{"id":4979,"date":"2026-01-26T14:39:59","date_gmt":"2026-01-26T06:39:59","guid":{"rendered":"https:\/\/www.zhaozhao123.cn\/wpcms\/bjjc\/4979.html"},"modified":"2026-01-26T14:42:21","modified_gmt":"2026-01-26T06:42:21","slug":"%e4%b8%bawordpress%e5%88%86%e7%b1%bb%e5%88%9b%e5%bb%ba%e5%9b%be%e7%89%87%e8%87%aa%e5%ae%9a%e4%b9%89%e5%ad%97%e6%ae%b5%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"bjjc","link":"https:\/\/www.zhaozhao123.cn\/wpcms\/bjjc\/4979.html","title":{"rendered":"\u4e3aWordPress\u5206\u7c7b\u521b\u5efa\u56fe\u7247\u81ea\u5b9a\u4e49\u5b57\u6bb5\u7684\u65b9\u6cd5"},"content":{"rendered":"

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\/**\n * \u4e3a\u5206\u7c7b\u8868\u5355\u6dfb\u52a0\u56fe\u7247\u5b57\u6bb5\n *\/\nfunction zzw_add_taxonomy_image_field($term) {\n    $image_id = get_term_meta($term->term_id, 'zzw_category_image_id', true);\n    $image_url = $image_id ? wp_get_attachment_image_url($image_id, 'thumbnail') : '';\n    ?>\n    <div class=\"form-field\">\n        <label for=\"zzw_category_image\">\u5206\u7c7b\u56fe\u7247<\/label>\n        <input type=\"hidden\" id=\"zzw_category_image_id\" name=\"zzw_category_image_id\" value=\"<?php echo esc_attr($image_id); ?>\" \/>\n        <img id=\"zzw_category_image_preview\" src=\"<?php echo esc_url($image_url); ?>\" style=\"max-width:100px; height:auto; display: <?php echo $image_url ? 'block' : 'none'; ?>; margin-bottom:10px;\" \/>\n        <div>\n            <button type=\"button\" class=\"button zzw_upload_image_button\">\u4e0a\u4f20\u56fe\u7247<\/button>\n            <button type=\"button\" class=\"button zzw_remove_image_button\" style=\"display: <?php echo $image_url ? 'inline-block' : 'none'; ?>;\">\u79fb\u9664\u56fe\u7247<\/button>\n        <\/div>\n        <p class=\"description\">\u4e3a\u6b64\u5206\u7c7b\u8bbe\u7f6e\u4e00\u5f20\u4ee3\u8868\u6027\u56fe\u7247\u3002<\/p>\n    <\/div>\n    <script>\n    jQuery(document).ready(function($){\n        var frame;\n        $('.zzw_upload_image_button').click(function(e) {\n            e.preventDefault();\n            if (frame) { frame.open(); return; }\n            frame = wp.media({ title: '\u9009\u62e9\u6216\u4e0a\u4f20\u56fe\u7247', button: { text: '\u4f7f\u7528\u6b64\u56fe\u7247' }, multiple: false });\n            frame.on('select', function() {\n                var attachment = frame.state().get('selection').first().toJSON();\n                $('#zzw_category_image_id').val(attachment.id);\n                $('#zzw_category_image_preview').attr('src', attachment.url).show();\n                $('.zzw_remove_image_button').show();\n            });\n            frame.open();\n        });\n        $('.zzw_remove_image_button').click(function(e) {\n            e.preventDefault();\n            $('#zzw_category_image_id').val('');\n            $('#zzw_category_image_preview').hide().attr('src', '');\n            $(this).hide();\n        });\n    });\n    <\/script>\n    <?php\n}\nadd_action('category_add_form_fields', 'zzw_add_taxonomy_image_field');\nadd_action('category_edit_form_fields', function($term) {\n    ?>\n    <tr class=\"form-field\">\n        <th scope=\"row\"><label for=\"zzw_category_image\">\u5206\u7c7b\u56fe\u7247<\/label><\/th>\n        <td>\n            <?php\n            $image_id = get_term_meta($term->term_id, 'zzw_category_image_id', true);\n            $image_url = $image_id ? wp_get_attachment_image_url($image_id, 'thumbnail') : '';\n            ?>\n            <input type=\"hidden\" id=\"zzw_category_image_id\" name=\"zzw_category_image_id\" value=\"<?php echo esc_attr($image_id); ?