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用下面的代码可以在删除文章的同时删除文章中的图片,把代码添加到主题functions.php 文件中,步骤-文章删除到垃圾箱-垃圾箱内彻底删除,然后你就发现媒体库里那个文章内的图片已经不见了。
// 删除文章同步删图片 function delete_post_and_attachments($post_ID) { global $wpdb; //删除特色图片 $thumbnails = $wpdb->get_results( "SELECT * FROM $wpdb->postmeta WHERE meta_key = '_thumbnail_id' AND post_id = $post_ID" ); foreach ( $thumbnails as $thumbnail ) { wp_delete_attachment( $thumbnail->meta_value, true ); } //删除图片附件 $attachments = $wpdb->get_results( "SELECT * FROM $wpdb->posts WHERE post_parent = $post_ID AND post_type = 'attachment'" ); foreach ( $attachments as $attachment ) { wp_delete_attachment( $attachment->ID, true ); } $wpdb->query( "DELETE FROM $wpdb->postmeta WHERE meta_key = '_thumbnail_id' AND post_id = $post_ID" ); } add_action('before_delete_post', 'delete_post_and_attachments'); // 结束