{"id":200589,"date":"2025-05-06T12:48:33","date_gmt":"2025-05-06T04:48:33","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200589\/"},"modified":"2025-05-06T12:48:33","modified_gmt":"2025-05-06T04:48:33","slug":"%e5%a6%82%e4%bd%95%e6%9f%a5%e8%af%a2%e5%8c%85%e5%90%ab-in-%e9%9b%86%e5%90%88%e5%ad%97%e6%ae%b5%e7%9a%84%e6%95%b0%e6%8d%ae%e5%ba%93%e8%a1%a8%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200589\/","title":{"rendered":"\u5982\u4f55\u67e5\u8be2\u5305\u542b IN \u96c6\u5408\u5b57\u6bb5\u7684\u6570\u636e\u5e93\u8868\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u67e5\u8be2\u5305\u542b IN \u96c6\u5408\u5b57\u6bb5\u7684\u6570\u636e\u5e93\u8868\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u6211\u4eec\u53c8\u89c1\u9762\u4e86\u554a~\u672c\u6587\u7684\u5185\u5bb9\u4e2d\u5c06\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u3002\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u76f8\u5173\u77e5\u8bc6\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\uff0c\u4ee5\u540e\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u66f4\u591a\u76f8\u5173\u6587\u7ae0\uff0c\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u8fdb\u6b65\uff01\u4e0b\u9762\u5c31\u5f00\u59cb\u672c\u6587\u7684\u6b63\u5f0f\u5185\u5bb9~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241109\/1731120525672ecd8dc4740.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u67e5\u8be2 in \u96c6\u5408\u5b57\u6bb5\u7684\u6700\u4f73\u505a\u6cd5<\/strong><\/p>\n<p>\u5f53\u6570\u636e\u5e93\u8868\u5305\u542b\u4e00\u4e2a in \u96c6\u5408\u5b57\u6bb5\uff08\u5982 user_id\uff09\uff0c\u5e76\u4e14\u9700\u8981\u6839\u636e\u8be5\u5b57\u6bb5\u4e2d\u7684\u7279\u5b9a\u503c\u67e5\u8be2\u6570\u636e\u65f6\uff0c\u9700\u8981\u91c7\u7528\u7279\u5b9a\u65b9\u6cd5\u3002<\/p>\n<p>\u8003\u8651\u4e0b\u6587\u4e2d\u7ed9\u51fa\u7684\u67e5\u8be2\uff1a<\/p>\n<pre>select * from project where $this-&amp;gt;auth-&amp;gt;id in user_id......<\/pre>\n<p>\u8fd9\u4e2a\u67e5\u8be2\u7684\u76ee\u7684\u662f\u627e\u51fa\u5f53\u524d\u767b\u5f55\u7528\u6237\u53c2\u52a0\u7684\u9879\u76ee\u5217\u8868\u3002\u7136\u800c\uff0c\u7531\u4e8e\u67e5\u8be2\u4e2d\u7684\u8bed\u6cd5\u9519\u8bef\uff0c\u5b83\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u5982\u679c\u65e0\u6cd5\u4fee\u6539\u8868\u7ed3\u6784\uff0c\u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<ul>\n<li><strong>find_in_set\uff1a<\/strong>\u6b64\u51fd\u6570\u7528\u4e8e\u68c0\u67e5\u4e00\u4e2a\u503c\u662f\u5426\u5728\u7531\u9017\u53f7\u5206\u9694\u7684\u5b57\u7b26\u4e32\uff08user_id \u5b57\u6bb5\uff09\u4e2d\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8be2\u5c06\u627e\u5230 user_id \u4e3a 21 \u7684\u9879\u76ee\uff1a<\/li>\n<\/ul>\n<pre>find_in_set(21,user_id)<\/pre>\n<ul>\n<li><strong>like\uff1a<\/strong>\u6b64\u8fd0\u7b97\u7b26\u7528\u4e8e\u6a21\u7cca\u5339\u914d\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8be2\u5c06\u627e\u5230\u5305\u542b user_id \u4e3a 21 \u7684\u6240\u6709\u9879\u76ee\uff1a<\/li>\n<\/ul>\n<pre>user_id like '21,%' or user_id like '%,21' or user_id like '%,21,%' or user_id=21<\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528 find_in_set \u6216 like\uff0c\u53ef\u4ee5\u67e5\u8be2 in \u96c6\u5408\u5b57\u6bb5\uff0c\u5e76\u6839\u636e\u7279\u5b9a\u503c\u8fd4\u56de\u76f8\u5173\u6570\u636e\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u5982\u4f55\u67e5\u8be2\u5305\u542b IN \u96c6\u5408\u5b57\u6bb5\u7684\u6570\u636e\u5e93\u8868\uff1f\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6570\u636e\u5e93\u77e5\u8bc6\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u67e5\u8be2\u5305\u542b IN \u96c6\u5408\u5b57\u6bb5\u7684\u6570&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200589","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200589","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200589"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200589\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}