>\" \/>\n            <img id=\"zzw_category_image_preview\" src=\"<?php echo esc_url($image_url); ?>\" style=\"max-width:100px; height:auto; display: <?php echo $image_url ? 'block' : 'none'; ?>; margin-bottom:10px;\" \/>\n            <div>\n                <button type=\"button\" class=\"button zzw_upload_image_button\">\u4e0a\u4f20\u56fe\u7247<\/button>\n                <button type=\"button\" class=\"button zzw_remove_image_button\" style=\"display: <?php echo $image_url ? 'inline-block' : 'none'; ?>;\">\u79fb\u9664\u56fe\u7247<\/button>\n            <\/div>\n            <p class=\"description\">\u4e3a\u6b64\u5206\u7c7b\u8bbe\u7f6e\u4e00\u5f20\u4ee3\u8868\u6027\u56fe\u7247\u3002<\/p>\n        <\/td>\n    <\/tr>\n    <script>\n        \/\/ \u6b64\u5904JavaScript\u4ee3\u7801\u4e0e\u4e0a\u65b9\u76f8\u540c\uff0c\u4e3a\u4fdd\u6301\u529f\u80fd\u72ec\u7acb\u9700\u5728\u7f16\u8f91\u9875\u518d\u6b21\u8f93\u51fa\uff08\u5b9e\u9645\u5f00\u53d1\u5efa\u8bae\u5c01\u88c5\uff09\n        jQuery(document).ready(function($){\n            var frame;\n            $('.zzw_upload_image_button').click(function(e) { e.preventDefault(); if (frame) { frame.open(); return; } frame = wp.media({ title: '\u9009\u62e9\u6216\u4e0a\u4f20\u56fe\u7247', button: { text: '\u4f7f\u7528\u6b64\u56fe\u7247' }, multiple: false }); frame.on('select', function() { var attachment = frame.state().get('selection').first().toJSON(); $('#zzw_category_image_id').val(attachment.id); $('#zzw_category_image_preview').attr('src', attachment.url).show(); $('.zzw_remove_image_button').show(); }); frame.open(); });\n            $('.zzw_remove_image_button').click(function(e) { e.preventDefault(); $('#zzw_category_image_id').val(''); $('#zzw_category_image_preview').hide().attr('src', ''); $(this).hide(); });\n        });\n    <\/script>\n    <?php\n});\n\n\/**\n * \u4fdd\u5b58\u5206\u7c7b\u56fe\u7247\u5b57\u6bb5\u6570\u636e\n *\/\nfunction zzw_save_taxonomy_image_field($term_id) {\n    if (isset($_POST['zzw_category_image_id'])) {\n        update_term_meta($term_id, 'zzw_category_image_id', absint($_POST['zzw_category_image_id']));\n    }\n}\nadd_action('created_category', 'zzw_save_taxonomy_image_field');\nadd_action('edited_category', 'zzw_save_taxonomy_image_field');<\/code><\/pre>
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\u5b66\u4e60\u6210\u672c<\/td>\u4f4e<\/td>\u9ad8<\/td><\/tr><\/tbody><\/table><\/figure>
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\u524d\u7aef\u8c03\u53d6\u4f9d\u8d56\u4e8e\u4e24\u4e2a\u6838\u5fc3WordPress\u51fd\u6570\uff1aget_queried_object()<\/code>\u7528\u4e8e\u83b7\u53d6\u5f53\u524d\u5206\u7c7b\u9875\u9762\u7684\u5206\u7c7b\u5bf9\u8c61\uff0c\u6216get_the_terms()<\/code>\u7528\u4e8e\u83b7\u53d6\u6587\u7ae0\u6240\u5c5e\u5206\u7c7b\uff1bget_term_meta()<\/code>\u7528\u4e8e\u83b7\u53d6\u4fdd\u5b58\u7684\u56fe\u7247\u9644\u4ef6ID\u3002<\/p>
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\/**\n * \u83b7\u53d6\u6307\u5b9a\u5206\u7c7b\u7684\u56fe\u7247HTML\n * @param int $term_id \u5206\u7c7bID\n * @param string $size \u56fe\u7247\u5c3a\u5bf8\uff0c\u9ed8\u8ba4\u4e3a'medium'\n * @return string \u56fe\u7247HTML\u6216\u7a7a\u5b57\u7b26\u4e32\n *\/\nfunction zzw_get_category_image($term_id, $size = 'medium') {\n    $image_id = get_term_meta($term_id, 'zzw_category_image_id', true);\n    if ($image_id) {\n        return wp_get_attachment_image($image_id, $size, false, array('class' => 'zzw-category-image'));\n    }\n    return '';\n}<\/code><\/pre>
\u4f7f\u7528\u573a\u666f\u5b9e\u4f8b<\/h3>
