{"id":2394,"date":"2021-04-04T16:50:50","date_gmt":"2021-04-04T08:50:50","guid":{"rendered":"https:\/\/blog.brain1981.com\/?p=2394"},"modified":"2021-04-12T19:46:08","modified_gmt":"2021-04-12T11:46:08","slug":"wordpress%e6%96%87%e7%ab%a0%e5%ad%97%e6%ae%b5%e6%9f%a5%e8%af%a2meta_query%e5%90%84%e7%a7%8d%e9%ab%98%e7%ba%a7%e7%94%a8%e6%b3%95%e5%88%97%e4%b8%be","status":"publish","type":"post","link":"https:\/\/blog.brain1981.com\/2394.html","title":{"rendered":"WordPress\u6587\u7ae0\u5b57\u6bb5\u67e5\u8be2meta_query\u5404\u79cd\u9ad8\u7ea7\u7528\u6cd5\u5217\u4e3e"},"content":{"rendered":"

\"WordPress<\/p>\n

WordPress\u5728get_posts\u6216WP_Query\u65b9\u6cd5\u4e2d\uff0c\u6d3b\u7528meta_query\uff0c\u53ef\u4ee5\u53d8\u6362\u51fa\u65e0\u6570\u79cd\u9ad8\u7ea7\u68c0\u7d22\uff0c\u662fWordPress\u7684\u5165\u95e8\u6280\u80fd\u3002<\/p>\n

\u6700\u7b80\u5355\u7684\u7528\u6cd5\uff0c\u67e5\u8be2\u81ea\u5b9a\u4e49\u5b57\u6bb5\u201cpost_color\u201d\u503c\u4e3a\u201cred\u201d\u7684\u6587\u7ae0<\/p>\n

\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_key' => 'post_color',\r\n\t'meta_value' => 'red'\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u5f15\u5165meta_compare\u53c2\u6570\uff0c\u67e5\u8be2\u81ea\u5b9a\u4e49\u5b57\u6bb5\u201cpost_color\u201d\u503c\u4e0d\u4e3a\u201cred\u201d\u7684\u6587\u7ae0<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_key' => 'post_color',\r\n\t'meta_value' => 'red',\r\n\t'meta_compare' => '!='\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u63a8\u8350\u5199\u6cd5<\/h2>\n
\u4e0b\u9762\u5f00\u59cb\u8fdb\u9636\u7528\u6cd5\uff0c\u9996\u5148\u8981\u6362\u4e00\u79cd\u5199\u6cd5\uff0c\u628a\u6240\u6709\u81ea\u5b9a\u4e49\u5b57\u6bb5\u76f8\u5173\u7684\u53c2\u6570\u90fd\u6253\u5305\u5230meta_query\u53c2\u6570\u4e2d\uff0c\u6548\u679c\u548c\u4e0a\u9762\u4e00\u6bb5\u4e00\u6837:<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'post_color',\r\n\t\t'value' => 'red',\r\n\t\t'compare' => '!='\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
<\/p>\n
\u5982\u679c\u8981\u67e5\u8be2\u5305\u542b\u591a\u4e2a\u4e0d\u540c\u503c\u7684post_color\uff0c\u53ef\u4ee5\u628ameta_value\u5199\u6210\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u503c\u7684\u6570\u7ec4\uff0cmeta_compare\u6539\u6210 IN<\/strong><\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'post_color',\r\n\t\t'value' => array('red','green','yellow)',\r\n\t\t'compare' => 'IN'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u53cd\u4e4b\uff0ccompare\u662f NOT IN<\/strong><\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'post_color',\r\n\t\t'value' => array('red','green','yellow)',\r\n\t\t'compare' => 'NOT IN'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u201ccompare\u201d\u53c2\u6570\u5bf9\u4e8e\u6570\u503c\u7c7b\u578b\u7684\u5b57\u6bb5\uff0c\u8fd8\u80fd\u6709\u66f4\u591a\u7528\u6cd5\uff0c\u6bd4\u5982 >=<\/strong> \uff0c >=<\/strong> \uff0c <<\/strong> \uff0c ><\/strong> \uff0c =<\/strong> \uff0c !=<\/strong>
