{"id":23968,"date":"2024-11-21T11:13:08","date_gmt":"2024-11-21T03:13:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23968\/"},"modified":"2024-11-21T11:13:08","modified_gmt":"2024-11-21T03:13:08","slug":"yii%e6%a1%86%e6%9e%b6%e4%b8%ad%e7%9a%84dbcommand%e5%af%b9%e8%b1%a1%ef%bc%9a%e7%9b%b4%e6%8e%a5%e8%b0%83%e7%94%a8sql%e8%af%ad%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23968\/","title":{"rendered":"Yii\u6846\u67b6\u4e2d\u7684DbCommand\u5bf9\u8c61\uff1a\u76f4\u63a5\u8c03\u7528SQL\u8bed\u53e5"},"content":{"rendered":"

yii\u6846\u67b6\u662f\u4e00\u4e2a\u5f00\u6e90\u7684php\u6846\u67b6\uff0c\u4ee5\u201c\u5f00\u53d1\u5feb\u901f\u3001\u9ad8\u6548\u3001\u5b89\u5168\u201d\u7684\u7406\u5ff5\u4e3a\u6838\u5fc3\uff0c\u62e5\u6709\u975e\u5e38\u5f3a\u5927\u7684\u529f\u80fd\u548c\u8f7b\u91cf\u7ea7\u7684\u6027\u80fd\u3002\u5176\u4e2ddbcommand\u5bf9\u8c61\u662fyii\u6846\u67b6\u4e2d\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u7ec4\u4ef6\uff0c\u5728\u6570\u636e\u64cd\u4f5c\u65b9\u9762\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u4eca\u5929\u6211\u4eec\u5c31\u6765\u63a2\u8ba8\u4e00\u4e0byii\u6846\u67b6\u4e2d\u7684dbcommand\u5bf9\u8c61\u5982\u4f55\u76f4\u63a5\u8c03\u7528\u6765\u64cd\u4f5c\u6570\u636e\u5e93\u3002<\/p>\n

\u5728Yii\u6846\u67b6\u4e2d\uff0cDbCommand\u5bf9\u8c61\u6700\u4e3b\u8981\u7684\u529f\u80fd\u5c31\u662f\u6267\u884cSQL\u8bed\u53e5\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6765\u521b\u5efa\u4e00\u4e2aDbCommand\u5bf9\u8c61\uff1a<\/p>\n

$connection = Yii::$app-&gt;getDb();  \n$command = $connection-&gt;createCommand($sql);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff0c$sql\u53c2\u6570\u5c31\u662f\u9700\u8981\u6267\u884c\u7684SQL\u8bed\u53e5\u3002\u521b\u5efaDbCommand\u5bf9\u8c61\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u5b83\u7684execute()\u65b9\u6cd5\u6765\u6267\u884cSQL\u8bed\u53e5\uff1a<\/p>\n
$result = $command-&gt;execute();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u6267\u884c\u5b8cSQL\u8bed\u53e5\u4e4b\u540e\uff0c$result\u53d8\u91cf\u4e2d\u5c06\u4f1a\u5b58\u50a8\u6267\u884c\u7ed3\u679c\u3002\u8fd9\u4e2a\u7ed3\u679c\u53ef\u4ee5\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793aSQL\u8bed\u53e5\u6267\u884c\u5f71\u54cd\u7684\u884c\u6570\uff1b\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u8868\u793aSQL\u8bed\u53e5\u67e5\u8be2\u5230\u7684\u7ed3\u679c\u96c6\u3002\u5177\u4f53\u7684\u7ed3\u679c\u7c7b\u578b\u4f9d\u8d56\u4e8e\u6267\u884c\u7684SQL\u8bed\u53e5\u3002<\/p>\n
\u9664\u4e86execute()\u65b9\u6cd5\uff0cDbCommand\u5bf9\u8c61\u8fd8\u63d0\u4f9b\u4e86\u5f88\u591a\u5176\u4ed6\u7684\u65b9\u6cd5\uff0c\u4f8b\u5982insert()\u3001update()\u3001delete()\u7b49\u7b49\u3002\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u662f\u4e00\u4e9b\u5e38\u89c1\u7684SQL\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5728\u4e0d\u9700\u8981\u624b\u52a8\u7f16\u5199SQL\u8bed\u53e5\u7684\u60c5\u51b5\u4e0b\u76f4\u63a5\u8c03\u7528\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u9700\u8981\u63d2\u5165\u4e00\u6761\u65b0\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
