{"id":22742,"date":"2024-11-21T14:00:56","date_gmt":"2024-11-21T06:00:56","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22742\/"},"modified":"2024-11-21T14:00:56","modified_gmt":"2024-11-21T06:00:56","slug":"thinkphp5%e5%88%a4%e6%96%ad%e8%a1%a8%e5%ad%97%e6%ae%b5%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22742\/","title":{"rendered":"thinkphp5\u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728"},"content":{"rendered":"

\u968f\u7740\u4e92\u8054\u7f51\u7684\u53d1\u5c55\uff0cweb\u5f00\u53d1\u53d8\u5f97\u8d8a\u6765\u8d8a\u91cd\u8981\u3002\u7531\u4e8eweb\u5e94\u7528\u7a0b\u5e8f\u7684\u590d\u6742\u6027\uff0cweb\u5f00\u53d1\u7684\u96be\u5ea6\u548c\u98ce\u9669\u4e5f\u5728\u589e\u52a0\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u6709\u8bb8\u591aweb\u6846\u67b6\u88ab\u5f00\u53d1\u51fa\u6765\u3002\u800cthinkphp\u662f\u5176\u4e2d\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684web\u6846\u67b6\u3002\u5728\u4f7f\u7528thinkphp\u8fdb\u884cweb\u5f00\u53d1\u65f6\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5224\u65ad\u6570\u636e\u5e93\u8868\u4e2d\u7684\u67d0\u4e9b\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4f7f\u7528thinkphp5\u6765\u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u3002<\/p>\n

    \n
  1. \u6570\u636e\u5e93\u64cd\u4f5c\u7c7b<\/li>\n<\/ol>\n

    ThinkPHP5\u63d0\u4f9b\u4e86\u4e00\u79cd\u975e\u5e38\u65b9\u4fbf\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u7c7b\u2014\u2014Db\u7c7b\u3002\u901a\u8fc7\u4f7f\u7528Db\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u5e93\u7684CRUD\u64cd\u4f5c\u3002\u5728\u4f7f\u7528Db\u7c7b\u65f6\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u5148\u8fde\u63a5\u6570\u636e\u5e93\u3002\u8fde\u63a5\u6570\u636e\u5e93\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n

