{"id":6680,"date":"2025-11-19T11:33:24","date_gmt":"2025-11-19T03:33:24","guid":{"rendered":"https:\/\/www.yuerwa.com\/?p=6680"},"modified":"2025-11-19T11:33:26","modified_gmt":"2025-11-19T03:33:26","slug":"wordpress%e8%b0%83%e7%94%a8%e6%8c%87%e5%ae%9aid%e5%88%86%e7%b1%bb%e4%b8%8b%e5%86%85%e5%ae%b9%e7%9a%847%e7%a7%8d%e5%ae%9e%e7%8e%b0%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.yuerwa.com\/?p=6680","title":{"rendered":"wordpress\u8c03\u7528\u6307\u5b9aID\u5206\u7c7b\u4e0b\u5185\u5bb9\u76847\u79cd\u5b9e\u73b0\u65b9\u6cd5"},"content":{"rendered":"\n

\u5728WordPress\u4e3b\u9898\u5f00\u53d1\u548c\u5b9a\u5236\u5316\u8fc7\u7a0b\u4e2d\uff0c\u7075\u6d3b\u8c03\u7528\u7279\u5b9a\u5206\u7c7bID\u4e0b\u7684\u5185\u5bb9\u662f\u4e00\u9879\u6838\u5fc3\u6280\u80fd\u3002\u4ee5\u4e0b\u7cfb\u7edf\u4ecb\u7ecd7\u79cd\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u7684\u5b9e\u73b0\u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u573a\u666f\u9700\u6c42\u3002<\/p>\n\n\n\n

\u65b9\u6cd51\uff1aWP_Query\u7c7b(\u6700\u5f3a\u5927\u63a8\u8350)<\/p>\n\n\n\n

\u7279\u70b9\uff1a\u529f\u80fd\u6700\u5b8c\u6574\u3001\u53c2\u6570\u6700\u4e30\u5bcc\uff0c\u652f\u6301\u5206\u9875\u548c\u590d\u6742\u67e5\u8be2\uff0c\u662f\u5b98\u65b9\u63a8\u8350\u7684\u6807\u51c6\u65b9\u5f0f\u3002<\/p>\n\n\n\n

\u57fa\u672c\u4f7f\u7528\u65b9\u6cd5<\/p>\n\n\n\n

<?php\n$args = array(\n    'cat'              => 5,           \/\/ \u6307\u5b9a\u5206\u7c7bID\n    'posts_per_page'   => 10,          \/\/ \u663e\u793a\u6570\u91cf\n    'orderby'          => 'date',      \/\/ \u6392\u5e8f\u5b57\u6bb5\n    'order'            => 'DESC',      \/\/ \u964d\u5e8f\u6392\u5217\n    'post_status'      => 'publish'    \/\/ \u5df2\u53d1\u5e03\u6587\u7ae0\n);\n\n$query = new WP_Query($args);\n\nif ($query->have_posts()) {\n    while ($query->have_posts()) {\n        $query->the_post();\n        the_title('<h2>', '<\/h2>');\n        the_excerpt();\n    }\n} else {\n    echo '<p>\u6ca1\u6709\u627e\u5230\u6587\u7ae0<\/p>';\n}\n\nwp_reset_postdata(); \/\/ \u91cd\u7f6e\u67e5\u8be2\u6570\u636e\n?><\/code><\/pre>\n\n\n\n
\u591a\u5206\u7c7b\u67e5\u8be2\u6280\u5de7<\/p>\n\n\n\n
\/\/ \u5305\u542b\u591a\u4e2a\u5206\u7c7b\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\n'category__in' => array(2, 5, 12),\n\n\/\/ \u5fc5\u987b\u540c\u65f6\u5c5e\u4e8e\u8fd9\u4e9b\u5206\u7c7b\n'category__and' => array(2, 5),\n\n\/\/ \u6392\u9664\u7279\u5b9a\u5206\u7c7b\n'category__not_in' => array(3, 7),<\/code><\/pre>\n\n\n\n
