{"id":22263,"date":"2024-11-21T13:25:45","date_gmt":"2024-11-21T05:25:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22263\/"},"modified":"2024-11-21T13:25:45","modified_gmt":"2024-11-21T05:25:45","slug":"thinkphp%e6%80%8e%e4%b9%88%e6%9f%a5%e8%af%a2%e5%8e%bb%e9%99%a4%e9%87%8d%e5%a4%8d","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22263\/","title":{"rendered":"thinkphp\u600e\u4e48\u67e5\u8be2\u53bb\u9664\u91cd\u590d"},"content":{"rendered":"

thinkphp \u662f\u4e00\u6b3e\u5e7f\u6cdb\u5e94\u7528\u7684 php \u6846\u67b6\uff0c\u5b83\u63d0\u4f9b\u4e86\u8bb8\u591a\u4fbf\u6377\u7684\u65b9\u6cd5\u548c\u51fd\u6570\uff0c\u53ef\u4ee5\u7b80\u5316\u6211\u4eec\u5bf9\u6570\u636e\u5e93\u7684\u67e5\u8be2\u64cd\u4f5c\u3002\u7136\u800c\uff0c\u6709\u65f6\u5019\u6211\u4eec\u4f1a\u9047\u5230\u9700\u8981\u67e5\u8be2\u53bb\u9664\u91cd\u590d\u6570\u636e\u7684\u9700\u6c42\u3002\u4eca\u5929\u5c31\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u4e86\u89e3\u5982\u4f55\u5728 thinkphp \u4e2d\u53bb\u9664\u91cd\u590d\u6570\u636e\u3002<\/p>\n

\u5728\u5982\u4f55\u53bb\u9664\u91cd\u590d\u6570\u636e\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b thinkphp \u4e2d\u7684\u67e5\u8be2\u65b9\u6cd5\u3002thinkphp \u6846\u67b6\u63d0\u4f9b\u4e86\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u67e5\u8be2\u6784\u5efa\u5668\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u6784\u5efa\u5404\u79cd\u590d\u6742\u7684\u67e5\u8be2\u8bed\u53e5\u3002\u4f7f\u7528\u67e5\u8be2\u6784\u5efa\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u975e\u5e38\u7b80\u5355\u5730\u5b9e\u73b0\u67e5\u8be2\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