$command-&gt;insert('user', [\n    'username' =&gt; 'test',\n    'password' =&gt; 'testpass',\n    'email' =&gt; 'test@test.com',\n]);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u4f1a\u5411\u540d\u4e3a”user”\u7684\u8868\u4e2d\u63d2\u5165\u4e00\u6761\u8bb0\u5f55\uff0c\u5305\u62ec\u7528\u6237\u540d\u3001\u5bc6\u7801\u3001\u90ae\u7bb1\u7b49\u5b57\u6bb5\u3002Yii\u6846\u67b6\u4f1a\u81ea\u52a8\u5c06\u5b57\u6bb5\u540d\u548c\u5b57\u6bb5\u503c\u7ec4\u5408\u6210\u4e00\u6761INSERT\u8bed\u53e5\uff0c\u5e76\u6267\u884c\u8be5\u8bed\u53e5\u3002<\/p>\n
\u9664\u4e86\u8fd9\u4e9b\u5e38\u89c1\u7684SQL\u64cd\u4f5c\u4e4b\u5916\uff0cDbCommand\u5bf9\u8c61\u8fd8\u5177\u6709\u4e00\u4e9b\u9ad8\u7ea7\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7bindParam()\u65b9\u6cd5\u6765\u7ed1\u5b9aSQL\u8bed\u53e5\u4e2d\u7684\u53c2\u6570\u3002\u8fd9\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u9884\u9632SQL\u6ce8\u5165\u653b\u51fb\uff0c\u4fdd\u8bc1SQL\u8bed\u53e5\u7684\u5b89\u5168\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5728SQL\u8bed\u53e5\u4e2d\u4f7f\u7528bindParam()\u65b9\u6cd5\u7684\u4f8b\u5b50\uff1a<\/p>\n
$command = $connection-&gt;createCommand('SELECT * FROM user WHERE status=:status');\n$command-&gt;bindParam(':status', $status);\n$users = $command-&gt;queryAll();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86”SELECT”\u8bed\u53e5\u67e5\u8be2\u4e86\u6240\u6709\u72b6\u6001\u4e3a$status\u7684\u7528\u6237\u3002\u4f7f\u7528bindParam()\u65b9\u6cd5\u53ef\u4ee5\u5c06$status\u53c2\u6570\u7ed1\u5b9a\u5230SQL\u8bed\u53e5\u4e2d\u7684:status\u5360\u4f4d\u7b26\u3002\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u81ea\u52a8\u8f6c\u4e49\u53c2\u6570\u503c\uff0c\u786e\u4fddSQL\u8bed\u53e5\u4e0d\u53d7\u5230\u6076\u610f\u653b\u51fb\u3002<\/p>\n
\u6b64\u5916\uff0cDbCommand\u5bf9\u8c61\u8fd8\u652f\u6301\u4e8b\u52a1\u7684\u7ba1\u7406\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528beginTransaction()\u65b9\u6cd5\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1\uff0c\u4f7f\u7528commit()\u65b9\u6cd5\u63d0\u4ea4\u4e8b\u52a1\uff0c\u4f7f\u7528rollback()\u65b9\u6cd5\u56de\u6eda\u4e8b\u52a1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u4e8b\u52a1\u7684\u4f8b\u5b50\uff1a<\/p>\n
$transaction = $connection-&gt;beginTransaction();\ntry {\n    $command1 = $connection-&gt;createCommand($sql1);\n    $command1-&gt;execute();\n    $command2 = $connection-&gt;createCommand($sql2);\n    $command2-&gt;execute();\n    \/\/ ...\u6267\u884c\u66f4\u591a\u7684\u64cd\u4f5c\n    $transaction-&gt;commit();\n} catch (Exception $e) {\n    $transaction-&gt;rollBack();\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c06\u591a\u4e2aSQL\u8bed\u53e5\u5c01\u88c5\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u3002\u5982\u679c\u4e00\u4e2a\u8bed\u53e5\u6267\u884c\u5931\u8d25\uff0c\u6574\u4e2a\u4e8b\u52a1\u5c31\u4f1a\u88ab\u56de\u6eda\uff0c\u6240\u6709\u6267\u884c\u8fc7\u7684\u8bed\u53e5\u90fd\u4f1a\u64a4\u9500\u3002\u8fd9\u53ef\u4ee5\u907f\u514d\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u95ee\u9898\u3002<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0cDbCommand\u5bf9\u8c61\u662fYii\u6846\u67b6\u4e2d\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u76f4\u63a5\u6267\u884cSQL\u8bed\u53e5\uff0c\u5feb\u901f\u9ad8\u6548\u5730\u64cd\u4f5c\u6570\u636e\u5e93\u3002\u901a\u8fc7\u8fd9\u7bc7\u6587\u7ae0\uff0c\u6211\u4eec\u4e86\u89e3\u4e86\u4e00\u4e9b\u57fa\u672c\u7684\u7528\u6cd5\u548c\u9ad8\u7ea7\u529f\u80fd\u3002\u5982\u679c\u60a8\u6b63\u5728\u5f00\u53d1\u4e00\u4e2aYii\u6846\u67b6\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u4e0d\u59a8\u5c1d\u8bd5\u4f7f\u7528DbCommand\u5bf9\u8c61\uff0c\u76f8\u4fe1\u5b83\u4f1a\u5e26\u7ed9\u60a8\u5f88\u591a\u60ca\u559c\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fYii\u6846\u67b6\u4e2d\u7684DbCommand\u5bf9\u8c61\uff1a\u76f4\u63a5\u8c03\u7528SQL\u8bed\u53e5\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\u6846\u67b6\uff0c\u4ee5\u201c\u5f00\u53d1\u5feb\u901f\u3001\u9ad8\u6548\u3001\u5b89\u5168\u201d\u7684\u7406\u5ff5\u4e3a\u6838\u5fc3\uff0c\u62e5\u6709\u975e\u5e38\u5f3a\u5927\u7684\u529f\u80fd\u548c\u8f7b\u91cf\u7ea7\u7684\u6027\u80fd\u3002\u5176\u4e2ddbcommand\u5bf9\u8c61\u662fyii\u6846\u67b6\u4e2d\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u7ec4\u4ef6\uff0c\u5728\u6570\u636e\u64cd\u4f5c\u65b9\u9762\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u4eca\u5929\u6211\u4eec\u5c31\u6765\u63a2\u8ba8\u4e00\u4e0byii\u6846\u67b6\u4e2d\u7684dbcommand\u5bf9\u8c61\u5982\u4f55\u76f4\u63a5\u8c03\u7528\u6765\u64cd\u4f5c\u6570\u636e\u5e93\u3002 \u5728Yii\u6846\u67b6\u4e2d\uff0cDbCommand\u5bf9\u8c61\u6700\u4e3b\u8981\u7684\u529f\u80fd\u5c31\u662f\u6267\u884cSQL\u8bed\u53e5\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6765\u521b\u5efa\u4e00\u4e2aDbCommand\u5bf9\u8c61\uff1a $connection = Yii::$app-&gt;getDb(); $command = $connection-&gt;createCommand($sql); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c$sql\u53c2\u6570\u5c31\u662f\u9700\u8981\u6267\u884c\u7684SQL\u8bed\u53e5\u3002\u521b\u5efaDbCommand\u5bf9\u8c61\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u5b83\u7684execute()\u65b9\u6cd5\u6765\u6267\u884cSQL\u8bed\u53e5\uff1a $result = $command-&gt;execute(); \u767b\u5f55\u540e\u590d\u5236 \u5728\u6267\u884c\u5b8cSQL\u8bed\u53e5\u4e4b\u540e\uff0c$result\u53d8\u91cf\u4e2d\u5c06\u4f1a\u5b58\u50a8\u6267\u884c\u7ed3\u679c\u3002\u8fd9\u4e2a\u7ed3\u679c\u53ef\u4ee5\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793aSQL\u8bed\u53e5\u6267\u884c\u5f71\u54cd\u7684\u884c\u6570\uff1b\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u8868\u793aSQL\u8bed\u53e5\u67e5\u8be2\u5230\u7684\u7ed3\u679c\u96c6\u3002\u5177\u4f53\u7684\u7ed3\u679c\u7c7b\u578b\u4f9d\u8d56\u4e8e\u6267\u884c\u7684SQL\u8bed\u53e5\u3002 \u9664\u4e86execute()\u65b9\u6cd5\uff0cDbCommand\u5bf9\u8c61\u8fd8\u63d0\u4f9b\u4e86\u5f88\u591a\u5176\u4ed6\u7684\u65b9\u6cd5\uff0c\u4f8b\u5982insert()\u3001update()\u3001delete()\u7b49\u7b49\u3002\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u662f\u4e00\u4e9b\u5e38\u89c1\u7684SQL\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5728\u4e0d\u9700\u8981\u624b\u52a8\u7f16\u5199SQL\u8bed\u53e5\u7684\u60c5\u51b5\u4e0b\u76f4\u63a5\u8c03\u7528\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u9700\u8981\u63d2\u5165\u4e00\u6761\u65b0\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a $command-&gt;insert(‘user’, [ ‘username’ =&gt; ‘test’, ‘password’ =&gt; ‘testpass’, ’email’ =&gt; ‘test@test.com’, ]); \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u6bb5\u4ee3\u7801\u4f1a\u5411\u540d\u4e3a”user”\u7684\u8868\u4e2d\u63d2\u5165\u4e00\u6761\u8bb0\u5f55\uff0c\u5305\u62ec\u7528\u6237\u540d\u3001\u5bc6\u7801\u3001\u90ae\u7bb1\u7b49\u5b57\u6bb5\u3002Yii\u6846\u67b6\u4f1a\u81ea\u52a8\u5c06\u5b57\u6bb5\u540d\u548c\u5b57\u6bb5\u503c\u7ec4\u5408\u6210\u4e00\u6761INSERT\u8bed\u53e5\uff0c\u5e76\u6267\u884c\u8be5\u8bed\u53e5\u3002 \u9664\u4e86\u8fd9\u4e9b\u5e38\u89c1\u7684SQL\u64cd\u4f5c\u4e4b\u5916\uff0cDbCommand\u5bf9\u8c61\u8fd8\u5177\u6709\u4e00\u4e9b\u9ad8\u7ea7\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7bindParam()\u65b9\u6cd5\u6765\u7ed1\u5b9aSQL\u8bed\u53e5\u4e2d\u7684\u53c2\u6570\u3002\u8fd9\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u9884\u9632SQL\u6ce8\u5165\u653b\u51fb\uff0c\u4fdd\u8bc1SQL\u8bed\u53e5\u7684\u5b89\u5168\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5728SQL\u8bed\u53e5\u4e2d\u4f7f\u7528bindParam()\u65b9\u6cd5\u7684\u4f8b\u5b50\uff1a $command = $connection-&gt;createCommand(‘SELECT * FROM user WHERE status=:status’); $command-&gt;bindParam(‘:status’, $status); $users = $command-&gt;queryAll(); \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86”SELECT”\u8bed\u53e5\u67e5\u8be2\u4e86\u6240\u6709\u72b6\u6001\u4e3a$status\u7684\u7528\u6237\u3002\u4f7f\u7528bindParam()\u65b9\u6cd5\u53ef\u4ee5\u5c06$status\u53c2\u6570\u7ed1\u5b9a\u5230SQL\u8bed\u53e5\u4e2d\u7684:status\u5360\u4f4d\u7b26\u3002\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u81ea\u52a8\u8f6c\u4e49\u53c2\u6570\u503c\uff0c\u786e\u4fddSQL\u8bed\u53e5\u4e0d\u53d7\u5230\u6076\u610f\u653b\u51fb\u3002 \u6b64\u5916\uff0cDbCommand\u5bf9\u8c61\u8fd8\u652f\u6301\u4e8b\u52a1\u7684\u7ba1\u7406\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528beginTransaction()\u65b9\u6cd5\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1\uff0c\u4f7f\u7528commit()\u65b9\u6cd5\u63d0\u4ea4\u4e8b\u52a1\uff0c\u4f7f\u7528rollback()\u65b9\u6cd5\u56de\u6eda\u4e8b\u52a1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u4e8b\u52a1\u7684\u4f8b\u5b50\uff1a $transaction = $connection-&gt;beginTransaction(); try { $command1 = $connection-&gt;createCommand($sql1); […]<\/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-23968","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23968","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=23968"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23968\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}