{"id":23905,"date":"2024-11-21T11:58:20","date_gmt":"2024-11-21T03:58:20","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23905\/"},"modified":"2024-11-21T11:58:20","modified_gmt":"2024-11-21T03:58:20","slug":"yii%e6%a1%86%e6%9e%b6%e4%b8%ad%e7%9a%84%e6%95%b0%e6%8d%ae%e6%9f%a5%e8%af%a2%ef%bc%9a%e9%ab%98%e6%95%88%e5%9c%b0%e8%ae%bf%e9%97%ae%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23905\/","title":{"rendered":"Yii\u6846\u67b6\u4e2d\u7684\u6570\u636e\u67e5\u8be2\uff1a\u9ad8\u6548\u5730\u8bbf\u95ee\u6570\u636e"},"content":{"rendered":"

yii\u6846\u67b6\u662f\u4e00\u4e2a\u5f00\u6e90\u7684php web\u5e94\u7528\u7a0b\u5e8f\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u4f17\u591a\u7684\u5de5\u5177\u548c\u7ec4\u4ef6\uff0c\u7b80\u5316\u4e86web\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u7684\u6d41\u7a0b\uff0c\u5176\u4e2d\u6570\u636e\u67e5\u8be2\u662f\u5176\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u7ec4\u4ef6\u4e4b\u4e00\u3002\u5728yii\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3csql\u7684\u8bed\u6cd5\u6765\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u4ece\u800c\u9ad8\u6548\u5730\u67e5\u8be2\u548c\u64cd\u4f5c\u6570\u636e\u3002<\/p>\n

Yii\u6846\u67b6\u7684\u67e5\u8be2\u6784\u5efa\u5668\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\u7c7b\u578b\uff1aActive Record\u67e5\u8be2\u3001Query Builder\u67e5\u8be2\u3001\u547d\u4ee4\u67e5\u8be2\u548c\u539f\u59cbSQL\u67e5\u8be2\u3002\u672c\u6587\u5c06\u9010\u4e00\u4ecb\u7ecd\u8fd9\u4e9b\u67e5\u8be2\u6784\u5efa\u5668\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\uff0c\u5e2e\u52a9\u521d\u5b66\u8005\u66f4\u597d\u5730\u638c\u63e1\u5982\u4f55\u4f7f\u7528Yii\u6846\u67b6\u4e2d\u7684\u6570\u636e\u67e5\u8be2\u3002<\/p>\n

    \n
  1. Active Record\u67e5\u8be2<\/li>\n<\/ol>\n

    Active Record\u6a21\u5f0f\u662fYii\u6846\u67b6\u4e2d\u6700\u5e38\u7528\u7684\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f\u4e4b\u4e00\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9762\u5411\u5bf9\u8c61\u7684\u63a5\u53e3\uff0c\u8ba9\u6211\u4eec\u53ef\u4ee5\u50cf\u64cd\u4f5c\u9762\u5411\u5bf9\u8c61\u7684\u5b9e\u4f8b\u4e00\u6837\u6765\u64cd\u4f5c\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002\u5728Yii\u6846\u67b6\u4e2d\uff0c\u6bcf\u4e2aActive Record\u7c7b\u5bf9\u5e94\u4e00\u4e2a\u6570\u636e\u5e93\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528\u8be5\u7c7b\u7684\u9759\u6001\u65b9\u6cd5\u6765\u8bbf\u95ee\u8be5\u8868\u4e2d\u7684\u6570\u636e\u3002<\/p>\n

    \u4ee5\u4e0b\u662f\u4e00\u4e2aActive Record\u67e5\u8be2\u7684\u4f8b\u5b50\uff1a<\/p>\n

    \/\/\u521b\u5efa\u4e00\u4e2aActive Record\u5bf9\u8c61\n$post = Post::findOne(1);\n\n\/\/\u8f93\u51fa\u8be5\u5bf9\u8c61\u7684\u5c5e\u6027\necho $post-&gt;title;<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528findOne()\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2aPost\u7c7b\u7684\u5b9e\u4f8b\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u67e5\u8be2\u6570\u636e\u5e93\u4e2dPost\u8868\u4e2d\u4e3b\u952e\u4e3a1\u7684\u8bb0\u5f55\u5e76\u8fd4\u56de\u4e00\u4e2aActive Record\u5bf9\u8c61\uff1b\u7136\u540e\u6211\u4eec\u4f7f\u7528\u8be5\u5bf9\u8c61\u7684title\u5c5e\u6027\u6765\u8bbf\u95ee\u8be5\u8bb0\u5f55\u7684\u6807\u9898\u5c5e\u6027\u3002<\/p>\n