\u9002\u7528\u573a\u666f\uff1a\u4e3b\u9898\u6587\u4ef6\u3001\u521b\u5efa\u591a\u4e2a\u72ec\u7acb\u67e5\u8be2\u3001\u9700\u8981\u5206\u9875\u529f\u80fd\u65f6\u3002<\/p>\n\n\n\n
\u65b9\u6cd52\uff1aget_posts()\u51fd\u6570(\u7b80\u6d01\u7248)<\/p>\n\n\n\n
\u7279\u70b9\uff1aWP_Query\u7684\u7b80\u5316\u5c01\u88c5\uff0c\u8fd4\u56de\u6587\u7ae0\u6570\u7ec4\u800c\u975e\u5bf9\u8c61\uff0c\u9002\u5408\u7b80\u5355\u67e5\u8be2\u3002<\/p>\n\n\n\n
\u57fa\u7840\u7528\u6cd5<\/p>\n\n\n\n
<?php\n$posts = get_posts(array(\n    'category'      => 5,      \/\/ \u5206\u7c7bID\n    'numberposts'   => 5,      \/\/ \u83b7\u53d6\u6570\u91cf(-1\u4e3a\u5168\u90e8)\n    'orderby'       => 'date',\n    'order'         => 'DESC',\n    'post_type'     => 'post'\n));\n\nif ($posts) {\n    foreach ($posts as $post) {\n        setup_postdata($post);\n        echo '<h3><a href=\"' . get_permalink() . '\">' . get_the_title() . '<\/a><\/h3>';\n    }\n    wp_reset_postdata();\n}\n?><\/code><\/pre>\n\n\n\n
\u9002\u7528\u573a\u666f\uff1a\u4fa7\u8fb9\u680f\u5c0f\u5de5\u5177\u3001\u7b80\u5355\u6587\u7ae0\u5217\u8868\u3001\u4e0d\u9700\u8981\u5206\u9875\u65f6\u3002<\/p>\n\n\n\n
\u65b9\u6cd53\uff1aquery_posts()\u51fd\u6570(\u4fee\u6539\u4e3b\u5faa\u73af)<\/p>\n\n\n\n
\u7279\u70b9\uff1a\u76f4\u63a5\u4fee\u6539\u5168\u5c40\u4e3b\u67e5\u8be2\uff0c\u4e0d\u63a8\u8350\u4f7f\u7528\uff0c\u4f46\u5728\u65e7\u4e3b\u9898\u4e2d\u5e38\u89c1\u3002<\/p>\n\n\n\n
\u57fa\u672c\u7528\u6cd5<\/p>\n\n\n\n
<?php\n\/\/ \u8b66\u544a\uff1a\u6b64\u65b9\u6cd5\u4f1a\u6539\u53d8\u4e3b\u5faa\u73af\uff0c\u4f7f\u7528\u540e\u5fc5\u987b\u91cd\u7f6e\nquery_posts('cat=5&posts_per_page=10');\n\nif (have_posts()) {\n    while (have_posts()) {\n        the_post();\n        the_title();\n    }\n}\n\n\/\/ \u5fc5\u987b\u91cd\u7f6e\u67e5\u8be2\nwp_reset_query();\n?><\/code><\/pre>\n\n\n\n
\u6ce8\u610f\u4e8b\u9879\uff1a\u6b64\u65b9\u6cd5\u4f1a\u8986\u76d6\u9875\u9762\u539f\u59cb\u67e5\u8be2\uff0c\u53ef\u80fd\u5bfc\u81f4\u5206\u9875\u548c\u6761\u4ef6\u6807\u7b7e\u5931\u6548\uff0c\u5efa\u8bae\u4f18\u5148\u4f7f\u7528WP_Query\u3002<\/p>\n\n\n\n
\u65b9\u6cd54\uff1apre_get_posts\u94a9\u5b50(\u4fee\u6539\u4e3b\u67e5\u8be2)<\/p>\n\n\n\n
\u7279\u70b9\uff1a\u5728\u67e5\u8be2\u6267\u884c\u524d\u4fee\u6539\u53c2\u6570\uff0c\u63a8\u8350\u7528\u4e8e\u5206\u7c7b\u5f52\u6863\u9875\u7b49\u9700\u8981\u4fee\u6539\u4e3b\u67e5\u8be2\u7684\u573a\u666f\u3002<\/p>\n\n\n\n
\u5728functions.php\u4e2d\u6dfb\u52a0<\/p>\n\n\n\n
\/\/ \u4fee\u6539\u5206\u7c7bID\u4e3a5\u7684\u5b58\u6863\u9875\u663e\u793a\u6570\u91cf\nfunction modify_category_query($query) {\n    if (!is_admin() && $query->is_main_query() && $query->is_category(5)) {\n        $query->set('posts_per_page', 15);\n        $query->set('orderby', 'date');\n    }\n}\nadd_action('pre_get_posts', 'modify_category_query');<\/code><\/pre>\n\n\n\n