    use thinkDb;\nDb::connect($config);<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5176\u4e2d\uff0c$config\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u5305\u542b\u6570\u636e\u5e93\u7684\u5404\u79cd\u914d\u7f6e\u4fe1\u606f\uff0c\u4f8b\u5982\uff1a<\/p>\n
    $config = [\n    'type' =&gt; 'mysql',\n    'hostname' =&gt; 'localhost',\n    'database' =&gt; 'test',\n    'username' =&gt; 'root',\n    'password' =&gt; 'password',\n    'hostport' =&gt; '3306',\n    'charset' =&gt; 'utf8mb4',\n    'prefix' =&gt; '',\n    'debug' =&gt; true,\n];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8fde\u63a5\u6210\u529f\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Db\u7c7b\u7684\u5404\u79cd\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u636e\u5e93\uff0c\u4f8b\u5982\u67e5\u8be2\uff1a<\/p>\n
    $result = Db::name('user')-&gt;where('id', 1)-&gt;find();<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \n
    1. \u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728<\/li>\n<\/ol>\n
      \u4e3a\u4e86\u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728\uff0c\u6211\u4eec\u9700\u8981\u67e5\u8be2\u8868\u7684\u7ed3\u6784\u4fe1\u606f\u3002\u5728MySQL\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528DESC\u547d\u4ee4\uff08\u6216SHOW COLUMNS\u547d\u4ee4\uff09\u6765\u83b7\u53d6\u8868\u7684\u7ed3\u6784\u4fe1\u606f\u3002\u5728ThinkPHP5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Db\u7c7b\u7684getTableFields\u65b9\u6cd5\u6765\u83b7\u53d6\u8868\u7684\u5b57\u6bb5\u4fe1\u606f\uff1a<\/p>\n
      \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
      $fields = Db::name('user')-&gt;getTableFields();<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      getTableFields\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\uff0c\u5305\u542b\u4e86\u8868\u4e2d\u7684\u6240\u6709\u5b57\u6bb5\u540d\u3002\u6211\u4eec\u53ef\u4ee5\u5728\u8fd9\u4e2a\u6570\u7ec4\u4e2d\u67e5\u627e\u9700\u8981\u7684\u5b57\u6bb5\u540d\u3002<\/p>\n
      $fields = Db::name('user')-&gt;getTableFields();\nif (in_array($field, $fields)) {\n    \/\/ \u5b57\u6bb5\u5b58\u5728\n} else {\n    \/\/ \u5b57\u6bb5\u4e0d\u5b58\u5728\n}<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u5176\u4e2d\uff0c$field\u662f\u9700\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\u540d\u3002<\/p>\n
        \n
      1. \u5b8c\u6574\u7684\u4ee3\u7801\u793a\u4f8b<\/li>\n<\/ol>\n
        \u4e0b\u9762\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u7528\u4e8e\u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728\uff1a<\/p>\n
        use thinkDb;\n\nfunction fieldExists($table, $field) {\n    $fields = Db::name($table)-&gt;getTableFields();\n    return in_array($field, $fields);\n}\n\nif (fieldExists('user', 'name')) {\n    echo '\u5b57\u6bb5\u5b58\u5728';\n} else {\n    echo '\u5b57\u6bb5\u4e0d\u5b58\u5728';\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
          \n
        1. \u603b\u7ed3<\/li>\n<\/ol>\n
          \u5728\u4f7f\u7528ThinkPHP5\u8fdb\u884cWeb\u5f00\u53d1\u65f6\uff0c\u7ecf\u5e38\u9700\u8981\u5224\u65ad\u6570\u636e\u5e93\u8868\u4e2d\u7684\u67d0\u4e9b\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Db\u7c7b\u7684getTableFields\u65b9\u6cd5\u6765\u83b7\u53d6\u8868\u7684\u5b57\u6bb5\u4fe1\u606f\uff0c\u7136\u540e\u67e5\u8be2\u9700\u8981\u7684\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u3002\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728\uff0c\u907f\u514d\u4e86\u5728\u67e5\u8be2\u8868\u6570\u636e\u65f6\u53ef\u80fd\u51fa\u73b0\u7684\u9519\u8bef\u3002<\/p>\n
          \u4ee5\u4e0a\u5c31\u662fthinkphp5\u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728\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":"
          \u968f\u7740\u4e92\u8054\u7f51\u7684\u53d1\u5c55\uff0cweb\u5f00\u53d1\u53d8\u5f97\u8d8a\u6765\u8d8a\u91cd\u8981\u3002\u7531\u4e8eweb\u5e94\u7528\u7a0b\u5e8f\u7684\u590d\u6742\u6027\uff0cweb\u5f00\u53d1\u7684\u96be\u5ea6\u548c\u98ce\u9669\u4e5f\u5728\u589e\u52a0\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u6709\u8bb8\u591aweb\u6846\u67b6\u88ab\u5f00\u53d1\u51fa\u6765\u3002\u800cthinkphp\u662f\u5176\u4e2d\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684web\u6846\u67b6\u3002\u5728\u4f7f\u7528thinkphp\u8fdb\u884cweb\u5f00\u53d1\u65f6\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5224\u65ad\u6570\u636e\u5e93\u8868\u4e2d\u7684\u67d0\u4e9b\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4f7f\u7528thinkphp5\u6765\u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u3002 \u6570\u636e\u5e93\u64cd\u4f5c\u7c7b ThinkPHP5\u63d0\u4f9b\u4e86\u4e00\u79cd\u975e\u5e38\u65b9\u4fbf\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u7c7b\u2014\u2014Db\u7c7b\u3002\u901a\u8fc7\u4f7f\u7528Db\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u5e93\u7684CRUD\u64cd\u4f5c\u3002\u5728\u4f7f\u7528Db\u7c7b\u65f6\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u5148\u8fde\u63a5\u6570\u636e\u5e93\u3002\u8fde\u63a5\u6570\u636e\u5e93\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a use thinkDb; Db::connect($config); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c$config\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u5305\u542b\u6570\u636e\u5e93\u7684\u5404\u79cd\u914d\u7f6e\u4fe1\u606f\uff0c\u4f8b\u5982\uff1a $config = [ ‘type’ =&gt; ‘mysql’, ‘hostname’ =&gt; ‘localhost’, ‘database’ =&gt; ‘test’, ‘username’ =&gt; ‘root’, ‘password’ =&gt; ‘password’, ‘hostport’ =&gt; ‘3306’, ‘charset’ =&gt; ‘utf8mb4’, ‘prefix’ =&gt; ”, ‘debug’ =&gt; true, ]; \u767b\u5f55\u540e\u590d\u5236 \u8fde\u63a5\u6210\u529f\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Db\u7c7b\u7684\u5404\u79cd\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u636e\u5e93\uff0c\u4f8b\u5982\u67e5\u8be2\uff1a $result = Db::name(‘user’)-&gt;where(‘id’, 1)-&gt;find(); \u767b\u5f55\u540e\u590d\u5236 \u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728 \u4e3a\u4e86\u5224\u65ad\u8868\u5b57\u6bb5\u662f\u5426\u5b58\u5728\uff0c\u6211\u4eec\u9700\u8981\u67e5\u8be2\u8868\u7684\u7ed3\u6784\u4fe1\u606f\u3002\u5728MySQL\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528DESC\u547d\u4ee4\uff08\u6216SHOW COLUMNS\u547d\u4ee4\uff09\u6765\u83b7\u53d6\u8868\u7684\u7ed3\u6784\u4fe1\u606f\u3002\u5728ThinkPHP5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Db\u7c7b\u7684getTableFields\u65b9\u6cd5\u6765\u83b7\u53d6\u8868\u7684\u5b57\u6bb5\u4fe1\u606f\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b $fields = Db::name(‘user’)-&gt;getTableFields(); \u767b\u5f55\u540e\u590d\u5236 getTableFields\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\uff0c\u5305\u542b\u4e86\u8868\u4e2d\u7684\u6240\u6709\u5b57\u6bb5\u540d\u3002\u6211\u4eec\u53ef\u4ee5\u5728\u8fd9\u4e2a\u6570\u7ec4\u4e2d\u67e5\u627e\u9700\u8981\u7684\u5b57\u6bb5\u540d\u3002 […]<\/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-22742","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22742","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=22742"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22742\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}