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\u5206\u7c7b\u5f52\u6863\u9875\u5934\u90e8\u5c55\u793a<\/strong><\/td>\u5728\u5206\u7c7b\u63cf\u8ff0\u4e0a\u65b9\u663e\u773c\u4f4d\u7f6e\u5c55\u793a\u5206\u7c7b\u56fe\u7247\u3002<\/td><?php $current_term = get_queried_object(); echo zzw_get_category_image($current_term->term_id, 'large'); ?><\/code><\/td><\/tr>
\u6587\u7ae0\u5355\u9875\u663e\u793a\u6240\u5c5e\u5206\u7c7b\u56fe\u7247<\/strong><\/td>\u5728\u6587\u7ae0\u5185\u5bb9\u4e0b\u65b9\u5c55\u793a\u5176\u6240\u5c5e\u7b2c\u4e00\u4e2a\u5206\u7c7b\u7684\u56fe\u7247\u3002<\/td><?php $categories = get_the_terms(get_the_ID(), 'category'); if ($categories && !is_wp_error($categories)) { echo zzw_get_category_image($categories[0]->term_id); } ?><\/code><\/td><\/tr>
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<?php\n$current_term = get_queried_object();\nif ($current_term && !is_wp_error($current_term)) {\n    $image_id = get_term_meta($current_term->term_id, 'zzw_category_image_id', true);\n    if ($image_id) {\n        echo wp_get_attachment_image($image_id, 'medium', false, array('class' => 'zzw-category-thumbnail'));\n    }\n}\n?><\/code><\/pre>
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\u4e00\u79cd\u9ad8\u6548\u65b9\u5f0f\u662f\u5229\u7528 render_block<\/code> \u8fc7\u6ee4\u5668\u5728\u5206\u7c7b\u5f52\u6863\u6807\u9898\u524d\u52a8\u6001\u63d2\u5165\u56fe\u7247\u3002\u4ee5\u4e0b\u4e3a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>
\/**\n * \u5728\u5757\u4e3b\u9898\u7684\u5206\u7c7b\u5f52\u6863\u6807\u9898\u524d\u8f93\u51fa\u5206\u7c7b\u56fe\u7247\n *\/\nfunction zzw_prepend_category_image_to_title($block_content, $block) {\n    \/\/ \u4ec5\u9488\u5bf9\u6838\u5fc3\u5f52\u6863\u6807\u9898\u533a\u5757\u4e14\u5728\u5206\u7c7b\u9875\u9762\n    if (!is_admin() && $block['blockName'] === 'core\/term-description' && is_category()) {\n        $current_term = get_queried_object();\n        $image_id = get_term_meta($current_term->term_id, 'zzw_category_image_id', true);\n        if ($image_id) {\n            $image_html = wp_get_attachment_image($image_id, 'medium', false, array('class' => 'zzw-category-thumbnail'));\n            $block_content = $image_html . $block_content;\n        }\n    }\n    return $block_content;\n}\nadd_filter('render_block', 'zzw_prepend_category_image_to_title', 10, 2);<\/code><\/pre>
\u603b\u7ed3<\/h2>
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5<\/td>\u524d\u7aef\u8c03\u53d6\u51fd\u6570<\/strong>\uff1a\u4f7f\u7528 zzw_get_category_image()<\/code> \u51fd\u6570\u5c01\u88c5\u8c03\u53d6\u903b\u8f91\uff0c\u4fbf\u4e8e\u5728\u4e3b\u9898\u4e2d\u91cd\u590d\u4f7f\u7528\u3002<\/td><\/tr>
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7<\/td>\u7ecf\u5178\u4e3b\u9898\u8c03\u7528<\/strong>\uff1a\u5728\u7ecf\u5178\u4e3b\u9898\u6a21\u677f\u6587\u4ef6\u4e2d\uff0c\u76f4\u63a5\u4f7f\u7528 get_term_meta()<\/code> \u548c wp_get_attachment_image()<\/code> \u51fd\u6570\u8f93\u51fa\u56fe\u7247\u3002<\/td><\/tr>
8<\/td>\u5757\u4e3b\u9898\u8c03\u7528<\/strong>\uff1a\u5728\u5757\u4e3b\u9898\u4e2d\uff0c\u901a\u8fc7 render_block<\/code> \u8fc7\u6ee4\u5668\u52a8\u6001\u63d2\u5165\u56fe\u7247\uff0c\u6216\u6ce8\u518c\u81ea\u5b9a\u4e49\u533a\u5757\u5b9e\u73b0\u3002<\/td><\/tr>
9<\/td>\u6838\u5fc3\u6982\u5ff5<\/strong>\uff1a\u7406\u89e3\u81ea\u5b9a\u4e49\u5b57\u6bb5\u6570\u636e\u4ee5\u5143\u6570\u636e\uff08term meta\uff09\u5f62\u5f0f\u5b58\u50a8\uff0c\u8c03\u7528\u65f6\u9700\u83b7\u53d6\u5f53\u524d\u5206\u7c7b\u5bf9\u8c61\u53ca\u5176\u5143\u6570\u636e\u3002<\/td><\/tr>
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