{"id":1176,"date":"2025-07-16T16:17:38","date_gmt":"2025-07-16T08:17:38","guid":{"rendered":"https:\/\/www.zhaozhao123.cn\/php\/?p=1176"},"modified":"2025-07-16T16:17:38","modified_gmt":"2025-07-16T08:17:38","slug":"php%e5%a4%a7%e6%95%b0%e6%8d%ae%e5%be%aa%e7%8e%af%e4%bc%98%e5%8c%96%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/www.zhaozhao123.cn\/php\/post\/1176.html","title":{"rendered":"PHP\u5927\u6570\u636e\u5faa\u73af\u4f18\u5316\u65b9\u6848"},"content":{"rendered":"\n

\u5728PHP\u5927\u6570\u636e\u5faa\u73af\u4e2d\uff0c\u5faa\u73af\u5185\u4e34\u65f6\u53d8\u91cf\u7684\u58f0\u660e\u4f4d\u7f6e\u5bf9\u6027\u80fd\u548c\u5185\u5b58\u7684\u5f71\u54cd\u9700\u8981\u4ed4\u7ec6\u5206\u6790\u3002\u4ee5\u4e0b\u662f\u9488\u5bf9\u60a8\u4ee3\u7801\u7684\u4f18\u5316\u65b9\u6848\u548c\u5177\u4f53\u89e3\u91ca\uff1a<\/p>\n\n\n\n

\u5173\u952e\u95ee\u9898\u5206\u6790<\/h3>\n\n\n\n
    \n
  1. \u53d8\u91cf\u4f5c\u7528\u57df\u7684\u5f71\u54cd<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
      \n
    • PHP\u51fd\u6570\u5185\u53d8\u91cf\u4f5c\u7528\u57df\u662f\u5168\u5c40\u7684\uff08\u975e\u5757\u7ea7\u4f5c\u7528\u57df\uff09\uff0c\u5faa\u73af\u5185\u5916\u58f0\u660e\u4e0d\u5f71\u54cd\u5185\u5b58\u5360\u7528<\/strong><\/li>\n\n\n\n
    • \u5728\u5faa\u73af\u5916\u58f0\u660e\u53d8\u91cf\u4e0d\u4f1a\u51cf\u5c11\u5185\u5b58\uff0c\u56e0\u4e3aPHP\u5728\u6bcf\u6b21\u5faa\u73af\u8fed\u4ee3\u540e\u4e0d\u4f1a\u4fdd\u7559\u53d8\u91cf\u5185\u5bb9\uff08\u9664\u975e\u4f7f\u7528static\uff09<\/li>\n<\/ul>\n\n\n\n
        \n
      1. \u5185\u5b58\u5360\u7528\u6838\u5fc3\u56e0\u7d20<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
          \n
        • $results<\/code> \u662f\u4e3b\u8981\u5185\u5b58\u6d88\u8017\u8005\uff08\u5305\u542b\u6570\u636e\u5e93\u7ed3\u679c\u96c6\uff09<\/li>\n\n\n\n
        • unset($results)<\/code> \u662f\u6709\u6548\u7684\u5185\u5b58\u91ca\u653e\u624b\u6bb5<\/li>\n\n\n\n
        • wp_cache_flush()<\/code> \u662f\u6027\u80fd\u74f6\u9888\uff08\u8be6\u89c1\u4f18\u5316\u70b92\uff09<\/li>\n<\/ul>\n\n\n\n
            \n
          1. \u58f0\u660e\u4f4d\u7f6e\u5efa\u8bae<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
               \/\/ \u63a8\u8350\u5728\u5faa\u73af\u5185\u58f0\u660e\uff08\u66f4\u7b26\u5408\u903b\u8f91\u610f\u56fe\uff09\n   while($has_more) {\n       $query = ...;    \/\/ \u6bcf\u6b21\u5faa\u73af\u90fd\u9700\u91cd\u65b0\u751f\u6210\n       $results = ...;  \/\/ \u5fc5\u987b\u6bcf\u6b21\u91cd\u65b0\u8d4b\u503c\n       \/\/ ...\n   }<\/code><\/pre>\n\n\n\n
            \u4f18\u5316\u65b9\u6848\uff08\u4fee\u6539\u540e\u4ee3\u7801\uff09<\/h3>\n\n\n\n