\n\u540c\u65f6\u4e3a\u4e86\u6307\u5b9a\u6570\u503c\u7c7b\u578b\u7684\u503c\uff0c\u9700\u8981\u52a0\u4e2a\u53c2\u6570type\u4e3anumeric<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'post_index',\r\n\t\t'value' => 88,\r\n\t\t'type' => 'numeric',\r\n\t\t'compare' => '<='\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u5982\u679c\u662f\u67e5\u8be2\u533a\u95f4\u503c\uff0ccompare\u5199\u6210\u201cBETWEEN<\/strong>\u201d<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'post_index',\r\n\t\t'value' => array(10, 20),\r\n\t\t'type' => 'numeric',\r\n\t\t'compare' => 'BETWEEN'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u53cd\u4e4b\u4e5f\u53ef\u4ee5\u7528 \u201cNOT BETWEEN<\/strong>\u201d<\/p>\n
\u201cBETWEEN<\/strong>\u201d\u8fd8\u80fd\u7528\u4e8e\u6bd4\u8f83\u65e5\u671f\u6216\u65f6\u95f4\uff0c\u53ea\u8981\u5199\u6210\u4e00\u6837\u7684\u683c\u5f0f\u5c31\u53ef\u4ee5<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'start_day',\r\n\t\t'value' => array('2018-01-01', '2020-01-01'), \r\n\t\t\/\/'value' => array('2018-01-01 23:00:00', '2020-01-01 23:05:00'),  \u8fd9\u6837\u4e5f\u53ef\u4ee5\r\n\t\t'compare' => 'BETWEEN'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u4e5f\u53ef\u4ee5\u6bd4\u8f83\u65f6\u95f4\u6233\uff0c\u65f6\u95f4\u6233\u662f\u6570\u5b57\uff0c\u6240\u4ee5\u8fd8\u662f\u8981\u7528\u56denumeric\u7c7b\u578b\uff1a<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'start_day',\r\n\t\t'value' => array( strtotime('2018-01-01'), strtotime('2020-01-01')),\r\n\t\t'type' => 'numeric',\r\n\t\t'compare' => 'BETWEEN'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u6ce8\u610f\uff1a\u4f7f\u7528BETWEEN\u505a\u8fd0\u7b97\u7b26\uff0c\u5bf9\u6570\u636e\u5e93\u4f1a\u9020\u6210\u8f83\u5927\u7684\u538b\u529b\u3002<\/strong>\u8bf4\u4e00\u4e2a\u53ef\u4ee5\u60f3\u8c61\u7684\u4f7f\u7528\u573a\u666f\uff0c\u5047\u8bbe\u9875\u9762\u4e0a\u6709\u4e00\u4e2a\u7b5b\u9009\u5668\uff0c\u5176\u4e2d\u6709\u4e24\u4e2a\u6570\u5b57\u5b57\u6bb5\uff0c\u5141\u8bb8\u7528\u6237\u8f93\u51652\u4e2a\u6570\u5b57\u4f5c\u4e3a\u4e0b\u9650\u548c\u4e0a\u9650\uff0c\u6765\u67e5\u8be2\u5b57\u6bb5\u503c\u5728\u8fd9\u4e24\u4e2a\u6570\u5b57\u4e4b\u95f4\u7684\u6587\u7ae0\u3002\u4f46\u5b9e\u9645\u8fd9\u7c7b\u5e94\u7528\u5f88\u5c11\u51fa\u73b0\u5728\u4e1a\u52a1\u91cf\u5de8\u5927\u7684\u7f51\u7ad9\u4e0a\uff0c\u56e0\u4e3a\u8fd9\u6837\u7684\u67e5\u8be2\u5bf9\u6570\u636e\u5e93\u538b\u529b\u6bd4\u8f83\u5927\uff0c\u5f88\u5bb9\u6613\u8ba9\u670d\u52a1\u5668\u5b95\u673a\u3002\u66f4\u5e38\u89c1\u7684\u505a\u6cd5\u662f\uff0c\u4e0a\u9650\u548c\u4e0b\u9650\u4e0d\u4f5c\u4e3a\u8ba9\u7528\u6237\u81ea\u7531\u8f93\u5165\u7684\u6570\u5b57\u6846\uff0c\u800c\u662f\u6539\u6210select\u9009\u62e9\u6846\uff0c\u7ed9\u51fa\u51e0\u4e2a\u9009\u9879\uff0c\u4f8b\u59820-100\u3001100-1000\u30011000-5000\u7b49\u3002\u5b9e\u9645\u67e5\u8be2\u7684\u5b57\u6bb5\u4e5f\u90fd\u662f\u6587\u672c\u7c7b\u578b\u7684\u533a\u95f4\uff0c\u8fd9\u6837\u5c06\u5927\u5927\u51cf\u8f7b\u67e5\u8be2\u538b\u529b\u3002<\/p>\n
\u5bf9\u4e8e\u5b57\u7b26\u578b\u5b57\u6bb5\uff0c\u8fd8\u80fd\u505a\u7c7b\u4f3c\u641c\u7d22\u7684\u67e5\u8be2\uff0ccompare\u503c\u4e3a LIKE<\/strong><\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'first_name',\r\n\t\t'value' => 'Brain',\r\n\t\t'compare' => 'LIKE'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u53cd\u4e4b\u4e5f\u53ef\u4ee5\u7528 NOT LIKE<\/strong><\/p>\n
\u5982\u679c\u4ec5\u4ec5\u8981\u67e5\u8be2\u4e00\u4e2a\u5b57\u6bb5\u662f\u5426\u5b58\u5728\uff0c\u5c31\u7528 EXISTS<\/strong><\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'first_name',\r\n\t\t'compare' => 'EXISTS'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u53cd\u4e4b\u4e5f\u53ef\u4ee5\u7528 NOT EXISTS<\/strong><\/p>\n