\u9002\u7528\u573a\u666f\uff1a\u4fee\u6539\u5206\u7c7b\u5b58\u6863\u9875\u3001\u6807\u7b7e\u9875\u7b49\u4e3b\u67e5\u8be2\u884c\u4e3a\uff0c\u4e0d\u5f71\u54cd\u5176\u4ed6\u67e5\u8be2\u3002<\/p>\n\n\n\n
\u65b9\u6cd55\uff1acategory-{id}.php\u4e3b\u9898\u6587\u4ef6(\u539f\u751f\u652f\u6301)<\/p>\n\n\n\n
\u7279\u70b9\uff1a\u5229\u7528WordPress\u4e3b\u9898\u5c42\u7ea7\uff0c\u4e3a\u7279\u5b9a\u5206\u7c7b\u521b\u5efa\u4e13\u5c5e\u4e3b\u9898\u3002<\/p>\n\n\n\n
\u5b9e\u73b0\u6b65\u9aa4<\/p>\n\n\n\n
\u5728\u4e3b\u9898\u76ee\u5f55\u521b\u5efa\u6587\u4ef6 category-5.php(5\u4e3a\u5206\u7c7bID)<\/p>\n\n\n\n
\u6216\u521b\u5efa category-news.php(news\u4e3a\u5206\u7c7b\u522b\u540d\/slug)<\/p>\n\n\n\n
WordPress\u4f1a\u81ea\u52a8\u4f7f\u7528\u8be5\u4e3b\u9898\u663e\u793a\u5bf9\u5e94\u5206\u7c7b\u5185\u5bb9<\/p>\n\n\n\n
\u4e3b\u9898\u793a\u4f8b<\/p>\n\n\n\n
<?php get_header(); ?>\n\n<h1><?php single_cat_title(); ?><\/h1>\n<?php echo category_description(); ?>\n\n<?php if (have_posts()) : ?>\n    <?php while (have_posts()) : the_post(); ?>\n        <article>\n            <h2><a href=\"<?php the_permalink(); ?>\"><?php the_title(); ?><\/a><\/h2>\n            <?php the_excerpt(); ?>\n        <\/article>\n    <?php endwhile; ?>\n    <?php the_posts_pagination(); ?>\n<?php endif; ?>\n\n<?php get_footer(); ?><\/code><\/pre>\n\n\n\n
\u9002\u7528\u573a\u666f\uff1a\u9700\u8981\u4e3a\u7279\u5b9a\u5206\u7c7b\u8bbe\u8ba1\u72ec\u7279\u5e03\u5c40\u548c\u6837\u5f0f\u65f6\u3002<\/p>\n\n\n\n
\u65b9\u6cd56\uff1a\u81ea\u5b9a\u4e49\u77ed\u4ee3\u7801(\u7f16\u8f91\u5668\u8c03\u7528)<\/p>\n\n\n\n
\u7279\u70b9\uff1a\u5728\u6587\u7ae0\/\u9875\u9762\u7f16\u8f91\u5668\u4e2d\u901a\u8fc7 [category_posts id=”5″] \u5feb\u901f\u8c03\u7528\u3002<\/p>\n\n\n\n
\u5728functions.php\u4e2d\u6dfb\u52a0<\/p>\n\n\n\n
function display_category_posts_shortcode($atts) {\n    $atts = shortcode_atts(array(\n        'category_id'    => '',\n        'posts_per_page' => 5,\n        'orderby'        => 'date',\n        'order'          => 'DESC'\n    ), $atts);\n\n    if (empty($atts['category_id'])) {\n        return '<p>\u8bf7\u63d0\u4f9b\u5206\u7c7bID<\/p>';\n    }\n\n    ob_start();\n    $query = new WP_Query(array(\n        'cat'              => $atts['category_id'],\n        'posts_per_page'   => $atts['posts_per_page'],\n        'orderby'          => $atts['orderby'],\n        'order'            => $atts['order']\n    ));\n\n    if ($query->have_posts()) {\n        echo '<ul class=\"category-posts-list\">';\n        while ($query->have_posts()) {\n            $query->the_post();\n            echo '<li><a href=\"' . get_permalink() . '\">' . get_the_title() . '<\/a><\/li>';\n        }\n        echo '<\/ul>';\n    } else {\n        echo '<p>\u6ca1\u6709\u627e\u5230\u76f8\u5173\u6587\u7ae0<\/p>';\n    }\n\n    wp_reset_postdata();\n    return ob_get_clean();\n}\nadd_shortcode('category_posts', 'display_category_posts_shortcode');<\/code><\/pre>\n\n\n\n
\u4f7f\u7528\u65b9\u5f0f<\/p>\n\n\n\n
[category_posts category_id=\"5\" posts_per_page=\"10\"]<\/code><\/pre>\n\n\n\n
\u9002\u7528\u573a\u666f\uff1a\u975e\u6280\u672f\u4eba\u5458\u9700\u8981\u7075\u6d3b\u5728\u5185\u5bb9\u4e2d\u63d2\u5165\u5206\u7c7b\u6587\u7ae0\u5217\u8868\u3002<\/p>\n\n\n\n
\u65b9\u6cd57\uff1aREST API\u65b9\u5f0f(\u73b0\u4ee3\u5f00\u53d1)<\/p>\n\n\n\n
\u7279\u70b9\uff1a\u524d\u540e\u7aef\u5206\u79bb\u3001\u65e0\u5237\u65b0\u52a0\u8f7d\uff0c\u9002\u5408\u73b0\u4ee3Web\u5e94\u7528\u548c\u79fb\u52a8\u7aef\u3002<\/p>\n\n\n\n
\u4f7f\u7528\u7aef\u70b9URL<\/p>\n\n\n\n
https://wodepress.com\/wp-json\/wp\/v2\/posts?categories=5&per_page=10<\/code><\/pre>\n\n\n\n
JavaScript\u8c03\u7528\u793a\u4f8b<\/p>\n\n\n\n
\/\/ \u83b7\u53d6\u5206\u7c7bID\u4e3a5\u7684\u6700\u65b0\u6587\u7ae0\nfetch('https:\/\/wodepress.com\/wp-json\/wp\/v2\/posts?categories=5&per_page=10')\n    .then(response => response.json())\n    .then(posts => {\n        const container = document.getElementById('posts-container');\n        posts.forEach(post => {\n            container.innerHTML += `\n                <article>\n                    <h3><a href=\"${post.link}\">${post.title.rendered}<\/a><\/h3>\n                    <div>${post.excerpt.rendered}<\/div>\n                <\/article>\n            `;\n        });\n    })\n    .catch(error => console.error('Error:', error));<\/code><\/pre>\n\n\n\n
\u9002\u7528\u573a\u666f\uff1aSPA\u5e94\u7528\u3001AJAX\u52a0\u8f7d\u3001\u79fb\u52a8\u7aefAPI\u8c03\u7528\u3002<\/p>\n\n\n\n
\u65b9\u6cd5\u9009\u62e9\u5bf9\u6bd4\u8868<\/p>\n\n\n\n
\u65b9\u6cd5<\/th>\u4f18\u70b9<\/th>\u7f3a\u70b9<\/th>\u63a8\u8350\u5ea6<\/th>\u9002\u7528\u573a\u666f<\/th><\/tr><\/thead>
WP_Query<\/td>\u529f\u80fd\u6700\u5f3a\u5927\u3001\u652f\u6301\u5206\u9875<\/td>\u4ee3\u7801\u7a0d\u591a<\/td>⭐⭐⭐⭐⭐<\/td>\u4e3b\u9898\u5f00\u53d1\u3001\u590d\u6742\u67e5\u8be2<\/td><\/tr>
get_posts<\/td>\u7b80\u6d01\u3001\u6613\u7528<\/td>\u4e0d\u652f\u6301\u5206\u9875<\/td>⭐⭐⭐⭐<\/td>\u7b80\u5355\u5217\u8868\u3001\u4fa7\u8fb9\u680f<\/td><\/tr>
