laravel\u662f\u4e00\u4e2a\u6d41\u884c\u7684php web\u6846\u67b6\uff0c\u56e0\u5176\u4f18\u96c5\u7684\u8bed\u6cd5\u3001\u65b9\u4fbf\u7684\u5f00\u53d1\u548c\u9ad8\u6548\u7684\u6027\u80fd\u800c\u5907\u53d7\u5f00\u53d1\u8005\u7684\u9752\u7750\u3002\u5728laravel\u5f00\u53d1\u4e2d\uff0c\u6570\u636e\u5e93\u64cd\u4f5c\u5c24\u4e3a\u91cd\u8981\u3002laravel\u63d0\u4f9b\u4e86\u4e00\u4e2adb\u7c7b\uff0c\u7528\u4e8e\u64cd\u4f5c\u6570\u636e\u5e93\uff0c\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdlaravel db\u7c7b\u7684\u4f7f\u7528\u3002<\/p>\n
\u5728Laravel\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7DB\u7c7b\u8f7b\u677e\u5730\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u3002\u5728\u4f7f\u7528DB\u7c7b\u4e4b\u524d\uff0c\u9700\u8981\u5728\u63a7\u5236\u5668\u4e2d\u5f15\u5165\u547d\u540d\u7a7a\u95f4\uff1a<\/p>\n
use IlluminateSupportFacadesDB;<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u901a\u8fc7DB\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u8fdb\u884c\u67e5\u8be2\u3001\u63d2\u5165\u3001\u66f4\u65b0\u3001\u5220\u9664\u7b49\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u6570\u636e\u5e93\u67e5\u8be2\u7684\u793a\u4f8b\uff1a<\/p>\n
$users = DB::table('users')->get();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u662f\u4eceusers\u8868\u4e2d\u83b7\u53d6\u6240\u6709\u7528\u6237\u7684\u8bb0\u5f55\u3002\u5982\u679c\u8981\u83b7\u53d6\u5355\u6761\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
$user = DB::table('users')->where('name', 'John')->first();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c06\u4eceusers\u8868\u4e2d\u83b7\u53d6\u7b2c\u4e00\u6761name\u4e3aJohn\u7684\u8bb0\u5f55\u3002<\/p>\n
\n
- DB\u7c7b\u7684\u67e5\u8be2\u6784\u9020\u5668<\/li>\n<\/ol>\n
DB\u7c7b\u7684\u5173\u952e\u662f\u67e5\u8be2\u6784\u9020\u5668\u3002\u67e5\u8be2\u6784\u9020\u5668\u53ef\u4ee5\u901a\u8fc7\u94fe\u5f0f\u65b9\u6cd5\u6784\u5efa\u67e5\u8be2\uff0c\u975e\u5e38\u7075\u6d3b\u65b9\u4fbf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n
a. where\u6761\u4ef6\u67e5\u8be2<\/p>\n
$users = DB::table('users')->where('name', '=', 'John')->get();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u4eceusers\u8868\u4e2d\u67e5\u8be2name\u7b49\u4e8e’John’\u7684\u8bb0\u5f55\u3002\u53ef\u4ee5\u901a\u8fc7\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6765\u6307\u5b9a\u6761\u4ef6\u7c7b\u578b\uff0c\u5982’>’\u3001’=’\u3001’<\/p>\n
b. orWhere\u6761\u4ef6\u67e5\u8be2<\/p>\n
$users = DB::table('users')->where('name', '=', 'John')->orWhere('name', '=', 'Mary')->get();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u662f\u4eceusers\u8868\u4e2d\u67e5\u8be2name\u7b49\u4e8e’John’\u6216’name’\u7b49\u4e8e’Mary’\u7684\u8bb0\u5f55\u3002<\/p>\n
c. \u591a\u4e2aWhere\u6761\u4ef6\u67e5\u8be2<\/p>\n
$users = DB::table('users')->where([\n ['status', '=', '1'],\n ['name', '', 'John']\n])->get();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u662f\u4eceusers\u8868\u4e2d\u67e5\u8be2status\u7b49\u4e8e1\u800c\u4e14name\u4e0d\u7b49\u4e8eJohn\u7684\u8bb0\u5f55\u3002<\/p>\n
d. whereBetween\u6761\u4ef6\u67e5\u8be2<\/p>\n
$users = DB::table('users')->whereBetween('votes', [1, 100])->get();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u662f\u4eceusers\u8868\u4e2d\u67e5\u8be2votes\u57281-100\u4e4b\u95f4\u7684\u8bb0\u5f55\u3002<\/p>\n
e. whereIn\u6761\u4ef6\u67e5\u8be2<\/p>\n
$users = DB::table('users')->whereIn('id', [1, 2, 3])->get();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u662f\u4eceusers\u8868\u4e2d\u67e5\u8be2id\u57281\u30012\u30013\u4e2d\u7684\u8bb0\u5f55\u3002<\/p>\n
f. orderBy\u6392\u5e8f\u67e5\u8be2<\/p>\n
