{"id":22891,"date":"2024-11-21T15:51:28","date_gmt":"2024-11-21T07:51:28","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22891\/"},"modified":"2024-11-21T15:51:28","modified_gmt":"2024-11-21T07:51:28","slug":"thinkphp5%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e6%9f%a5%e8%af%a2%e8%ae%a1%e6%95%b0%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22891\/","title":{"rendered":"thinkphp5\u5982\u4f55\u5b9e\u73b0\u67e5\u8be2\u8ba1\u6570\u529f\u80fd"},"content":{"rendered":"<\/p>\n

\u4e00\u3001\u67e5\u8be2<\/strong><\/p>\n

\u5728ThinkPHP5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7Db\u7c7b\u6216\u8005Model\u7c7b\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u67e5\u8be2\u3002\u8fd9\u91cc\u4ee5Model\u7c7b\u4e3a\u4f8b\u8fdb\u884c\u4ecb\u7ecd\u3002<\/p>\n

    \n
  1. \n

    \u57fa\u672c\u67e5\u8be2<\/p>\n<\/li>\n<\/ol>\n

    \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7select()\u65b9\u6cd5\u5b9e\u73b0\u57fa\u672c\u7684\u67e5\u8be2\u64cd\u4f5c\uff0c\u5982\u4e0b\uff1a<\/p>\n

