{"id":22839,"date":"2024-11-21T14:11:21","date_gmt":"2024-11-21T06:11:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22839\/"},"modified":"2024-11-21T14:11:21","modified_gmt":"2024-11-21T06:11:21","slug":"laravel%e6%9f%a5%e8%af%a2%e6%8c%87%e5%ae%9a%e5%ad%97%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22839\/","title":{"rendered":"laravel\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5"},"content":{"rendered":"

laravel\u662f\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684php\u6846\u67b6\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u6784\u5efaweb\u5e94\u7528\u7a0b\u5e8f\u3002\u5176\u4e2d\uff0c\u6570\u636e\u5e93\u67e5\u8be2\u662f\u6846\u67b6\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u5728laravel\u4e2d\uff0c\u67e5\u8be2\u6570\u636e\u5e93\u53ef\u4ee5\u4f7f\u7528\u67e5\u8be2\u6784\u5efa\u5668\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528laravel\u67e5\u8be2\u6784\u5efa\u5668\u6765\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5\u3002<\/p>\n

    \n
  1. \u67e5\u8be2\u6240\u6709\u5b57\u6bb5<\/li>\n<\/ol>\n

    \u5728Laravel\u4e2d\uff0c\u5982\u679c\u6211\u4eec\u60f3\u67e5\u8be2\u4e00\u4e2a\u8868\u4e2d\u7684\u6240\u6709\u5b57\u6bb5\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\u6784\u5efa\u5668\u65b9\u6cd5\uff1a<\/p>\n

