免插件添加WordPress博客的移动网站样式

虫虫博客在很早之前针对手机客户端做过适配，不过一直用百度的siteapp实现。今天突然发现百度siteapp打开很慢，而且打开后还提示危险。搜索发现网上很多用户和我的情况类似，而且是在2个星期前就已经发生。很多人猜测百度可能已经放弃siteapp项目。我对于百度虽然没有好感，但还是不敢相信他会一点都不通知的就关闭服务。最后我还是决定删掉百度siteapp，就让他去死吧，自己实现移动站的适配。

按照网上教程，稍微做下修改。

第一步：

下载所需文件（下载地址一），解压缩后上传到博客主题的根目录。例如你的博客主题是twentyfifteen，那么主题的根目录类似如下：wp-content/themes/twentyfifteen 。

第二步：

在wordpress后台点击“外观”->“编辑”，选择functions.php模板函数文件编辑。在最后“?>”符号前加入如下代码后保存。

/*
移动站
url: https://zhangnq.com/2514.html
*/
//面包屑
function fairy_breadcrumbs() {
    $delimiter = '»';
    $home = '首页'; 
    $before = '<span>'; 
    $after = '</span>'; 
    if ( !is_home() && !is_front_page() || is_paged() ) {
        echo '<div id="crumbs">';
        global $post;
        $homeLink = get_bloginfo('url');
        echo '<a href="' . $homeLink . '">' . $home . '</a> ' . $delimiter . ' ';
        if ( is_category() ) {
            global $wp_query;
            $cat_obj = $wp_query->get_queried_object();
            $thisCat = $cat_obj->term_id;
            $thisCat = get_category($thisCat);
            $parentCat = get_category($thisCat->parent);
            if ($thisCat->parent != 0) echo(get_category_parents($parentCat, TRUE, ' ' . $delimiter . ' '));
            echo $before . ' "' . single_cat_title('', false) . '" 目录下的文章' . $after;
        } else if ( is_single() && !is_attachment() ) {
            if ( get_post_type() != 'post' ) {
                $post_type = get_post_type_object(get_post_type());
                $slug = $post_type->rewrite;
                echo '<a href="' . $homeLink . '/' . $slug['slug'] . '/">' . $post_type->labels->singular_name . '</a> ' . $delimiter . ' ';
                echo $before . get_the_title() . $after;
            } else {
                $cat = get_the_category(); $cat = $cat[0];
                echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
                echo $before . get_the_title() . $after;
            }
        } else if ( !is_single() && !is_page() && get_post_type() != 'post' ) {
            $post_type = get_post_type_object(get_post_type());
            echo $before . $post_type->labels->singular_name . $after;
        }
        if ( get_query_var('paged') ) {
            if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' (';
                echo __('Page') . ' ' . get_query_var('paged');
                if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ')';
    }
    echo '</div>';
    }
}
 
//上下一页
function fanye($query_string){
    global $posts_per_page, $paged;
    $my_query = new WP_Query($query_string ."&posts_per_page=-1");
    $total_posts = $my_query->post_count;
    if(empty($paged))$paged = 1;
    $prev = $paged - 1; 
    $next = $paged + 1; 
    $range = 4; // 修改数字,可以显示更多的分页链接
    $showitems = ($range * 2)+1;
    $pages = ceil($total_posts/$posts_per_page);
    if(1 != $pages){
        echo "<div>";
        echo ($paged > 1 && $showitems < $pages)? "<ul><a href='".get_pagenum_link($prev)."'>上一页</a>":"</ul>"; 
        echo ($paged < $pages && $showitems < $pages) ? "<ul><a id='next' href='".get_pagenum_link($next)."'>下一页</a>" :"</ul>";
        echo "</div>";
    }
}
 
//自动关键词
function auto_keywords() {
    global $s, $post;
    $keywords = '';
    if ( is_single() ) {
        if ( get_the_tags( $post->ID ) ) {
            foreach ( get_the_tags( $post->ID ) as $tag ) $keywords .= $tag->name . ', ';
        }
        foreach ( get_the_category( $post->ID ) as $category ) $keywords .= $category->cat_name . ', ';
        $keywords = substr_replace( $keywords , '' , -2);
    } elseif ( is_home () ) { 
        $keywords = '修改成自己网站的关键词......'; // 首頁要自己加
    } elseif ( is_tag() ) { 
        $keywords = single_tag_title('', false);
    } elseif ( is_category() ) { 
        $keywords = single_cat_title('', false);
    } elseif ( is_search() ) { 
        $keywords = esc_html( $s, 1 );
    } else { 
        $keywords = trim( wp_title('', false) );
    }
    if ( $keywords ) {
        echo '<meta name="keywords" content="'.$keywords.'" />';
    }
}
 