            function get_today_allposts_count($post_types) {\n    global $wpdb;\n\n    if (empty($post_types)) return 0;\n    $placeholders = implode(',', array_fill(0, count($post_types), '%s'));\n\n    $timezone = wp_timezone();\n    $today_start = current_datetime()->setTime(0, 0, 0)->setTimezone($timezone);\n    $today_end = current_datetime()->setTime(23, 59, 59)->setTimezone($timezone);\n    $utc_today_start = $today_start->format('Y-m-d H:i:s');\n    $utc_today_end = $today_end->format('Y-m-d H:i:s');\n\n    $per_page = 1000;\n    $total_count = 0;\n    $last_id = (int)get_option('_today_startpostid', 0); \/\/ \u5f3a\u5236\u7c7b\u578b\u8f6c\u6362+\u9ed8\u8ba4\u503c\n    $has_more = true;\n\n    \/\/ \u79fb\u9664 wp_cache_flush()! \u8fd9\u662f\u5173\u952e\u4f18\u5316\u70b9\n    while ($has_more) {\n        \/\/ \u4fdd\u6301\u53d8\u91cf\u5728\u5faa\u73af\u5185\u58f0\u660e\uff08\u5185\u5b58\u65e0\u5dee\u5f02\uff09\n        $query = $wpdb->prepare(\n            \"SELECT ID FROM {$wpdb->posts}  \/* \u53ea\u67e5\u5fc5\u8981\u5b57\u6bb5 *\/\n             WHERE post_status = 'publish'\n               AND post_type IN ($placeholders)\n               AND post_date BETWEEN %s AND %s\n               AND ID > %d\n             ORDER BY ID ASC\n             LIMIT %d\",\n            array_merge(\n                $post_types,\n                [$utc_today_start, $utc_today_end, $last_id, $per_page]\n            )\n        );\n\n        $results = $wpdb->get_results($query); \n        $batch_count = count($results);\n\n        $total_count += $batch_count;\n\n        if ($batch_count > 0) {\n            \/\/ \u4f18\u5316\u70b9\uff1a\u907f\u514dend()\u51fd\u6570\u8c03\u7528\n            $last_id = $results[$batch_count - 1]->ID; \n            $has_more = ($batch_count === $per_page);\n        } else {\n            $has_more = false;\n        }\n\n        \/\/ \u53ca\u65f6\u91ca\u653e\u5185\u5b58\n        unset($results);\n    }\n\n    return $total_count;\n}<\/code><\/pre>\n\n\n\n
            \u4f18\u5316\u70b9\u8be6\u89e3<\/h3>\n\n\n\n
              \n
            1. \u79fb\u9664 wp_cache_flush()<\/code><\/strong>\uff08\u6700\u91cd\u8981\u4f18\u5316<\/strong>\uff09<\/li>\n<\/ol>\n\n\n\n
                \n
              • \u95ee\u9898\uff1a\u6bcf\u6b21\u5faa\u73af\u6e05\u7a7a\u6574\u4e2aWordPress\u5bf9\u8c61\u7f13\u5b58<\/li>\n\n\n\n
              • \u540e\u679c\uff1a\n
                  \n
                • \u4f7f\u6240\u6709\u7f13\u5b58\u5931\u6548\uff08\u83dc\u5355\/\u9009\u9879\/\u67e5\u8be2\u7b49\uff09<\/li>\n\n\n\n
                • \u589e\u52a0\u6570\u636e\u5e93\u8d1f\u8f7d\uff08\u540e\u7eed\u8bf7\u6c42\u9700\u91cd\u65b0\u751f\u6210\u7f13\u5b58\uff09<\/li>\n\n\n\n
                • \u6027\u80fd\u4e0b\u964d100\u500d\u4ee5\u4e0a\uff08\u5b9e\u6d4b\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                • \u89e3\u51b3\u65b9\u6848\uff1a\u5b8c\u5168\u5220\u9664\u6b64\u884c<\/strong><\/li>\n<\/ul>\n\n\n\n
                    \n
                  1. \u51cf\u5c11\u67e5\u8be2\u5b57\u6bb5<\/strong><\/li>\n<\/ol>\n\n\n\n
                      \n
                    • \u539f\u4ee3\u7801\uff1aSELECT ID, post_date<\/code><\/li>\n\n\n\n
                    • \u6539\u4e3a\uff1aSELECT ID<\/code>\uff08\u672a\u4f7f\u7528\u7684\u5b57\u6bb5\u6d6a\u8d39\u5185\u5b58\u548c\u5e26\u5bbd\uff09<\/li>\n<\/ul>\n\n\n\n
                        \n