query_posts<\/td>\u76f4\u63a5\u4fee\u6539\u4e3b\u5faa\u73af<\/td>\u7834\u574f\u4e3b\u67e5\u8be2\u3001\u4e0d\u63a8\u8350<\/td>⭐<\/td>\u65e7\u4e3b\u9898\u7ef4\u62a4<\/td><\/tr>
pre_get_posts<\/td>\u4f18\u96c5\u4fee\u6539\u4e3b\u67e5\u8be2<\/td>\u4ec5\u5f71\u54cd\u4e3b\u5faa\u73af<\/td>⭐⭐⭐⭐⭐<\/td>\u5b58\u6863\u9875\u5b9a\u5236<\/td><\/tr>
category-{id}.php<\/td>WordPress\u539f\u751f\u652f\u6301<\/td>\u9700\u521b\u5efa\u4e3b\u9898\u6587\u4ef6<\/td>⭐⭐⭐⭐<\/td>\u5206\u7c7b\u9875\u5b9a\u5236<\/td><\/tr>
\u77ed\u4ee3\u7801<\/td>\u7f16\u8f91\u5668\u7075\u6d3b\u8c03\u7528<\/td>\u6027\u80fd\u7565\u4f4e<\/td>⭐⭐⭐⭐<\/td>\u5185\u5bb9\u7f16\u8f91<\/td><\/tr>
REST API<\/td>\u524d\u540e\u7aef\u5206\u79bb<\/td>\u9700JavaScript\u57fa\u7840<\/td>⭐⭐⭐⭐<\/td>\u73b0\u4ee3\u5e94\u7528\u5f00\u53d1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u9ad8\u7ea7\u6280\u5de7\u4e0e\u6700\u4f73\u5b9e\u8df5<\/p>\n\n\n\n
1. \u6027\u80fd\u4f18\u5316<\/p>\n\n\n\n
\/\/ \u7981\u7528SQL_CALC_FOUND_ROWS\u63d0\u9ad8\u6027\u80fd\n'no_found_rows' => true,\n\n\/\/ \u53ea\u83b7\u53d6\u9700\u8981\u7684\u5b57\u6bb5\n'fields' => 'ids',\n\n\/\/ \u4f7f\u7528\u7f13\u5b58\n'cache_results' => true,<\/code><\/pre>\n\n\n\n
2. \u83b7\u53d6\u5206\u7c7bID\u7684\u6280\u5de7<\/p>\n\n\n\n
\/\/ \u901a\u8fc7\u5206\u7c7b\u522b\u540d\u83b7\u53d6ID\n$cat_id = get_cat_ID('\u65b0\u95fb\u8d44\u8baf');\n\n\/\/ \u5728\u5206\u7c7b\u9875\u81ea\u52a8\u83b7\u53d6\u5f53\u524dID\n$cat_id = get_queried_object_id();\n\n\/\/ \u901a\u8fc7\u6587\u7ae0\u83b7\u53d6\u6240\u5c5e\u5206\u7c7b\n$categories = get_the_category();\nif ($categories) {\n    $cat_id = $categories[0]->term_id;\n}<\/code><\/pre>\n\n\n\n
3. \u83b7\u53d6\u5b50\u5206\u7c7b\u5185\u5bb9<\/p>\n\n\n\n
\/\/ \u83b7\u53d6\u7236\u5206\u7c7b\u4e0b\u7684\u6240\u6709\u5b50\u5206\u7c7bID\n$child_cats = get_categories(array(\n    'parent' => 5,\n    'hide_empty' => false\n));\n$child_ids = wp_list_pluck($child_cats, 'term_id');\n\n\/\/ \u67e5\u8be2\u5305\u542b\u5b50\u5206\u7c7b\n$args = array(\n    'category__in' => array_merge([5], $child_ids)\n);<\/code><\/pre>\n\n\n\n
4. \u6392\u9664\u7279\u5b9a\u5206\u7c7b<\/p>\n\n\n\n
\/\/ \u6392\u9664ID\u4e3a3\u548c7\u7684\u5206\u7c7b\n'category__not_in' => array(3, 7),<\/code><\/pre>\n\n\n\n
\u91cd\u8981\u63d0\u793a\uff1a\u4fee\u6539\u4ee3\u7801\u524d\u8bf7\u5907\u4efd\u7f51\u7ad9\uff0c\u5efa\u8bae\u5728\u5b50\u4e3b\u9898\u4e2d\u8fdb\u884c\u5f00\u53d1\uff0c\u907f\u514d\u4e3b\u9898\u66f4\u65b0\u540e\u4ee3\u7801\u4e22\u5931\u3002<\/p>\n\n\n\n
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