//自动描述
function auto_description() {
    global $s, $post;
    $description = '';
    $blog_name = get_bloginfo('name');
    if ( is_singular() ) {
        if( !empty( $post->post_excerpt ) ) {
        $text = $post->post_excerpt;
    } else {
        $text = $post->post_content;
    }
    $description = trim( str_replace( array( "\r\n", "\r", "\n", "　", " "), " ", str_replace( "\"", "'", strip_tags( $text ) ) ) );
    if ( !( $description ) ) $description = $blog_name . " - " . trim( wp_title('', false) );
    } elseif ( is_home () ) { 
        $description = $blog_name . " - 修改成自己网站的描述......"; // 首頁要自己加
    } elseif ( is_tag() ) { 
        $description = $blog_name . "有关 '" . single_tag_title('', false) . "' 的文章";
    } elseif ( is_category() ) { 
        $description = $blog_name . "有关 '" . single_cat_title('', false) . "' 的文章";
    } elseif ( is_archive() ) { 
        $description = $blog_name . "在: '" . trim( wp_title('', false) ) . "' 的文章";
    } elseif ( is_search() ) { 
        $description = $blog_name . ": '" . esc_html( $s, 1 ) . "' 的搜索結果";
    } else { 
        $description = $blog_name . "有关 '" . trim( wp_title('', false) ) . "' 的文章";
    }
    $description = mb_substr( $description, 0, 220, 'utf-8' ) . '..';
 
    echo '<meta name="description" content="'.$description.'" />';
}
//判断移动设备
function is_mobile() {
    $user_agent = $_SERVER['HTTP_USER_AGENT'];
    $mobile_agents = Array("240x320","acer","acoon","acs-","abacho","ahong","airness","alcatel","amoi","android","applewebkit/525","applewebkit/532","asus","audio","au-mic","avantogo","becker","benq","bilbo","bird","blackberry","blazer","bleu","cdm-","compal","coolpad","danger","dbtel","dopod","elaine","eric","etouch","fly ","fly_","fly-","go.web","goodaccess","gradiente","grundig","haier","hedy","hitachi","htc","huawei","hutchison","inno","ipad","ipaq","ipod","jbrowser","kddi","kgt","kwc","lenovo","lg ","lg2","lg3","lg4","lg5","lg7","lg8","lg9","lg-","lge-","lge9","longcos","maemo","mercator","meridian","micromax","midp","mini","mitsu","mmm","sijitao.net","mmp","mobi","mot-","moto","nec-","netfront","newgen","nexian","nf-browser","nintendo","nitro","nokia","nook","novarra","obigo","palm","panasonic","pantech","philips","phone","pg-","playstation","pocket","pt-","qc-","qtek","rover","sagem","sama","samu","sanyo","samsung","sch-","scooter","sec-","sendo","sgh-","sharp","siemens","sie-","softbank","sony","spice","sprint","spv","symbian","tablet","talkabout","tcl-","teleca","telit","tianyu","tim-","toshiba","tsm","up.browser","utec","utstar","verykool","virgin","vk-","voda","voxtel","vx","wap","wellco","wig browser","wii","windows ce","wireless","xda","xde","zte");
    $is_mobile = false;
    foreach ($mobile_agents as $device) {
        if (stristr($user_agent, $device)) {
            $is_mobile = true;
            break;
        }
    }
    return $is_mobile;
}
/*移动站界面结束*/

第三步：

在wordpress后台点击“外观”->“编辑”，选择index.php修改首页文件。在文件最前面添加如下代码。

<?php if( !is_mobile() ){ ?>

在文件最后添加如下代码后保存。

<?php } else{ ?>
<?php get_template_part(“indexForMobile”);?>
<?php } ?>

还是在外观编辑页面，选择single.php编辑文章内容页文件。和首页一样，在文件最前面添加如下代码。

<?php if( !is_mobile() ){ ?>

在最后添加如下代码保存。

<?php } else{ ?>
<?php get_template_part("singleForMobile");?>
<?php } ?>

这样首页和文章内容的移动适配页面就做好了，感兴趣的话按照类似思路可以修改其他页面。实际试了下修改后效果还不错，文章分类列表页、翻页等都正常，效果如下图。

最后博主吐槽下，在中国网络环境，免费东西真的很不靠谱。先是360关闭静态资源和字体库，又是关闭网盘。还有即使像百度这样的大公司，对产品对用户的态度也是让人喜欢不起来，无声无息服务就不可用了。

相关链接：

http://www.chinaz.com/web/2016/1017/595438.shtml

https://www.wpdaxue.com/add-mobile-style.html