    \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\u3001\u6392\u5e8f\u3001\u5206\u9875\u7b49\u64cd\u4f5c\u3002Yii\u6846\u67b6\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u8fd9\u4e9b\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528where()\u65b9\u6cd5\u6765\u6dfb\u52a0\u8fc7\u6ee4\u6761\u4ef6\uff0c\u4f7f\u7528orderBy()\u65b9\u6cd5\u6765\u6307\u5b9a\u6392\u5e8f\u65b9\u5f0f\uff0c\u4f7f\u7528limit()\u65b9\u6cd5\u6765\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0c\u4f7f\u7528offset()\u65b9\u6cd5\u6765\u6307\u5b9a\u8fd4\u56de\u8bb0\u5f55\u7684\u8d77\u59cb\u4f4d\u7f6e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n
    \/\/\u67e5\u8be2\u6807\u9898\u5305\u542b\u201cYii\u201d\u5e76\u4e14\u4f5c\u8005\u4e3a\u201cadmin\u201d\u7684\u6587\u7ae0\uff0c\u5e76\u6309\u7167\u53d1\u5e03\u65f6\u95f4\u5012\u5e8f\u6392\u5e8f\uff0c\u8fd4\u56de\u524d10\u6761\u8bb0\u5f55\n$posts = Post::find()-&gt;where(['like', 'title', 'Yii'])\n                      -&gt;andWhere(['author' =&gt; 'admin'])\n                      -&gt;orderBy(['created_at' =&gt; SORT_DESC])\n                      -&gt;limit(10)\n                      -&gt;offset(0)\n                      -&gt;all();<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86find()\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2aActive Record\u67e5\u8be2\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528where()\u548candWhere()\u65b9\u6cd5\u6dfb\u52a0\u4e86\u4e24\u4e2a\u8fc7\u6ee4\u6761\u4ef6\uff0c\u5206\u522b\u662f\u6807\u9898\u5305\u542b\u201cYii\u201d\u548c\u4f5c\u8005\u4e3a\u201cadmin\u201d\uff1b\u4f7f\u7528orderBy()\u65b9\u6cd5\u6307\u5b9a\u4e86\u6309\u7167\u53d1\u5e03\u65f6\u95f4\u5012\u5e8f\u6392\u5e8f\uff1b\u4f7f\u7528limit()\u65b9\u6cd5\u9650\u5236\u4e86\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u4e3a10\u6761\uff1b\u4f7f\u7528offset()\u65b9\u6cd5\u6307\u5b9a\u8fd4\u56de\u8bb0\u5f55\u7684\u8d77\u59cb\u4f4d\u7f6e\u4e3a0\u6761\u8bb0\u5f55\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528all()\u65b9\u6cd5\u6267\u884c\u67e5\u8be2\uff0c\u5e76\u8fd4\u56de\u6240\u6709\u7b26\u5408\u8981\u6c42\u7684\u8bb0\u5f55\u3002<\/p>\n
      \n
    1. Query Builder\u67e5\u8be2<\/li>\n<\/ol>\n
      Query Builder\u662fYii\u6846\u67b6\u4e2d\u53e6\u4e00\u4e2a\u5e38\u7528\u7684\u6570\u636e\u8bbf\u95ee\u65b9\u5f0f\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u94fe\u5f0f\u8c03\u7528\u7684\u65b9\u5f0f\u6765\u6784\u5efaSQL\u67e5\u8be2\u8bed\u53e5\uff0c\u6bd4\u8f83\u9002\u5408\u4e8e\u590d\u6742\u7684\u67e5\u8be2\u9700\u6c42\u3002\u5728Yii\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Yii::$app->db->createCommand()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2aQuery Builder\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u5bf9\u8c61\u7684\u4e00\u7cfb\u5217\u65b9\u6cd5\u6765\u6784\u5efa\u67e5\u8be2\u8bed\u53e5\u3002<\/p>\n
