tag_title( '', false );    } elseif ( is_author() ) {        $title = '<span class="vcard">' . get_the_author() . '</span>';    } elseif ( is_post_type_archive() ) {        $title = post_type_archive_title( '', false );    } elseif ( is_tax() ) {        $title = single_term_title( '', false );    }      return $title;} add_filter( 'get_the_archive_title', 'my_theme_archive_title' );

将该代码添加到当前使用的主题的 functions.php 文件即可。

Posted in WordPress建站笔记.