{"id":1027,"date":"2024-06-05T20:33:13","date_gmt":"2024-06-05T12:33:13","guid":{"rendered":"https:\/\/cn.raksmart.com\/blog\/host\/4138.html"},"modified":"2024-06-05T20:33:13","modified_gmt":"2024-06-05T12:33:13","slug":"%e8%ae%a9wordpress%e5%90%8e%e5%8f%b0%e6%90%9c%e7%b4%a2%e6%94%af%e6%8c%81%e8%87%aa%e5%ae%9a%e4%b9%89%e5%9f%9fpost-meta-2","status":"publish","type":"post","link":"https:\/\/cn.raksmart.com\/blog\/website\/wordpress\/1027.html","title":{"rendered":"\u8ba9WordPress\u540e\u53f0\u641c\u7d22\u652f\u6301\u81ea\u5b9a\u4e49\u57dfpost meta"},"content":{"rendered":"<div class=\"entry-content e-content\" itemprop=\"description articleBody\">\n<p><strong>WordPress<\/strong>\u7ba1\u7406\u5458\u540e\u53f0\u7684\u641c\u7d22\u529f\u80fd\u672c\u8eab\u53ea\u80fd\u5bf9\u6587\u7ae0\u6807\u9898\u548c\u5185\u5bb9\u8fdb\u884c\u67e5\u8be2\u641c\u7d22\uff0c\u4f46\u5f53\u6211\u4eec\u6709\u6bd4\u8f83\u91cd\u8981\u7684\u81ea\u5b9a\u4e49\u57dfpost meta\u65f6\uff0c\u5c31\u9700\u8981\u652f\u6301\u641c\u7d22\u5305\u542b\u81ea\u5b9a\u4e49\u57df\u7684\u6587\u7ae0\u3002\u4e3a\u4e86\u5b9e\u73b0\u540e\u53f0\u652f\u6301\u5bf9post meta\u81ea\u5b9a\u4e49\u57df\u7684\u641c\u7d22\u6211\u4eec\u9700\u8981\u7528\u5230WordPress\u7684\u4e09\u4e2aadd_filter\u51fd\u6570posts_join\u3001posts_where\u548cposts_groupby\u5373\u53ef\u5b9e\u73b0\u8be5\u529f\u80fd\u3002\u672c\u6587<strong><a href=\"https:\/\/www.raksmart.com\/cps\/7821\" target=\"_blank\" rel=\"noopener\">raksmart<\/a><a href=\"https:\/\/cn.raksmart.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"\u7f8e\u56fd\u670d\u52a1\u5668\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\">\u7f8e\u56fd\u670d\u52a1\u5668<\/a><\/strong>\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u5177\u4f53\u4ee3\u7801\uff1a<\/p>\n<p>\/*<\/p>\n<p>\u6dfb\u52a0\u540e\u53f0\u641c\u7d22\u652f\u6301post meta\u81ea\u5b9a\u4e49\u57df\u67e5\u8be2<\/p>\n<p>\u4ee3\u7801\u6765\u6e90: www.wpzhinan.com\/jiaocheng\/1794.html<\/p>\n<p>*\/<\/p>\n<p>add_filter( \u2018posts_join\u2019, \u2018posts_join_func\u2019 );<\/p>\n<p>add_filter( \u2018posts_where\u2019, \u2018posts_where_func\u2019 );<\/p>\n<p>add_filter( \u2018posts_groupby\u2019, \u2018posts_groupby_func\u2019 );<\/p>\n<p>\/**<\/p>\n<p>\u00a0* \u4e3a\u641c\u7d22\u52a0\u5165post meta\u6570\u636e<\/p>\n<p>\u00a0*\/<\/p>\n<p>function posts_join_func( $join ) {<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 global $wpdb;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if ( ! is_applicable() )<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return $join;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 $join .= \u201cLEFT JOIN<br \/>\n$wpdb-&gt;postmeta ON $wpdb-&gt;posts.ID = $wpdb-&gt;postmeta.post_id \u201c;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return $join;<\/p>\n<p>}<\/p>\n<p>\/**<\/p>\n<p>\u00a0* \u786e\u4fdd\u83b7\u53d6\u6307\u5b9a\u7684\u641c\u7d22\u7ed3\u679c     \u66f4\u591a\u5185\u5bb9\u8bf7\u9605\u8bfb\uff1a <a href=\"https:\/\/cn.raksmart.com\/blog\/website\/wordpress\/775.html\">\u4ec0\u4e48\u662fWORDPRESS\u63d2\u4ef6, \u5982\u4f55\u5b89\u88c5?<\/a><\/p>\n<p>\u00a0*\/<\/p>\n<p>function posts_where_func( $where ) {<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 global $wpdb, $wp;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if ( ! is_applicable() )<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return $where;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 $where = preg_replace(<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u201c\/($wpdb-&gt;posts.post_title<br \/>\nLIKE \u2018%{$wp-&gt;query_vars[\u2018s\u2019]}%\u2019)\/i\u201d,<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u201c$0 OR<br \/>\n$wpdb-&gt;postmeta.meta_value LIKE \u2018%{$wp-&gt;query_vars[\u2018s\u2019]}%\u2019 \u201c,<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 $where<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 );<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return $where;<\/p>\n<p>}<\/p>\n<p>\/**<\/p>\n<p>\u00a0* \u6839\u636e\u6587\u7ae0ID\u7ec4\u5408\u7ed3\u679c\uff0c\u5e76\u786e\u4fdd\u4e0d\u83b7\u53d6\u91cd\u590d\u7ed3\u679c<\/p>\n<p>\u00a0*\/<\/p>\n<p>function posts_groupby_func( $groupby ) {<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 global $wpdb;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if ( ! is_applicable() )<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return $groupby;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if ( empty( $groupby ) )<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 $groupby =<br \/>\n\u201c$wpdb-&gt;posts.ID\u201d;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return $groupby;<\/p>\n<p>}<\/p>\n<p>\/**<\/p>\n<p>\u00a0* \u786e\u4fdd\u5728\u6b63\u786e\u7684\u9875\u9762<\/p>\n<p>\u00a0*\/<\/p>\n<p>function is_applicable() {<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 global $pagenow, $wp_query;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ \u68c0\u67e5\u662f\u5426\u5728\u7ba1\u7406\u5458\u540e\u53f0<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if ( ! is_admin() )<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return false;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ \u68c0\u67e5\u662f\u5426\u5728\u6587\u7ae0\u7f16\u8f91\u9875<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if ( \u2018edit.php\u2019 != $pagenow<br \/>\n)<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return false;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ \u68c0\u67e5\u662f\u5426\u641c\u7d22\u5173\u952e\u8bcd\u5df2\u8bbe\u7f6e<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if ( ! isset( $_GET[\u2018s\u2019] ) )<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return false;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ \u68c0\u67e5\u662f\u5426\u5728\u641c\u7d22\u9875\u9762<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if ( !<br \/>\n$wp_query-&gt;is_search )<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return false;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return true;<\/p>\n<p>}  \u63a8\u8350\u9605\u8bfb\uff1a<a href=\"https:\/\/cn.raksmart.com\/blog\/website\/wordpress\/770.html\">WORDPRESS5.3\u66f4\u65b0\u4e86\u54ea\u4e9b\u5185\u5bb9\uff081\uff09<\/a><\/p>\n<p>\u4ee3\u7801\u8bf4\u660e\uff1a\u5c06\u4ee5\u4e0a\u4ee3\u7801\u63d2\u5165\u4e3b\u9898\u7684function.php\u6587\u4ef6\u5373\u53ef\u5b9e\u73b0\u81ea\u5b9a\u4e49\u57dfpost meta\u7684\u641c\u7d22\u4e86\u3002\u4e4b\u540e\u4f60\u53ef\u4ee5\u5c1d\u8bd5\u4ee5\u81ea\u5b9a\u4e49\u57df\u5185\u5bb9\u6765\u641c\u7d22\u770b\u770b\u662f\u5426\u80fd\u6b63\u786e\u5730\u67e5\u8be2\u5230\u7ed3\u679c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>WordPress\u7ba1\u7406\u5458\u540e\u53f0\u7684\u641c\u7d22\u529f\u80fd\u672c\u8eab\u53ea\u80fd\u5bf9\u6587\u7ae0\u6807\u9898\u548c\u5185\u5bb9\u8fdb\u884c\u67e5\u8be2\u641c\u7d22\uff0c\u4f46\u5f53\u6211\u4eec\u6709\u6bd4\u8f83\u91cd\u8981\u7684\u81ea\u5b9a\u2026 <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[986],"class_list":["post-1027","post","type-post","status-publish","format-standard","hentry","category-wordpress","tag-wordpress"],"_links":{"self":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts\/1027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/comments?post=1027"}],"version-history":[{"count":0,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts\/1027\/revisions"}],"wp:attachment":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/media?parent=1027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/categories?post=1027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/tags?post=1027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}