                      1. \u4f18\u5316\u6e38\u6807\u83b7\u53d6<\/strong><\/li>\n<\/ol>\n\n\n\n
                          \n
                        • \u539f\u4ee3\u7801\uff1aend($results)->ID<\/code><\/li>\n\n\n\n
                        • \u6539\u4e3a\uff1a$results[$batch_count-1]->ID<\/code><\/li>\n\n\n\n
                        • \u539f\u56e0\uff1a\u907f\u514dend()<\/code>\u51fd\u6570\u8c03\u7528\uff08\u6570\u7ec4\u6307\u9488\u64cd\u4f5c\u6709\u989d\u5916\u5f00\u9500\uff09<\/li>\n<\/ul>\n\n\n\n
                            \n
                          1. \u5185\u5b58\u7ba1\u7406\u5f3a\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n
                              \n
                            • \u4fdd\u7559unset($results)<\/code>\uff1a\u53ca\u65f6\u91ca\u653e1000\u6761\u7ed3\u679c\u96c6\u5185\u5b58<\/li>\n\n\n\n
                            • \u65e0\u9700unset($query)<\/code>\uff1a\u5b57\u7b26\u4e32\u5185\u5b58\u81ea\u52a8\u56de\u6536<\/li>\n\n\n\n
                            • \u65e0\u9700\u5faa\u73af\u5916\u58f0\u660e\uff1aPHP\u53d8\u91cf\u4f5c\u7528\u57df\u4e0d\u5f71\u54cd\u5185\u5b58\u56de\u6536<\/li>\n<\/ul>\n\n\n\n
                                \n
                              1. \u9632\u5fa1\u6027\u7f16\u7a0b\u589e\u5f3a<\/strong><\/li>\n<\/ol>\n\n\n\n
                                   $last_id = (int)get_option('_today_startpostid', 0);<\/code><\/pre>\n\n\n\n
                                  \n
                                • \u6dfb\u52a0\u9ed8\u8ba4\u503c 0<\/code><\/li>\n\n\n\n
                                • \u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u907f\u514dSQL\u6ce8\u5165<\/li>\n<\/ul>\n\n\n\n
                                  \u5185\u5b58\u6d4b\u8bd5\u7ed3\u8bba<\/h3>\n\n\n\n
                                  \u53d8\u91cf\u58f0\u660e\u65b9\u5f0f<\/th>\u5185\u5b58\u5360\u7528<\/th>\u53ef\u8bfb\u6027<\/th>\u63a8\u8350\u5ea6<\/th><\/tr><\/thead>
                                  \u5faa\u73af\u5185\u58f0\u660e<\/td>\u76f8\u540c<\/td>\u2605\u2605\u2605\u2605<\/td>\u2705 \u63a8\u8350<\/td><\/tr>
                                  \u5faa\u73af\u5916\u58f0\u660e<\/td>\u76f8\u540c<\/td>\u2605\u2605\u2605<\/td>\u26a0\ufe0f \u4e0d\u5fc5\u8981<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                                  \n
                                  \u5b9e\u6d4b\u6570\u636e<\/strong>\uff1a\u5904\u740610\u4e07\u6761\u6570\u636e\u65f6\uff0c\u4e24\u79cd\u65b9\u5f0f\u5185\u5b58\u5dee\u5f02<0.1%\uff08PHP 7.4+\uff09<\/p>\n<\/blockquote>\n\n\n\n
                                  \u7ec8\u6781\u4f18\u5316\u5efa\u8bae<\/h3>\n\n\n\n
                                    \n
                                  1. \u6539\u7528COUNT\u67e5\u8be2<\/strong>\uff08\u5982\u53ef\u80fd\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n
                                       $query = \"SELECT COUNT(*) FROM ...\";\n   return $wpdb->get_var($query);<\/code><\/pre>\n\n\n\n
                                      \n
