无需插件：用 WP CLI 查找缺失特色图片和 alt 文本的博客文章Find blog posts with missing featured images - and missing alt text - without a plugin

WordPress 有“特色图片”的概念，这些图片在社交媒体上分享博客文章时会显示出来，在某些主题中还会作为“英雄图”出现。

如何快速轻松地找到没有特色图片的文章？

为此，我使用 WP CLI——它允许你通过命令行运行复杂的 WordPress 操作和查询。安装 WP CLI 后就可以开始使用了。

缺失的图片

在命令行中运行：

wp eval 'foreach(get_posts(array("post_type"=>"post","post_status"=>array("publish"),"posts_per_page"=>-1,)) as $post){if(get_the_post_thumbnail($post)==""){$post_type_object=get_post_type_object($post->post_type);$link=admin_url(sprintf($post_type_object->_edit_link . "&action=edit", $post->ID));echo $post->post_date . " " . $link . " " . $post->post_title . "\n";}}'

以下是代码，格式稍微更易读一些：

foreach ( 
   get_posts( 
       array( "post_type"      => "post", 
              "post_status"    => array("publish"), 
              "posts_per_page" => -1,
       ) 
   ) as $post) { 
      if( get_the_post_thumbnail( $post)== "" ) { 
         $post_type_object = get_post_type_object( $post->post_type ); 
         $link = admin_url( sprintf( $post_type_object->_edit_link . "&action=edit", $post->ID ) ) ;
         echo $post->post_date . " " . $link . " " . $post->post_title . "\n";
      } 
}

这将输出：

2024-05-02 12:34:11 https://example.com/wp-admin/post.php?post=123&action=edit "A post about sausages" 
2023-09-13 20:55:52 https://example.com/wp-admin/post.php?post=456&action=edit "I like cheese"
2021-12-31 15:43:33 https://example.com/wp-admin/post.php?post=789&action=edit "Touching computers"

然后你可以逐一编辑这些文章，添加特色图片。

缺失的替代文本（Alt Text）

添加替代文本意味着无法看到图片的人仍能理解图片所代表的内容。以下是一条命令，用于查找所有缺少替代文本的特色图片：

wp eval 'foreach (get_posts(array("post_type"=>"post","post_status"=>array("publish"),"posts_per_page" => -1,)) as $post){if(simplexml_load_string(get_the_post_thumbnail($post))["alt"]==""){$post_type_object=get_post_type_object($post->post_type);$link=admin_url(sprintf($post_type_object->_edit_link . "&action=edit",$post->ID));echo $post->post_date . " " . $link . " " . $post->post_title . "\n";}}'

以更易读的形式如下：

foreach (
   get_posts( 
      array( "post_type"      => "post", 
             "post_status"    => array("publish"), 
             "posts_per_page" => -1,
           ) 
   ) as $post) { 
      if( simplexml_load_string( get_the_post_thumbnail( $post ) )["alt"] == "") { 
         $post_type_object = get_post_type_object( $post->post_type ); 
         $link = admin_url( sprintf( $post_type_object->_edit_link . "&action=edit", $post->ID ) ) ;
         echo $post->post_date . " " . $link . " " . $post->post_title . "\n"; 
      } 
}

同样，它会列出文章的发布时间、编辑链接和标题。

现在，请原谅我，我有大约 873 篇文章需要更新 🤯