{"id":23605,"date":"2024-11-21T16:27:20","date_gmt":"2024-11-21T08:27:20","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23605\/"},"modified":"2024-11-21T16:27:20","modified_gmt":"2024-11-21T08:27:20","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8thinkphp6%e5%ae%9e%e7%8e%b0%e6%95%b0%e6%8d%ae%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23605\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528ThinkPHP6\u5b9e\u73b0\u6570\u636e\u5206\u6790"},"content":{"rendered":"

\u968f\u7740\u4e92\u8054\u7f51\u7684\u53d1\u5c55\uff0c\u6570\u636e\u5206\u6790\u6210\u4e3a\u4e86\u4f01\u4e1a\u548c\u4e2a\u4eba\u5fc5\u987b\u5173\u6ce8\u7684\u4e00\u4e2a\u95ee\u9898\u3002\u5229\u7528\u6570\u636e\u5206\u6790\u5de5\u5177\u53ef\u4ee5\u5feb\u901f\u6709\u6548\u5730\u8fdb\u884c\u6570\u636e\u5904\u7406\u548c\u5206\u6790\uff0c\u66f4\u597d\u5730\u4e86\u89e3\u6570\u636e\u80cc\u540e\u7684\u89c4\u5f8b\uff0c\u4ece\u800c\u63d0\u5347\u51b3\u7b56\u7684\u51c6\u786e\u6027\u548c\u6548\u7387\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u75286\u5b9e\u73b0\u6570\u636e\u5206\u6790\u3002 <\/p>\n

\u4e00\u3001\u6570\u636e\u5b58\u50a8<\/p>\n

\u5728\u6570\u636e\u5206\u6790\u4e4b\u524d\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u5c06\u6570\u636e\u5b58\u50a8\u5230\u6570\u636e\u5e93\u4e2d\u3002ThinkPHP6\u652f\u6301\u591a\u79cd\u6570\u636e\u5e93\uff0c\u5982MySQL\u3001SQLite\u3001PostgreSQL\u3001Oracle\u7b49\u3002\u8fd9\u91cc\u4ee5MySQL\u4e3a\u4f8b\u3002<\/p>\n

1.\u5728config\/database.php\u6587\u4ef6\u4e2d\u914d\u7f6e\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\uff1a<\/p>\n