    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

    \/\/\u521b\u5efa\u6a21\u578b\u5bf9\u8c61\n$user = new UserModel();\n\/\/\u67e5\u8be2user\u8868\u4e2d\u59d3\u540d\u4e3a\u5f20\u4e09\u7684\u8bb0\u5f55\n$result = $user -&gt; where('name','\u5f20\u4e09') -&gt; select();<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cwhere()\u65b9\u6cd5\u7528\u4e8e\u6307\u5b9a\u67e5\u8be2\u6761\u4ef6\uff0c\u5176\u53c2\u6570\u683c\u5f0f\u4e3awhere(\u67e5\u8be2\u5b57\u6bb5,\u67e5\u8be2\u503c)\u3002\u5f53\u67e5\u8be2\u6761\u4ef6\u4e3a\u591a\u4e2a\u5b57\u6bb5\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u94fe\u5f0f\u64cd\u4f5c\u3002<\/p>\n
    \u5982\u4e0b\uff1a<\/p>\n
    $user -&gt; where('name','\u5f20\u4e09') -&gt; where('age',20) -&gt; select();<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6b64\u5904\u8868\u793a\u67e5\u8be2user\u8868\u4e2d\u59d3\u540d\u4e3a\u5f20\u4e09\uff0c\u5e74\u9f84\u4e3a20\u7684\u8bb0\u5f55\u3002<\/p>\n
      \n
    1. \n
      \u6761\u4ef6\u67e5\u8be2<\/p>\n<\/li>\n<\/ol>\n
      \u6211\u4eec\u53ef\u4ee5\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u52a0\u5165where()\u3001whereOr()\u3001whereLike()\u7b49\u6761\u4ef6\u67e5\u8be2\u65b9\u6cd5\uff0c\u4ee5\u5b9e\u73b0\u66f4\u7075\u6d3b\u7684\u67e5\u8be2\u64cd\u4f5c\u3002<\/p>\n
      \u5982\u4e0b\uff1a<\/p>\n
      \/\/\u67e5\u8be2user\u8868\u4e2d\u5e74\u9f84\u5927\u4e8e20\uff0c\u4e14\u6027\u522b\u4e3a\u7537\u7684\u8bb0\u5f55\n$result = $user -&gt; where('age','&gt;',20) -&gt; where('gender','\u7537') -&gt; select();\n\/\/\u67e5\u8be2user\u8868\u4e2d\u5e74\u9f84\u5c0f\u4e8e20\u6216\u6027\u522b\u4e3a\u5973\u7684\u8bb0\u5f55\n$result = $user -&gt; where('age',' whereOr('gender','\u5973') -&gt; select();\n\/\/\u67e5\u8be2user\u8868\u4e2d\u59d3\u540d\u5305\u542b\u2018\u5f20\u2019\u7684\u8bb0\u5f55\n$result = $user -&gt; whereLike('name','%\u5f20%') -&gt; select();<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u5728\u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0cwhere()\u65b9\u6cd5\u548cwhereOr()\u65b9\u6cd5\u5206\u522b\u8868\u793a\u67e5\u8be2\u6761\u4ef6\u4e3a\u201c\u4e14\u201d\u548c\u201c\u6216\u201d\u7684\u5173\u7cfb\uff0c\u5176\u53c2\u6570\u683c\u5f0f\u76f8\u540c\uff1b\u800cwhereLike()\u65b9\u6cd5\u7528\u4e8e\u5b9e\u73b0\u6a21\u7cca\u67e5\u8be2\uff0c\u5176\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8868\u793a\u67e5\u8be2\u5339\u914d\u7684\u6761\u4ef6\u3002<\/p>\n
      \u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u94fe\u5f0f\u8c03\u7528order()\u6765\u6392\u5e8f\u67e5\u8be2\u7ed3\u679c\uff0c\u5982\u4e0b\uff1a<\/p>\n
      $result = $user -&gt; where('age','&gt;',20) -&gt; order('age desc') -&gt; select();<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u4e0a\u8ff0\u4ee3\u7801\u8868\u793a\u67e5\u8be2user\u8868\u4e2d\u5e74\u9f84\u5927\u4e8e20\u7684\u8bb0\u5f55\uff0c\u5e76\u6309\u7167\u5e74\u9f84\u4ece\u5927\u5230\u5c0f\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n
        \n
      1. \n
        \u5206\u9875\u67e5\u8be2<\/p>\n<\/li>\n<\/ol>\n
        \u5f53\u6211\u4eec\u9700\u8981\u67e5\u8be2\u5927\u91cf\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5206\u9875\u67e5\u8be2\u529f\u80fd\u4ee5\u9632\u6b62\u6570\u636e\u91cf\u8fc7\u5927\u5bfc\u81f4\u670d\u52a1\u5668\u8d1f\u8f7d\u8fc7\u91cd\u3002<\/p>\n
        \u5728ThinkPHP5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528limit()\u65b9\u6cd5\u5b9e\u73b0\u5206\u9875\u67e5\u8be2\u3002limit()\u65b9\u6cd5\u6709\u4e24\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u8868\u793a\u8d77\u59cb\u504f\u79fb\u91cf\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8868\u793a\u6bcf\u9875\u663e\u793a\u7684\u8bb0\u5f55\u6570\u3002<\/p>\n