$users = Db::name('user')->select();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u5c06\u67e5\u8be2\u6570\u636e\u5e93\u4e2d\u7684 user \u8868\uff0c\u5e76\u8fd4\u56de\u6570\u636e\u3002\u4f46\u662f\uff0c\u5982\u679c\u8be5\u8868\u4e2d\u6709\u91cd\u590d\u6570\u636e\uff0c\u6211\u4eec\u5e0c\u671b\u4ece\u7ed3\u679c\u4e2d\u53bb\u9664\u91cd\u590d\u9879\u8be5\u600e\u4e48\u529e\u5462\uff1f<\/p>\n
thinkphp \u63d0\u4f9b\u4e86\u4e00\u4e2a distinct \u65b9\u6cd5\uff0c\u7528\u4e8e\u53bb\u9664\u67e5\u8be2\u7ed3\u679c\u4e2d\u7684\u91cd\u590d\u9879\u3002\u4f7f\u7528\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u6dfb\u52a0 distinct \u65b9\u6cd5\u5373\u53ef\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
$users = Db::name('user')->distinct(true)->select();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0cdistinct(true) \u65b9\u6cd5\u8868\u793a\u6253\u5f00\u53bb\u91cd\u6807\u8bb0\u3002\u6267\u884c select() \u65b9\u6cd5\u65f6\uff0c\u7ed3\u679c\u96c6\u4e2d\u6240\u6709\u5217\u5747\u5c06\u72ec\u4e00\u65e0\u4e8c\u5730\u663e\u793a\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u9664\u4e86 distinct \u65b9\u6cd5\u4e4b\u5916\uff0cthinkphp \u4e2d\u8fd8\u63d0\u4f9b\u4e86\u53e6\u5916\u4e00\u4e2a\u65b9\u6cd5\u6765\u53bb\u9664\u67e5\u8be2\u7ed3\u679c\u4e2d\u7684\u91cd\u590d\u9879\uff0c\u5373 group \u65b9\u6cd5\u3002\u4f7f\u7528 group \u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u4e00\u4e2a\u5b57\u6bb5\u4f5c\u4e3a\u5206\u7ec4\u4f9d\u636e\uff0c\u4ece\u800c\u53bb\u91cd\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
$users = Db::name('user')\n         ->field('name, age')\n         ->group('name')\n         ->select();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a name \u5b57\u6bb5\u4e3a\u5206\u7ec4\u4f9d\u636e\uff0c\u5bf9 age \u5b57\u6bb5\u8fdb\u884c\u53bb\u91cd\u3002\u8fd9\u79cd\u65b9\u5f0f\u867d\u7136\u53ef\u4ee5\u89e3\u51b3\u53bb\u91cd\u95ee\u9898\uff0c\u4f46\u662f\u5f80\u5f80\u9700\u8981\u6307\u5b9a\u6bd4\u8f83\u591a\u7684\u5b57\u6bb5\uff0c\u4f1a\u589e\u52a0\u4ee3\u7801\u7684\u590d\u6742\u5ea6\u3002<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0c\u53bb\u9664\u67e5\u8be2\u7ed3\u679c\u4e2d\u7684\u91cd\u590d\u9879\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u5728 thinkphp \u4e2d\u4e5f\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u5177\u4f53\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u67e5\u8be2\u573a\u666f\u9009\u62e9\u76f8\u5e94\u7684\u65b9\u6cd5\u3002\u5982\u679c\u60a8\u6709\u66f4\u597d\u7684\u5b9e\u73b0\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5728\u8bc4\u8bba\u533a\u7559\u8a00\uff0c\u5206\u4eab\u7ed9\u5927\u5bb6\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fthinkphp\u600e\u4e48\u67e5\u8be2\u53bb\u9664\u91cd\u590d\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
thinkphp \u662f\u4e00\u6b3e\u5e7f\u6cdb\u5e94\u7528\u7684 php \u6846\u67b6\uff0c\u5b83\u63d0\u4f9b\u4e86\u8bb8\u591a\u4fbf\u6377\u7684\u65b9\u6cd5\u548c\u51fd\u6570\uff0c\u53ef\u4ee5\u7b80\u5316\u6211\u4eec\u5bf9\u6570\u636e\u5e93\u7684\u67e5\u8be2\u64cd\u4f5c\u3002\u7136\u800c\uff0c\u6709\u65f6\u5019\u6211\u4eec\u4f1a\u9047\u5230\u9700\u8981\u67e5\u8be2\u53bb\u9664\u91cd\u590d\u6570\u636e\u7684\u9700\u6c42\u3002\u4eca\u5929\u5c31\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u4e86\u89e3\u5982\u4f55\u5728 thinkphp \u4e2d\u53bb\u9664\u91cd\u590d\u6570\u636e\u3002 \u5728\u5982\u4f55\u53bb\u9664\u91cd\u590d\u6570\u636e\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b thinkphp \u4e2d\u7684\u67e5\u8be2\u65b9\u6cd5\u3002thinkphp \u6846\u67b6\u63d0\u4f9b\u4e86\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u67e5\u8be2\u6784\u5efa\u5668\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u6784\u5efa\u5404\u79cd\u590d\u6742\u7684\u67e5\u8be2\u8bed\u53e5\u3002\u4f7f\u7528\u67e5\u8be2\u6784\u5efa\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u975e\u5e38\u7b80\u5355\u5730\u5b9e\u73b0\u67e5\u8be2\uff0c\u5982\u4e0b\u6240\u793a\uff1a $users = Db::name(‘user’)->select(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u4ee3\u7801\u5c06\u67e5\u8be2\u6570\u636e\u5e93\u4e2d\u7684 user \u8868\uff0c\u5e76\u8fd4\u56de\u6570\u636e\u3002\u4f46\u662f\uff0c\u5982\u679c\u8be5\u8868\u4e2d\u6709\u91cd\u590d\u6570\u636e\uff0c\u6211\u4eec\u5e0c\u671b\u4ece\u7ed3\u679c\u4e2d\u53bb\u9664\u91cd\u590d\u9879\u8be5\u600e\u4e48\u529e\u5462\uff1f thinkphp \u63d0\u4f9b\u4e86\u4e00\u4e2a distinct \u65b9\u6cd5\uff0c\u7528\u4e8e\u53bb\u9664\u67e5\u8be2\u7ed3\u679c\u4e2d\u7684\u91cd\u590d\u9879\u3002\u4f7f\u7528\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u6dfb\u52a0 distinct \u65b9\u6cd5\u5373\u53ef\uff0c\u5982\u4e0b\u6240\u793a\uff1a $users = Db::name(‘user’)->distinct(true)->select(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0cdistinct(true) \u65b9\u6cd5\u8868\u793a\u6253\u5f00\u53bb\u91cd\u6807\u8bb0\u3002\u6267\u884c select() \u65b9\u6cd5\u65f6\uff0c\u7ed3\u679c\u96c6\u4e2d\u6240\u6709\u5217\u5747\u5c06\u72ec\u4e00\u65e0\u4e8c\u5730\u663e\u793a\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u9664\u4e86 distinct \u65b9\u6cd5\u4e4b\u5916\uff0cthinkphp \u4e2d\u8fd8\u63d0\u4f9b\u4e86\u53e6\u5916\u4e00\u4e2a\u65b9\u6cd5\u6765\u53bb\u9664\u67e5\u8be2\u7ed3\u679c\u4e2d\u7684\u91cd\u590d\u9879\uff0c\u5373 group \u65b9\u6cd5\u3002\u4f7f\u7528 group \u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u4e00\u4e2a\u5b57\u6bb5\u4f5c\u4e3a\u5206\u7ec4\u4f9d\u636e\uff0c\u4ece\u800c\u53bb\u91cd\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a $users = Db::name(‘user’) ->field(‘name, age’) ->group(‘name’) ->select(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a name \u5b57\u6bb5\u4e3a\u5206\u7ec4\u4f9d\u636e\uff0c\u5bf9 age \u5b57\u6bb5\u8fdb\u884c\u53bb\u91cd\u3002\u8fd9\u79cd\u65b9\u5f0f\u867d\u7136\u53ef\u4ee5\u89e3\u51b3\u53bb\u91cd\u95ee\u9898\uff0c\u4f46\u662f\u5f80\u5f80\u9700\u8981\u6307\u5b9a\u6bd4\u8f83\u591a\u7684\u5b57\u6bb5\uff0c\u4f1a\u589e\u52a0\u4ee3\u7801\u7684\u590d\u6742\u5ea6\u3002 \u7efc\u4e0a\u6240\u8ff0\uff0c\u53bb\u9664\u67e5\u8be2\u7ed3\u679c\u4e2d\u7684\u91cd\u590d\u9879\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u5728 thinkphp […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-22263","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=22263"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22263\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}