\/\/ MySQL\u6570\u636e\u5e93\u914d\u7f6e\u4fe1\u606f\n'database' =&gt; [\n    \/\/ \u6570\u636e\u5e93\u7c7b\u578b\n    'type'            =&gt; 'mysql',\n    \/\/ \u6570\u636e\u5e93\u8fde\u63a5DSN\u914d\u7f6e\n    'dsn'             =&gt; '',\n    \/\/ \u670d\u52a1\u5668\u5730\u5740\n    'hostname'        =&gt; 'localhost',\n    \/\/ \u6570\u636e\u5e93\u540d\n    'database'        =&gt; 'database_name',\n    \/\/ \u6570\u636e\u5e93\u7528\u6237\u540d\n    'username'        =&gt; 'root',\n    \/\/ \u6570\u636e\u5e93\u5bc6\u7801\n    'password'        =&gt; '',\n    \/\/ \u6570\u636e\u5e93\u8fde\u63a5\u7aef\u53e3\n    'hostport'        =&gt; '3306',\n    \/\/ \u6570\u636e\u5e93\u8fde\u63a5\u53c2\u6570\n    'params'          =&gt; [],\n    \/\/ \u6570\u636e\u5e93\u7f16\u7801\u9ed8\u8ba4\u91c7\u7528utf8mb4\n    'charset'         =&gt; 'utf8mb4',\n    \/\/ \u6570\u636e\u5e93\u8868\u524d\u7f00\n    'prefix'          =&gt; '',\n    \/\/ \u6570\u636e\u5e93\u8c03\u8bd5\u6a21\u5f0f\n    'debug'           =&gt; true,\n    \/\/ \u6570\u636e\u5e93\u90e8\u7f72\u65b9\u5f0f:0 \u96c6\u4e2d\u5f0f(\u5355\u4e00\u670d\u52a1\u5668),1 \u5206\u5e03\u5f0f(\u4e3b\u4ece\u670d\u52a1\u5668)\n    'deploy'          =&gt; 0,\n    \/\/ \u6570\u636e\u5e93\u8bfb\u5199\u662f\u5426\u5206\u79bb \u4e3b\u4ece\u5f0f\u6709\u6548\n    'rw_separate'     =&gt; false,\n    \/\/ \u8bfb\u5199\u5206\u79bb\u540e \u4e3b\u670d\u52a1\u5668\u6570\u91cf\n    'master_num'      =&gt; 1,\n    \/\/ \u6307\u5b9a\u4ece\u670d\u52a1\u5668\u5e8f\u53f7\n    'slave_no'        =&gt; '',\n    \/\/ \u662f\u5426\u4e25\u683c\u68c0\u67e5\u5b57\u6bb5\u662f\u5426\u5b58\u5728\n    'fields_strict'   =&gt; true,\n    \/\/ \u6570\u636e\u96c6\u8fd4\u56de\u7c7b\u578b\n    'resultset_type'  =&gt; 'array',\n    \/\/ \u81ea\u52a8\u5199\u5165\u65f6\u95f4\u6233\u5b57\u6bb5\n    'auto_timestamp'  =&gt; false,\n    \/\/ \u65f6\u95f4\u5b57\u6bb5\u53d6\u51fa\u540e\u7684\u9ed8\u8ba4\u65f6\u95f4\u683c\u5f0f\n    'datetime_format' =&gt; 'Y-m-d H:i:s',\n    \/\/ \u662f\u5426\u9700\u8981\u8fdb\u884cSQL\u6027\u80fd\u5206\u6790\n    'sql_explain'     =&gt; false,\n],<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2.\u5728\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u6570\u636e\u8868<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u5728MySQL\u4e2d\u521b\u5efa\u4e00\u4e2a\u540d\u4e3astudent\u7684\u8868\uff0c\u5e76\u63d2\u5165\u4e00\u4e9b\u6d4b\u8bd5\u6570\u636e\uff1a<\/p>\n
CREATE TABLE `student` (\n  `id` int(11) NOT NULL AUTO_INCREMENT,\n  `name` varchar(20) NOT NULL,\n  `age` int(11) NOT NULL,\n  `sex` enum('male','female') NOT NULL,\n  `score` decimal(5,2) NOT NULL,\n  PRIMARY KEY (`id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;\n\nINSERT INTO `student` (`id`, `name`, `age`, `sex`, `score`)\nVALUES\n    (1, '\u5c0f\u660e', 18, 'male', 89.5),\n    (2, '\u5c0f\u7ea2', 19, 'female', 95),\n    (3, '\u5c0f\u4eae', 20, 'male', 82.5),\n    (4, '\u5c0f\u82b1', 18, 'female', 88.5);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e8c\u3001\u6570\u636e\u5206\u6790<\/p>\n
\u6709\u4e86\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528ThinkPHP6\u63d0\u4f9b\u7684\u67e5\u8be2\u6784\u5efa\u5668\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\u548c\u5206\u6790\u3002<\/p>\n
1.\u83b7\u53d6\u6570\u636e<\/p>\n
\u9996\u5148\u9700\u8981\u5728\u63a7\u5236\u5668\u4e2d\u5f15\u5165Model\u7c7b\uff0c\u5e76\u5b9a\u4e49\u4e00\u4e2a\u65b9\u6cd5\u83b7\u53d6student\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\uff1a<\/p>\n