        \u5982\u4e0b\uff1a<\/p>\n
        \/\/ \u6bcf\u9875\u663e\u793a3\u6761\u8bb0\u5f55\uff0c\u67e5\u8be2\u7b2c2\u9875\u7684\u6570\u636e\n$result = $user -&gt; limit(3,3) -&gt; select();<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u4e0a\u8ff0\u4ee3\u7801\u8868\u793a\u67e5\u8be2user\u8868\u4e2d\u7b2c2\u9875\uff0c\u6bcf\u9875\u663e\u793a3\u6761\u8bb0\u5f55\u3002<\/p>\n
        \u4e8c\u3001\u8ba1\u6570<\/strong><\/p>\n
        \u5728ThinkPHP5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7count()\u65b9\u6cd5\u5b9e\u73b0\u57fa\u672c\u7684\u8ba1\u6570\u529f\u80fd\u3002<\/p>\n
        \u5982\u4e0b\uff1a<\/p>\n
        \/\/\u8ba1\u7b97user\u8868\u4e2d\u8bb0\u5f55\u603b\u6570\n$count = $user -&gt; count();\n\/\/\u8ba1\u7b97user\u8868\u4e2d\u5e74\u9f84\u5927\u4e8e20\u7684\u8bb0\u5f55\u6570\n$count = $user -&gt; where('age','&gt;',20) -&gt; count();<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0ccount()\u65b9\u6cd5\u5b9e\u9645\u4e0a\u662f\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u4e86\u4e00\u6b21\u67e5\u8be2\uff0c\u56e0\u6b64\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5e94\u8be5\u5c3d\u91cf\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u8ba1\u6570\u64cd\u4f5c\uff0c\u4ee5\u63d0\u9ad8\u5e94\u7528\u6027\u80fd\u3002<\/p>\n
        \u4ee5\u4e0a\u5c31\u662f5\u5982\u4f55\u5b9e\u73b0\u67e5\u8be2\u8ba1\u6570\u529f\u80fd\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":"
        \u4e00\u3001\u67e5\u8be2 \u5728ThinkPHP5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7Db\u7c7b\u6216\u8005Model\u7c7b\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u67e5\u8be2\u3002\u8fd9\u91cc\u4ee5Model\u7c7b\u4e3a\u4f8b\u8fdb\u884c\u4ecb\u7ecd\u3002 \u57fa\u672c\u67e5\u8be2 \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7select()\u65b9\u6cd5\u5b9e\u73b0\u57fa\u672c\u7684\u67e5\u8be2\u64cd\u4f5c\uff0c\u5982\u4e0b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \/\/\u521b\u5efa\u6a21\u578b\u5bf9\u8c61 $user = new UserModel(); \/\/\u67e5\u8be2user\u8868\u4e2d\u59d3\u540d\u4e3a\u5f20\u4e09\u7684\u8bb0\u5f55 $result = $user -&gt; where(‘name’,’\u5f20\u4e09’) -&gt; select(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cwhere()\u65b9\u6cd5\u7528\u4e8e\u6307\u5b9a\u67e5\u8be2\u6761\u4ef6\uff0c\u5176\u53c2\u6570\u683c\u5f0f\u4e3awhere(\u67e5\u8be2\u5b57\u6bb5,\u67e5\u8be2\u503c)\u3002\u5f53\u67e5\u8be2\u6761\u4ef6\u4e3a\u591a\u4e2a\u5b57\u6bb5\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u94fe\u5f0f\u64cd\u4f5c\u3002 \u5982\u4e0b\uff1a $user -&gt; where(‘name’,’\u5f20\u4e09’) -&gt; where(‘age’,20) -&gt; select(); \u767b\u5f55\u540e\u590d\u5236 \u6b64\u5904\u8868\u793a\u67e5\u8be2user\u8868\u4e2d\u59d3\u540d\u4e3a\u5f20\u4e09\uff0c\u5e74\u9f84\u4e3a20\u7684\u8bb0\u5f55\u3002 \u6761\u4ef6\u67e5\u8be2 \u6211\u4eec\u53ef\u4ee5\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u52a0\u5165where()\u3001whereOr()\u3001whereLike()\u7b49\u6761\u4ef6\u67e5\u8be2\u65b9\u6cd5\uff0c\u4ee5\u5b9e\u73b0\u66f4\u7075\u6d3b\u7684\u67e5\u8be2\u64cd\u4f5c\u3002 \u5982\u4e0b\uff1a \/\/\u67e5\u8be2user\u8868\u4e2d\u5e74\u9f84\u5927\u4e8e20\uff0c\u4e14\u6027\u522b\u4e3a\u7537\u7684\u8bb0\u5f55 $result = $user -&gt; where(‘age’,’&gt;’,20) -&gt; where(‘gender’,’\u7537’) -&gt; select(); \/\/\u67e5\u8be2user\u8868\u4e2d\u5e74\u9f84\u5c0f\u4e8e20\u6216\u6027\u522b\u4e3a\u5973\u7684\u8bb0\u5f55 $result = $user -&gt; where(‘age’,’ whereOr(‘gender’,’\u5973’) -&gt; select(); \/\/\u67e5\u8be2user\u8868\u4e2d\u59d3\u540d\u5305\u542b\u2018\u5f20\u2019\u7684\u8bb0\u5f55 $result = $user -&gt; whereLike(‘name’,’%\u5f20%’) -&gt; select(); \u767b\u5f55\u540e\u590d\u5236 \u5728\u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0cwhere()\u65b9\u6cd5\u548cwhereOr()\u65b9\u6cd5\u5206\u522b\u8868\u793a\u67e5\u8be2\u6761\u4ef6\u4e3a\u201c\u4e14\u201d\u548c\u201c\u6216\u201d\u7684\u5173\u7cfb\uff0c\u5176\u53c2\u6570\u683c\u5f0f\u76f8\u540c\uff1b\u800cwhereLike()\u65b9\u6cd5\u7528\u4e8e\u5b9e\u73b0\u6a21\u7cca\u67e5\u8be2\uff0c\u5176\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8868\u793a\u67e5\u8be2\u5339\u914d\u7684\u6761\u4ef6\u3002 \u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u94fe\u5f0f\u8c03\u7528order()\u6765\u6392\u5e8f\u67e5\u8be2\u7ed3\u679c\uff0c\u5982\u4e0b\uff1a $result = $user -&gt; where(‘age’,’&gt;’,20) -&gt; order(‘age desc’) -&gt; select(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u4ee3\u7801\u8868\u793a\u67e5\u8be2user\u8868\u4e2d\u5e74\u9f84\u5927\u4e8e20\u7684\u8bb0\u5f55\uff0c\u5e76\u6309\u7167\u5e74\u9f84\u4ece\u5927\u5230\u5c0f\u8fdb\u884c\u6392\u5e8f\u3002 \u5206\u9875\u67e5\u8be2 \u5f53\u6211\u4eec\u9700\u8981\u67e5\u8be2\u5927\u91cf\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5206\u9875\u67e5\u8be2\u529f\u80fd\u4ee5\u9632\u6b62\u6570\u636e\u91cf\u8fc7\u5927\u5bfc\u81f4\u670d\u52a1\u5668\u8d1f\u8f7d\u8fc7\u91cd\u3002 \u5728ThinkPHP5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528limit()\u65b9\u6cd5\u5b9e\u73b0\u5206\u9875\u67e5\u8be2\u3002limit()\u65b9\u6cd5\u6709\u4e24\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u8868\u793a\u8d77\u59cb\u504f\u79fb\u91cf\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8868\u793a\u6bcf\u9875\u663e\u793a\u7684\u8bb0\u5f55\u6570\u3002 \u5982\u4e0b\uff1a \/\/ \u6bcf\u9875\u663e\u793a3\u6761\u8bb0\u5f55\uff0c\u67e5\u8be2\u7b2c2\u9875\u7684\u6570\u636e $result = $user -&gt; limit(3,3) -&gt; select(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u4ee3\u7801\u8868\u793a\u67e5\u8be2user\u8868\u4e2d\u7b2c2\u9875\uff0c\u6bcf\u9875\u663e\u793a3\u6761\u8bb0\u5f55\u3002 \u4e8c\u3001\u8ba1\u6570 \u5728ThinkPHP5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7count()\u65b9\u6cd5\u5b9e\u73b0\u57fa\u672c\u7684\u8ba1\u6570\u529f\u80fd\u3002 \u5982\u4e0b\uff1a \/\/\u8ba1\u7b97user\u8868\u4e2d\u8bb0\u5f55\u603b\u6570 $count = $user -&gt; count(); \/\/\u8ba1\u7b97user\u8868\u4e2d\u5e74\u9f84\u5927\u4e8e20\u7684\u8bb0\u5f55\u6570 $count = $user -&gt; where(‘age’,’&gt;’,20) -&gt; count(); \u767b\u5f55\u540e\u590d\u5236 \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0ccount()\u65b9\u6cd5\u5b9e\u9645\u4e0a\u662f\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u4e86\u4e00\u6b21\u67e5\u8be2\uff0c\u56e0\u6b64\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5e94\u8be5\u5c3d\u91cf\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u8ba1\u6570\u64cd\u4f5c\uff0c\u4ee5\u63d0\u9ad8\u5e94\u7528\u6027\u80fd\u3002 \u4ee5\u4e0a\u5c31\u662f5\u5982\u4f55\u5b9e\u73b0\u67e5\u8be2\u8ba1\u6570\u529f\u80fd\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-22891","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22891","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=22891"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22891\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22891"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22891"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}