    $data = DB::table('table_name')-&gt;get();<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5176\u4e2d\uff0ctable_name\u662f\u8981\u67e5\u8be2\u7684\u8868\u540d\uff0cget()\u65b9\u6cd5\u8868\u793a\u8981\u83b7\u53d6\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u3002<\/p>\n
      \n
    1. \u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5<\/li>\n<\/ol>\n
      \u5982\u679c\u6211\u4eec\u53ea\u60f3\u67e5\u8be2\u8868\u4e2d\u7684\u7279\u5b9a\u5b57\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528select()\u65b9\u6cd5\u6765\u9009\u62e9\u9700\u8981\u7684\u5b57\u6bb5\u3002\u5177\u4f53\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
      $data = DB::table('table_name')\n            -&gt;select('field1', 'field2', ...)\n            -&gt;get();<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u5176\u4e2d\uff0cfield1\u3001field2\u7b49\u662f\u6211\u4eec\u60f3\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\u540d\uff0c\u591a\u4e2a\u5b57\u6bb5\u540d\u53ef\u4ee5\u4f7f\u7528\u9017\u53f7\u5206\u9694\u3002<\/p>\n
        \n
      1. \u67e5\u8be2\u591a\u4e2a\u8868\u4e2d\u7684\u6307\u5b9a\u5b57\u6bb5<\/li>\n<\/ol>\n
        \u5728Laravel\u4e2d\uff0c\u591a\u4e2a\u8868\u4e4b\u95f4\u53ef\u4ee5\u8fdb\u884c\u5173\u8054\u67e5\u8be2\u3002\u5982\u679c\u6211\u4eec\u60f3\u67e5\u8be2\u591a\u4e2a\u8868\u7684\u6307\u5b9a\u5b57\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528join()\u65b9\u6cd5\u6765\u8fdb\u884c\u5173\u8054\u67e5\u8be2\u3002\u5177\u4f53\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
        $data = DB::table('table1')\n            -&gt;leftJoin('table2', 'table1.id', '=', 'table2.table1_id')\n            -&gt;select('table1.field1', 'table2.field2', ...)\n            -&gt;get();<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \u5176\u4e2d\uff0ctable1\u548ctable2\u662f\u6211\u4eec\u8981\u67e5\u8be2\u7684\u4e24\u5f20\u8868\uff0cleftJoin()\u65b9\u6cd5\u8868\u793a\u4f7f\u7528\u5de6\u8fde\u63a5\u5173\u8054\u8fd9\u4e24\u4e2a\u8868\uff0ctable1.id\u548ctable2.table1_id\u662f\u5173\u8054\u6761\u4ef6\uff0cselect()\u65b9\u6cd5\u4f9d\u7136\u662f\u7528\u6765\u9009\u62e9\u9700\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\u3002<\/p>\n
          \n
        1. \u4f7f\u7528\u6a21\u578b\u7c7b\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5<\/li>\n<\/ol>\n
          \u9664\u4e86\u4f7f\u7528\u67e5\u8be2\u6784\u5efa\u5668\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528\u6a21\u578b\u7c7b\u6765\u67e5\u8be2\u6570\u636e\u3002\u9996\u5148\u8981\u521b\u5efa\u6a21\u578b\u7c7b\uff0c\u7136\u540e\u53ef\u4ee5\u4f7f\u7528select()\u65b9\u6cd5\u6765\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5\u3002\u5177\u4f53\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
          class MyModel extends Model\n{\n    protected $table = 'table_name';\n    protected $fillable = ['field1', 'field2', ...];\n}\n\n$data = MyModel::select('field1', 'field2', ...)\n               -&gt;get();<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \u5176\u4e2d\uff0cMyModel\u662f\u6211\u4eec\u521b\u5efa\u7684\u6a21\u578b\u7c7b\uff0ctable_name\u662f\u4e0e\u6a21\u578b\u5bf9\u5e94\u7684\u8868\u540d\uff0c$fillable\u662f\u53ef\u4ee5\u8fdb\u884c\u6279\u91cf\u8d4b\u503c\u7684\u5b57\u6bb5\u3002<\/p>\n
          \u603b\u7ed3<\/p>\n
          \u4ee5\u4e0a\u5c31\u662f\u4f7f\u7528Laravel\u67e5\u8be2\u6784\u5efa\u5668\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5\u7684\u65b9\u6cd5\u3002\u5bf9\u4e8e\u6570\u636e\u8868\u4e2d\u5b57\u6bb5\u8f83\u591a\u7684\u60c5\u51b5\uff0c\u6211\u4eec\u53ef\u4ee5\u53ea\u67e5\u8be2\u9700\u8981\u7684\u5b57\u6bb5\uff0c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u67e5\u8be2\u548c\u8d44\u6e90\u8017\u8d39\u3002\u4f7f\u7528\u6a21\u578b\u7c7b\u67e5\u8be2\u6570\u636e\u4e5f\u662f\u4e00\u79cd\u7b80\u5355\u9ad8\u6548\u7684\u67e5\u8be2\u65b9\u5f0f\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u60c5\u51b5\u9009\u62e9\u5408\u9002\u7684\u67e5\u8be2\u65b9\u6cd5\u3002<\/p>\n
          \u4ee5\u4e0a\u5c31\u662flaravel\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5\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":"
          laravel\u662f\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684php\u6846\u67b6\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u6784\u5efaweb\u5e94\u7528\u7a0b\u5e8f\u3002\u5176\u4e2d\uff0c\u6570\u636e\u5e93\u67e5\u8be2\u662f\u6846\u67b6\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u5728laravel\u4e2d\uff0c\u67e5\u8be2\u6570\u636e\u5e93\u53ef\u4ee5\u4f7f\u7528\u67e5\u8be2\u6784\u5efa\u5668\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528laravel\u67e5\u8be2\u6784\u5efa\u5668\u6765\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5\u3002 \u67e5\u8be2\u6240\u6709\u5b57\u6bb5 \u5728Laravel\u4e2d\uff0c\u5982\u679c\u6211\u4eec\u60f3\u67e5\u8be2\u4e00\u4e2a\u8868\u4e2d\u7684\u6240\u6709\u5b57\u6bb5\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\u6784\u5efa\u5668\u65b9\u6cd5\uff1a $data = DB::table(‘table_name’)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0ctable_name\u662f\u8981\u67e5\u8be2\u7684\u8868\u540d\uff0cget()\u65b9\u6cd5\u8868\u793a\u8981\u83b7\u53d6\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u3002 \u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5 \u5982\u679c\u6211\u4eec\u53ea\u60f3\u67e5\u8be2\u8868\u4e2d\u7684\u7279\u5b9a\u5b57\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528select()\u65b9\u6cd5\u6765\u9009\u62e9\u9700\u8981\u7684\u5b57\u6bb5\u3002\u5177\u4f53\u8bed\u6cd5\u5982\u4e0b\uff1a $data = DB::table(‘table_name’) -&gt;select(‘field1’, ‘field2’, …) -&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0cfield1\u3001field2\u7b49\u662f\u6211\u4eec\u60f3\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\u540d\uff0c\u591a\u4e2a\u5b57\u6bb5\u540d\u53ef\u4ee5\u4f7f\u7528\u9017\u53f7\u5206\u9694\u3002 \u67e5\u8be2\u591a\u4e2a\u8868\u4e2d\u7684\u6307\u5b9a\u5b57\u6bb5 \u5728Laravel\u4e2d\uff0c\u591a\u4e2a\u8868\u4e4b\u95f4\u53ef\u4ee5\u8fdb\u884c\u5173\u8054\u67e5\u8be2\u3002\u5982\u679c\u6211\u4eec\u60f3\u67e5\u8be2\u591a\u4e2a\u8868\u7684\u6307\u5b9a\u5b57\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528join()\u65b9\u6cd5\u6765\u8fdb\u884c\u5173\u8054\u67e5\u8be2\u3002\u5177\u4f53\u8bed\u6cd5\u5982\u4e0b\uff1a $data = DB::table(‘table1’) -&gt;leftJoin(‘table2’, ‘table1.id’, ‘=’, ‘table2.table1_id’) -&gt;select(‘table1.field1’, ‘table2.field2’, …) -&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0ctable1\u548ctable2\u662f\u6211\u4eec\u8981\u67e5\u8be2\u7684\u4e24\u5f20\u8868\uff0cleftJoin()\u65b9\u6cd5\u8868\u793a\u4f7f\u7528\u5de6\u8fde\u63a5\u5173\u8054\u8fd9\u4e24\u4e2a\u8868\uff0ctable1.id\u548ctable2.table1_id\u662f\u5173\u8054\u6761\u4ef6\uff0cselect()\u65b9\u6cd5\u4f9d\u7136\u662f\u7528\u6765\u9009\u62e9\u9700\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\u3002 \u4f7f\u7528\u6a21\u578b\u7c7b\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5 \u9664\u4e86\u4f7f\u7528\u67e5\u8be2\u6784\u5efa\u5668\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528\u6a21\u578b\u7c7b\u6765\u67e5\u8be2\u6570\u636e\u3002\u9996\u5148\u8981\u521b\u5efa\u6a21\u578b\u7c7b\uff0c\u7136\u540e\u53ef\u4ee5\u4f7f\u7528select()\u65b9\u6cd5\u6765\u67e5\u8be2\u6307\u5b9a\u5b57\u6bb5\u3002\u5177\u4f53\u8bed\u6cd5\u5982\u4e0b\uff1a class MyModel extends Model { protected $table = ‘table_name’; protected $fillable = [‘field1’, ‘field2’, …]; } $data = MyModel::select(‘field1’, […]<\/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-22839","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22839","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=22839"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22839\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22839"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22839"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}