<?php namespace appindexcontroller;\n\nuse appindexmodelStudent;\nuse thinkController;\n\nclass Index extends Controller\n{\n    public function index()\n    {\n        $student = new Student();\n        $data = $student->select();\n        dump($data);\n    }\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7new\u64cd\u4f5c\u7b26\u65b0\u5efa\u4e86\u4e00\u4e2aStudent\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528select\u65b9\u6cd5\u83b7\u53d6\u4e86student\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u3002\u6700\u540e\u4f7f\u7528dump\u65b9\u6cd5\u5c06\u7ed3\u679c\u8f93\u51fa\u5230\u9875\u9762\u4e0a\uff0c\u65b9\u4fbf\u8c03\u8bd5\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u6211\u4eec\u5728\u63a7\u5236\u5668\u4e2d\u4f7f\u7528\u4e86\u6a21\u578b\u7c7bStudent\uff0c\u5e76\u6ca1\u6709\u624b\u52a8\u7f16\u5199student\u8868\u7684SQL\u8bed\u53e5\uff0c\u8fd9\u662f\u56e0\u4e3aThinkPHP6\u5df2\u7ecf\u63d0\u4f9b\u4e86\u6570\u636e\u5e93\u8fc1\u79fb\u5de5\u5177\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u521b\u5efa\u548c\u4fee\u6539\u6570\u636e\u8868\u683c\u3002 <\/p>\n
2.\u5206\u7ec4\u6c47\u603b\u6570\u636e<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5e38\u5e38\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u5e76\u8fdb\u884c\u6c47\u603b\u663e\u793a\uff0c\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528\u67e5\u8be2\u6784\u5efa\u5668\u63d0\u4f9b\u7684group\u548csum\u65b9\u6cd5\u3002<\/p>\n
group\u65b9\u6cd5\u7528\u4e8e\u5c06\u6570\u636e\u6309\u7167\u7279\u5b9a\u7684\u5b57\u6bb5\u5206\u7ec4\uff0c\u5982\u5c06\u4e0a\u8ff0student\u8868\u6309\u7167\u5e74\u9f84\u8fdb\u884c\u5206\u7ec4\uff1a<\/p>\n
public function index()\n{\n    $student = new Student();\n    $data = $student-&gt;group('age')-&gt;select();\n    dump($data);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
sum\u65b9\u6cd5\u7528\u4e8e\u5bf9\u6307\u5b9a\u5b57\u6bb5\u8fdb\u884c\u6c42\u548c\uff0c\u5982\u8ba1\u7b97\u4e0a\u8ff0student\u8868\u4e2d\u6240\u6709\u5b66\u751f\u7684\u603b\u5206\u6570\uff1a<\/p>\n
public function index()\n{\n    $student = new Student();\n    $score = $student-&gt;sum('score');\n    dump($score);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3.\u6761\u4ef6\u67e5\u8be2\u6570\u636e<\/p>\n
\u6839\u636e\u5b9e\u9645\u9700\u6c42\uff0c\u6211\u4eec\u9700\u8981\u5728\u6570\u636e\u5206\u6790\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u6761\u4ef6\u7b5b\u9009\uff0c\u53ef\u4ee5\u4f7f\u7528WHERE\u5b50\u53e5\u6765\u8fc7\u6ee4\u6570\u636e\u3002<\/p>\n
\u4f8b\u5982\uff0c\u6211\u4eec\u53ea\u9700\u8981\u67e5\u8be2student\u8868\u4e2d\u5e74\u9f84\u5927\u4e8e\u7b49\u4e8e18\u5c81\u7684\u5b66\u751f\uff0c\u53ef\u4ee5\u4f7f\u7528where\u65b9\u6cd5\uff1a<\/p>\n
public function index()\n{\n    $student = new Student();\n    $data = $student-&gt;where('age', '&gt;=', 18)-&gt;select();\n    dump($data);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u662f\uff0c\u7531\u4e8eThinkPHP6\u91c7\u7528\u4e86PDO\u9884\u5904\u7406\u673a\u5236\uff0c\u56e0\u6b64\u5728\u4f7f\u7528WHERE\u5b50\u53e5\u65f6\uff0c\u5fc5\u987b\u4f7f\u7528\u53c2\u6570\u7ed1\u5b9a\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u5b58\u5728SQL\u6ce8\u5165\u98ce\u9669\u3002<\/p>\n
4.\u6392\u5e8f\u6570\u636e<\/p>\n
\u5728\u5927\u91cf\u6570\u636e\u7684\u60c5\u51b5\u4e0b\uff0c\u7528\u6237\u7ecf\u5e38\u9700\u8981\u6309\u7167\u7279\u5b9a\u7684\u89c4\u5219\u5bf9\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528order\u548climit\u65b9\u6cd5\u3002<\/p>\n
\u4f8b\u5982\uff0c\u6211\u4eec\u5e0c\u671b\u6309\u7167\u5b66\u751f\u5206\u6570\u4ece\u9ad8\u5230\u4f4e\u7684\u987a\u5e8f\u5bf9student\u8868\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff1a<\/p>\n
public function index()\n{\n    $student = new Student();\n    $data = $student-&gt;order('score', 'DESC')-&gt;select();\n    dump($data);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u540c\u65f6\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528limit\u65b9\u6cd5\u9650\u5236\u8fd4\u56de\u7684\u6570\u636e\u6761\u6570\uff1a<\/p>\n
public function index()\n{\n    $student = new Student();\n    $data = $student-&gt;order('score', 'DESC')-&gt;limit(2)-&gt;select();\n    dump($data);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e09\u3001\u603b\u7ed3<\/p>\n
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\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528ThinkPHP6\u5b9e\u73b0\u6570\u636e\u5206\u6790\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":"
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