      \u4ee5\u4e0b\u662f\u4e00\u4e2aQuery Builder\u67e5\u8be2\u7684\u4f8b\u5b50\uff1a<\/p>\n
      \/\/\u521b\u5efa\u4e00\u4e2a\u67e5\u8be2\u6784\u5efa\u5668\u5bf9\u8c61\uff0c\u5e76\u6784\u5efa\u67e5\u8be2\u8bed\u53e5\n$query = Yii::$app-&gt;db-&gt;createCommand()\n        -&gt;select('id, title, content')\n        -&gt;from('post')\n        -&gt;where(['like', 'title', 'Yii'])\n        -&gt;andWhere(['author' =&gt; 'admin'])\n        -&gt;orderBy(['created_at' =&gt; SORT_DESC])\n        -&gt;limit(10)\n        -&gt;offset(0);\n\n\/\/\u6267\u884c\u67e5\u8be2\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u96c6\n$posts = $query-&gt;queryAll();<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528Yii::$app->db->createCommand()\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2aQuery Builder\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u5bf9\u8c61\u7684select()\u3001from()\u3001where()\u3001andWhere()\u3001orderBy()\u3001limit()\u548coffset()\u7b49\u65b9\u6cd5\u6765\u6784\u5efa\u67e5\u8be2\u8bed\u53e5\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528queryAll()\u65b9\u6cd5\u6267\u884c\u67e5\u8be2\uff0c\u5e76\u8fd4\u56de\u6240\u6709\u7b26\u5408\u8981\u6c42\u7684\u8bb0\u5f55\u3002<\/p>\n
      Query Builder\u4e0eActive Record\u6700\u5927\u7684\u533a\u522b\u5728\u4e8e\uff0cQuery Builder\u4e0d\u9700\u8981\u5b9a\u4e49\u6a21\u578b\u7c7b\uff0c\u56e0\u6b64\u9002\u7528\u4e8e\u4e00\u4e9b\u7b80\u5355\u7684\u67e5\u8be2\u573a\u666f\uff0c\u5982\u7edf\u8ba1\u7c7b\u67e5\u8be2\u3002<\/p>\n
        \n
      1. \u547d\u4ee4\u67e5\u8be2<\/li>\n<\/ol>\n
        \u547d\u4ee4\u67e5\u8be2\u662fYii\u6846\u67b6\u4e2d\u6700\u539f\u59cb\u7684\u6570\u636e\u8bbf\u95ee\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8be5\u65b9\u5f0f\u6765\u6267\u884c\u4e00\u4e9b\u4e0d\u9700\u8981\u8fd4\u56de\u7ed3\u679c\u96c6\u7684\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u5982\u66f4\u65b0\u3001\u5220\u9664\u3001\u63d2\u5165\u7b49\u3002\u5728Yii\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Yii::$app->db->createCommand()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2aCommand\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u5bf9\u8c61\u7684execute()\u65b9\u6cd5\u6765\u6267\u884cSQL\u8bed\u53e5\u3002<\/p>\n
        \u4ee5\u4e0b\u662f\u4e00\u4e2a\u547d\u4ee4\u67e5\u8be2\u7684\u4f8b\u5b50\uff1a<\/p>\n
        \/\/\u521b\u5efa\u4e00\u4e2a\u547d\u4ee4\u5bf9\u8c61\uff0c\u5e76\u6267\u884cSQL\u8bed\u53e5\nYii::$app-&gt;db-&gt;createCommand()\n        -&gt;update('post', ['status' =&gt; 1], 'author = \"admin\"')\n        -&gt;execute();<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528Yii::$app->db->createCommand()\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2aCommand\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u5bf9\u8c61\u7684update()\u65b9\u6cd5\u6784\u5efa\u4e86\u4e00\u6761\u66f4\u65b0\u8bed\u53e5\uff0c\u8be5\u8bed\u53e5\u5c06post\u8868\u4e2d\u6240\u6709author\u4e3a\u201cadmin\u201d\u7684\u8bb0\u5f55\u7684\u72b6\u6001\u5c5e\u6027\u66f4\u65b0\u4e3a1\uff1b\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528execute()\u65b9\u6cd5\u6267\u884c\u8be5\u66f4\u65b0\u8bed\u53e5\u3002<\/p>\n