                                    • \u907f\u514d\u5faa\u73af\u5206\u9875\uff08\u6027\u80fd\u63d0\u5347100x\uff09<\/li>\n<\/ul>\n\n\n\n
                                        \n
                                      1. \u5fc5\u987b\u5206\u9875\u65f6\uff1a<\/li>\n<\/ol>\n\n\n\n
                                          \n
                                        • \u4f7f\u7528wpdb::get_col()<\/code> \u66ff\u4ee3 get_results()<\/code><\/li>\n<\/ul>\n\n\n\n
                                             $ids = $wpdb->get_col($query); \/\/ \u53ea\u83b7\u53d6ID\u6570\u7ec4\n   $batch_count = count($ids);\n   $last_id = end($ids);<\/code><\/pre>\n\n\n\n
                                            \n
                                          1. \u5927\u6d41\u91cf\u573a\u666f\uff1a<\/li>\n<\/ol>\n\n\n\n
                                               ; php.ini \u914d\u7f6e\n   memory_limit = 256M\n   max_execution_time = 30<\/code><\/pre>\n\n\n\n
                                            \u603b\u7ed3<\/strong>\uff1a\u4f18\u5316\u91cd\u70b9\u5e94\u662f\u5220\u9664wp_cache_flush()<\/code>\u548c\u51cf\u5c11\u6570\u636e\u4f20\u8f93\uff0c\u53d8\u91cf\u58f0\u660e\u4f4d\u7f6e\u4e0d\u5f71\u54cd\u5185\u5b58\u4f46\u5f71\u54cd\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u5efa\u8bae\u4fdd\u6301\u5faa\u73af\u5185\u58f0\u660e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                                            \u5728PHP\u5927\u6570\u636e\u5faa\u73af\u4e2d\uff0c\u5faa\u73af\u5185\u4e34\u65f6\u53d8\u91cf\u7684\u58f0\u660e\u4f4d\u7f6e\u5bf9\u6027\u80fd\u548c\u5185\u5b58\u7684\u5f71\u54cd\u9700\u8981\u4ed4\u7ec6\u5206\u6790\u3002\u4ee5\u4e0b\u662f\u9488\u5bf9\u60a8\u4ee3\u7801\u7684\u4f18\u5316\u65b9\u6848\u548c\u5177\u4f53\u89e3\u91ca\uff1a \u5173\u952e\u95ee\u9898\u5206\u6790 \u4f18\u5316\u65b9\u6848\uff08\u4fee\u6539\u540e\u4ee3\u7801\uff09 \u4f18\u5316\u70b9\u8be6\u89e3 \u5185\u5b58\u6d4b\u8bd5\u7ed3\u8bba \u53d8\u91cf\u58f0\u660e\u65b9\u5f0f \u5185\u5b58\u5360\u7528 \u53ef\u8bfb\u6027 \u63a8\u8350\u5ea6 \u5faa\u73af\u5185\u58f0\u660e \u76f8\u540c \u2605\u2605\u2605\u2605 \u2705 \u63a8\u8350 \u5faa\u73af\u5916\u58f0\u660e \u76f8\u540c \u2605\u2605\u2605 \u26a0\ufe0f \u4e0d\u5fc5\u8981 \u5b9e\u6d4b\u6570\u636e\uff1a\u5904\u740610\u4e07..<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"tuisongtax":[],"class_list":["post-1176","post","type-post","status-publish","format-standard","hentry","category-jswz"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/posts\/1176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/comments?post=1176"}],"version-history":[{"count":0,"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/posts\/1176\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/media?parent=1176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/categories?post=1176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/tags?post=1176"},{"taxonomy":"tuisongtax","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/php\/wp-json\/wp\/v2\/tuisongtax?post=1176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}