\u751a\u81f3\u53ef\u4ee5\u7ed3\u5408\u6b63\u5219\u8868\u8fbe\u5f0f<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'key' => 'first_name',\r\n\t\t'value' => '^[A-Z][a-z]*$', \/\/\u5927\u5199\u5b57\u6bcd\u5f00\u5934\u7684\u540d\u5b57\r\n\t\t'compare' => 'REGEXP'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u53cd\u4e4b\uff0c\u7528 NOT REGEXP<\/strong> \u5339\u914d\u6b63\u5219\u4e0d\u5339\u914d\u7684\u60c5\u51b5<\/p>\n
\u6ee1\u8db3\u591a\u4e2a\u6761\u4ef6\u7684\u67e5\u8be2<\/h2>\n
\u4e0b\u9762\u662f\u591a\u4e2a\u6761\u4ef6\u5339\u914d\uff0c\u5f15\u5165\u65b0\u7684\u53c2\u6570\u201crelation\u201d<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'relation' => 'AND',\r\n\t\tarray(\r\n\t\t\t'key' => 'first_name',\r\n\t\t\t'value' => 'Brain'\r\n\t\t),\r\n\t\tarray(\r\n\t\t\t'key' => 'last_name',\r\n\t\t\t'value' => 'Shi'\r\n\t\t)\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u201crelation\u201d\u662f\u4e2a\u6761\u4ef6\u53c2\u6570\uff0c\u53ef\u4ee5\u662f AND<\/strong> \u6216 OR<\/strong>\uff0c\u5e76\u4e14\u53ef\u4ee5\u5d4c\u5957\u4f7f\u7528\uff1a<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'relation' => 'OR',\r\n\t\tarray(\r\n\t\t\t'key' => 'post_color',\r\n\t\t\t'value' => array('red','green','yellow)',\r\n\t\t\t'compare' => 'IN'\r\n\t\t),\r\n\t\tarray(\r\n\t\t\t'relation' => 'AND',\r\n\t\t\tarray(\r\n\t\t\t\t'key' => 'first_name',\r\n\t\t\t\t'value' => 'Brain'\r\n\t\t\t),\r\n\t\t\tarray(\r\n\t\t\t\t'key' => 'last_name',\r\n\t\t\t\t'value' => 'Shi'\r\n\t\t\t)\r\n\t\t)\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u5173\u4e8e\u6392\u5e8f<\/h2>\n
\u7b80\u5355\u6839\u636e\u81ea\u5b9a\u4e49\u5b57\u6bb5\u503c\u6392\u5e8f\uff1a<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_key' => 'post_color',\r\n\t'orderby' => 'meta_value'\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u5982\u679c\u5b57\u6bb5\u503c\u662f\u6570\u5b57\uff0c\u5219\u53d8\u6210\u8fd9\u6837<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_key' => 'post_index',\r\n\t'orderby' => 'meta_value_num',\r\n\t'order'=> 'DESC'\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u7ed3\u5408meta_query\u53c2\u6570\u7684\u5199\u6cd5\uff1a<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'meta_age' => array(\r\n\t\t\t'key' => 'age',\r\n\t\t\t'value' => array(20,40),\r\n\t\t\t'compare' => 'BETWEEN'\r\n\t\t)\r\n\t),\r\n\t'orderby' => 'meta_age',\r\n\t'order'=> 'ASC'\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u591a\u4e2a\u6761\u4ef6\u590d\u5408\u6392\u5e8f\uff1a<\/p>\n
\r\n$arr = array(\r\n\t'post_type', => 'post',\r\n\t'meta_query'=> array(\r\n\t\t'relation' => 'AND',\r\n\t\t'meta_age' => array(\r\n\t\t\t'key' => 'age',\r\n\t\t\t'value' => array(20,40),\r\n\t\t\t'compare' => 'BETWEEN'\r\n\t\t),\r\n\t\t'meta_date' => array(\r\n\t\t\t'key' => 'start_date',\r\n\t\t\t'value' => array('2020-05-01','2021-05-01'),\r\n\t\t\t'compare' => 'BETWEEN'\r\n\t\t)\r\n\t),\r\n\t'orderby' => array(\r\n\t\t'meta_age' => 'ASC',\r\n\t\t'meta_date' => 'DESC'\r\n\t)\r\n);\r\n$myPosts = new WP_Query( $arr );\r\n<\/pre>\n
\u4ee5\u4e0a\u8303\u4f8b\u662f\u6700\u4f18\u5148\u6309meta_age\u6b63\u5e8f\uff0c\u6b21\u4f18\u5148\u6309meta_date\u964d\u5e8f\u6392\u5e8f\u3002<\/p>\n
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