          \n
        1. \u539f\u59cbSQL\u67e5\u8be2<\/li>\n<\/ol>\n
          \u5728\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u6267\u884c\u4e00\u4e9b\u590d\u6742\u7684\u67e5\u8be2\u8bed\u53e5\uff0c\u65e0\u6cd5\u901a\u8fc7Active Record\u3001Query Builder\u6216\u547d\u4ee4\u67e5\u8be2\u6765\u5904\u7406\uff0c\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528\u539f\u59cbSQL\u67e5\u8be2\u3002\u5728Yii\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Yii::$app->db->createCommand()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2aCommand\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u5bf9\u8c61\u7684setSql()\u65b9\u6cd5\u6765\u6307\u5b9a\u539f\u59cb\u7684SQL\u8bed\u53e5\uff0c\u5e76\u4f7f\u7528queryAll()\u65b9\u6cd5\u6267\u884c\u67e5\u8be2\u3002<\/p>\n
          \u4ee5\u4e0b\u662f\u4e00\u4e2a\u539f\u59cbSQL\u67e5\u8be2\u7684\u4f8b\u5b50\uff1a<\/p>\n
          \/\/\u521b\u5efa\u4e00\u4e2a\u547d\u4ee4\u5bf9\u8c61\uff0c\u5e76\u6267\u884c\u539f\u59cbSQL\u67e5\u8be2\n$connection = Yii::$app-&gt;db;\n$command = $connection-&gt;createCommand(\"\n    SELECT p.id, p.title, u.username\n    FROM post p LEFT JOIN user u ON p.author_id = u.id\n    WHERE p.status = 1 AND u.role = 'admin'\n    ORDER BY p.created_at DESC\n    LIMIT 10 OFFSET 0\n\");\n$posts = $command-&gt;queryAll();<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aCommand\u5bf9\u8c61\uff0c\u5e76\u4f7f\u7528setSql()\u65b9\u6cd5\u6307\u5b9a\u4e00\u6761\u539f\u59cb\u7684SQL\u67e5\u8be2\u8bed\u53e5\u3002\u8be5\u8bed\u53e5\u5c06post\u8868\u548cuser\u8868\u8fdb\u884c\u5de6\u8fde\u63a5\uff0c\u67e5\u8be2\u51fa\u6240\u6709\u72b6\u6001\u4e3a1\u4e14\u7528\u6237\u89d2\u8272\u4e3a\u201cadmin\u201d\u7684\u6587\u7ae0\uff0c\u5e76\u6309\u7167\u53d1\u5e03\u65f6\u95f4\u5012\u5e8f\u6392\u5e8f\uff0c\u8fd4\u56de\u524d10\u6761\u8bb0\u5f55\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528queryAll()\u65b9\u6cd5\u6267\u884c\u8be5\u67e5\u8be2\uff0c\u5e76\u8fd4\u56de\u6240\u6709\u7b26\u5408\u8981\u6c42\u7684\u8bb0\u5f55\u3002<\/p>\n
          \u603b\u7ed3\uff1a<\/p>\n
          \u5728Yii\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u5f0f\u6765\u8bbf\u95ee\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u5305\u62ecActive Record\u67e5\u8be2\u3001Query Builder\u67e5\u8be2\u3001\u547d\u4ee4\u67e5\u8be2\u548c\u539f\u59cbSQL\u67e5\u8be2\u3002\u4e0d\u540c\u7684\u67e5\u8be2\u6784\u5efa\u5668\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u67e5\u8be2\u573a\u666f\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u5b9e\u9645\u9700\u6c42\u6765\u9009\u62e9\u6700\u5408\u9002\u7684\u67e5\u8be2\u65b9\u5f0f\u3002\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u76f8\u4fe1\u8bfb\u8005\u5df2\u7ecf\u5bf9Yii\u6846\u67b6\u4e2d\u7684\u6570\u636e\u67e5\u8be2\u6709\u4e86\u66f4\u6df1\u5165\u7684\u4e86\u89e3\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u4f7f\u7528Yii\u6846\u67b6\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
          \u4ee5\u4e0a\u5c31\u662fYii\u6846\u67b6\u4e2d\u7684\u6570\u636e\u67e5\u8be2\uff1a\u9ad8\u6548\u5730\u8bbf\u95ee\u6570\u636e\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":"
          yii\u6846\u67b6\u662f\u4e00\u4e2a\u5f00\u6e90\u7684php web\u5e94\u7528\u7a0b\u5e8f\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u4f17\u591a\u7684\u5de5\u5177\u548c\u7ec4\u4ef6\uff0c\u7b80\u5316\u4e86web\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u7684\u6d41\u7a0b\uff0c\u5176\u4e2d\u6570\u636e\u67e5\u8be2\u662f\u5176\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u7ec4\u4ef6\u4e4b\u4e00\u3002\u5728yii\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3csql\u7684\u8bed\u6cd5\u6765\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u4ece\u800c\u9ad8\u6548\u5730\u67e5\u8be2\u548c\u64cd\u4f5c\u6570\u636e\u3002 Yii\u6846\u67b6\u7684\u67e5\u8be2\u6784\u5efa\u5668\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\u7c7b\u578b\uff1aActive Record\u67e5\u8be2\u3001Query Builder\u67e5\u8be2\u3001\u547d\u4ee4\u67e5\u8be2\u548c\u539f\u59cbSQL\u67e5\u8be2\u3002\u672c\u6587\u5c06\u9010\u4e00\u4ecb\u7ecd\u8fd9\u4e9b\u67e5\u8be2\u6784\u5efa\u5668\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\uff0c\u5e2e\u52a9\u521d\u5b66\u8005\u66f4\u597d\u5730\u638c\u63e1\u5982\u4f55\u4f7f\u7528Yii\u6846\u67b6\u4e2d\u7684\u6570\u636e\u67e5\u8be2\u3002 Active Record\u67e5\u8be2 Active Record\u6a21\u5f0f\u662fYii\u6846\u67b6\u4e2d\u6700\u5e38\u7528\u7684\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f\u4e4b\u4e00\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9762\u5411\u5bf9\u8c61\u7684\u63a5\u53e3\uff0c\u8ba9\u6211\u4eec\u53ef\u4ee5\u50cf\u64cd\u4f5c\u9762\u5411\u5bf9\u8c61\u7684\u5b9e\u4f8b\u4e00\u6837\u6765\u64cd\u4f5c\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002\u5728Yii\u6846\u67b6\u4e2d\uff0c\u6bcf\u4e2aActive Record\u7c7b\u5bf9\u5e94\u4e00\u4e2a\u6570\u636e\u5e93\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528\u8be5\u7c7b\u7684\u9759\u6001\u65b9\u6cd5\u6765\u8bbf\u95ee\u8be5\u8868\u4e2d\u7684\u6570\u636e\u3002 \u4ee5\u4e0b\u662f\u4e00\u4e2aActive Record\u67e5\u8be2\u7684\u4f8b\u5b50\uff1a \/\/\u521b\u5efa\u4e00\u4e2aActive Record\u5bf9\u8c61 $post = Post::findOne(1); \/\/\u8f93\u51fa\u8be5\u5bf9\u8c61\u7684\u5c5e\u6027 echo $post-&gt;title; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528findOne()\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2aPost\u7c7b\u7684\u5b9e\u4f8b\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u67e5\u8be2\u6570\u636e\u5e93\u4e2dPost\u8868\u4e2d\u4e3b\u952e\u4e3a1\u7684\u8bb0\u5f55\u5e76\u8fd4\u56de\u4e00\u4e2aActive Record\u5bf9\u8c61\uff1b\u7136\u540e\u6211\u4eec\u4f7f\u7528\u8be5\u5bf9\u8c61\u7684title\u5c5e\u6027\u6765\u8bbf\u95ee\u8be5\u8bb0\u5f55\u7684\u6807\u9898\u5c5e\u6027\u3002 \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\u3001\u6392\u5e8f\u3001\u5206\u9875\u7b49\u64cd\u4f5c\u3002Yii\u6846\u67b6\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u8fd9\u4e9b\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528where()\u65b9\u6cd5\u6765\u6dfb\u52a0\u8fc7\u6ee4\u6761\u4ef6\uff0c\u4f7f\u7528orderBy()\u65b9\u6cd5\u6765\u6307\u5b9a\u6392\u5e8f\u65b9\u5f0f\uff0c\u4f7f\u7528limit()\u65b9\u6cd5\u6765\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0c\u4f7f\u7528offset()\u65b9\u6cd5\u6765\u6307\u5b9a\u8fd4\u56de\u8bb0\u5f55\u7684\u8d77\u59cb\u4f4d\u7f6e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f8b\u5b50\uff1a \/\/\u67e5\u8be2\u6807\u9898\u5305\u542b\u201cYii\u201d\u5e76\u4e14\u4f5c\u8005\u4e3a\u201cadmin\u201d\u7684\u6587\u7ae0\uff0c\u5e76\u6309\u7167\u53d1\u5e03\u65f6\u95f4\u5012\u5e8f\u6392\u5e8f\uff0c\u8fd4\u56de\u524d10\u6761\u8bb0\u5f55 $posts = Post::find()-&gt;where([‘like’, ‘title’, ‘Yii’]) -&gt;andWhere([‘author’ =&gt; ‘admin’]) -&gt;orderBy([‘created_at’ =&gt; SORT_DESC]) -&gt;limit(10) -&gt;offset(0) -&gt;all(); \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86find()\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2aActive Record\u67e5\u8be2\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528where()\u548candWhere()\u65b9\u6cd5\u6dfb\u52a0\u4e86\u4e24\u4e2a\u8fc7\u6ee4\u6761\u4ef6\uff0c\u5206\u522b\u662f\u6807\u9898\u5305\u542b\u201cYii\u201d\u548c\u4f5c\u8005\u4e3a\u201cadmin\u201d\uff1b\u4f7f\u7528orderBy()\u65b9\u6cd5\u6307\u5b9a\u4e86\u6309\u7167\u53d1\u5e03\u65f6\u95f4\u5012\u5e8f\u6392\u5e8f\uff1b\u4f7f\u7528limit()\u65b9\u6cd5\u9650\u5236\u4e86\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u4e3a10\u6761\uff1b\u4f7f\u7528offset()\u65b9\u6cd5\u6307\u5b9a\u8fd4\u56de\u8bb0\u5f55\u7684\u8d77\u59cb\u4f4d\u7f6e\u4e3a0\u6761\u8bb0\u5f55\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528all()\u65b9\u6cd5\u6267\u884c\u67e5\u8be2\uff0c\u5e76\u8fd4\u56de\u6240\u6709\u7b26\u5408\u8981\u6c42\u7684\u8bb0\u5f55\u3002 Query Builder\u67e5\u8be2 Query Builder\u662fYii\u6846\u67b6\u4e2d\u53e6\u4e00\u4e2a\u5e38\u7528\u7684\u6570\u636e\u8bbf\u95ee\u65b9\u5f0f\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u94fe\u5f0f\u8c03\u7528\u7684\u65b9\u5f0f\u6765\u6784\u5efaSQL\u67e5\u8be2\u8bed\u53e5\uff0c\u6bd4\u8f83\u9002\u5408\u4e8e\u590d\u6742\u7684\u67e5\u8be2\u9700\u6c42\u3002\u5728Yii\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Yii::$app->db->createCommand()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2aQuery Builder\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u5bf9\u8c61\u7684\u4e00\u7cfb\u5217\u65b9\u6cd5\u6765\u6784\u5efa\u67e5\u8be2\u8bed\u53e5\u3002 \u4ee5\u4e0b\u662f\u4e00\u4e2aQuery Builder\u67e5\u8be2\u7684\u4f8b\u5b50\uff1a \/\/\u521b\u5efa\u4e00\u4e2a\u67e5\u8be2\u6784\u5efa\u5668\u5bf9\u8c61\uff0c\u5e76\u6784\u5efa\u67e5\u8be2\u8bed\u53e5 $query = Yii::$app-&gt;db-&gt;createCommand() -&gt;select(‘id, title, […]<\/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-23905","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23905","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=23905"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23905\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}