$users = DB::table('users')->orderBy('name', 'desc')->get();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u662f\u6309\u7167name\u5012\u5e8f\u6392\u5217\u67e5\u8be2users\u8868\u4e2d\u7684\u8bb0\u5f55\u3002<\/p>\n
\n
- DB\u7c7b\u7684\u63d2\u5165\u3001\u66f4\u65b0\u3001\u5220\u9664\u64cd\u4f5c<\/li>\n<\/ol>\n
Laravel DB\u7c7b\u4e0d\u4ec5\u652f\u6301\u67e5\u8be2\u64cd\u4f5c\uff0c\u8fd8\u652f\u6301\u63d2\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n
a. \u6570\u636e\u63d2\u5165<\/p>\n
DB::table('users')->insert([\n 'email' => 'john@example.com',\n 'name' => 'John Doe'\n]);<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u5411users\u8868\u4e2d\u63d2\u5165\u4e00\u6761email\u4e3ajohn@example.com\uff0cname\u4e3aJohn Doe\u7684\u8bb0\u5f55\u3002<\/p>\n
b. \u6570\u636e\u66f4\u65b0<\/p>\n
DB::table('users')->where('id', 1)->update(['votes' => 1]);<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u66f4\u65b0\u4e86id\u4e3a1\u7684\u7528\u6237\u7684\u6295\u7968\u6570\u4e3a1\u3002<\/p>\n
c. \u6570\u636e\u5220\u9664<\/p>\n
DB::table('users')->where('votes', 'delete();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u5220\u9664votes\u5c0f\u4e8e100\u7684\u6240\u6709\u7528\u6237\u3002<\/p>\n
\n
- DB\u7c7b\u7684\u4e8b\u52a1\u64cd\u4f5c<\/li>\n<\/ol>\n
\u6570\u636e\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\uff0c\u5f88\u53ef\u80fd\u4f1a\u53d1\u751f\u610f\u5916\uff0c\u6bd4\u5982\u5728\u63d2\u5165\u6570\u636e\u65f6\u51fa\u73b0\u9519\u8bef\u3002\u8fd9\u65f6\u5019\u5c31\u9700\u8981\u56de\u6eda\u4e8b\u52a1\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u3002Laravel DB\u7c7b\u652f\u6301\u4e8b\u52a1\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n
DB::transaction(function () {\n DB::table('users')->update(['votes' => 1]);\n DB::table('posts')->delete();\n});<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4e8b\u52a1\uff0c\u5b83\u66f4\u65b0users\u8868\u4e2d\u7684\u6240\u6709\u7528\u6237\u7684\u6295\u7968\u6570\u4e3a1\uff0c\u5e76\u5220\u9664posts\u8868\u4e2d\u7684\u6240\u6709\u8bb0\u5f55\u3002\u5982\u679c\u5728\u4e8b\u52a1\u8fc7\u7a0b\u4e2d\u53d1\u751f\u9519\u8bef\uff0c\u5219\u4f1a\u81ea\u52a8\u56de\u6eda\u5e76\u4fdd\u6301\u6570\u636e\u7684\u5b8c\u6574\u6027\u3002<\/p>\n
\n
- DB\u7c7b\u7684\u8fde\u63a5\u548c\u8868\u540d<\/li>\n<\/ol>\n
\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0cLaravel DB\u7c7b\u4f1a\u81ea\u52a8\u8fde\u63a5\u9ed8\u8ba4\u7684\u6570\u636e\u5e93\u548c\u8868\uff0c\u4f46\u662f\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u624b\u52a8\u6307\u5b9a\u8fde\u63a5\u548c\u8868\u540d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n
$users = DB::connection('connection-1')->table('users')->get();<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u793a\u4f8b\u662f\u5728\u7b2c\u4e00\u4e2a\u8fde\u63a5\u4e2d\u663e\u793a\u83b7\u53d6users\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u3002\u6211\u4eec\u53ef\u4ee5\u5728config\/database.php\u6587\u4ef6\u4e2d\u914d\u7f6e\u591a\u4e2a\u8fde\u63a5\u4fe1\u606f\u3002<\/p>\n
\n
- \u7ed3\u8bba<\/li>\n<\/ol>\n
\u901a\u8fc7Laravel DB\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u3002\u4ece\u7b80\u5355\u7684\u6570\u636e\u67e5\u8be2\u5230\u590d\u6742\u7684\u4e8b\u52a1\u64cd\u4f5c\uff0cLaravel DB\u7c7b\u90fd\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u65b9\u6cd5\u548c\u8bed\u6cd5\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u9700\u8981\u7ed3\u5408\u4f7f\u7528\u67e5\u8be2\u6784\u9020\u5668\u3001\u4e8b\u52a1\u548c\u8fde\u63a5\uff0c\u4ee5\u5b9e\u73b0\u7075\u6d3b\u9ad8\u6548\u7684\u6570\u636e\u64cd\u4f5c\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662flaravel db\u7c7b\u600e\u4e48\u7528\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\u6d41\u884c\u7684php web\u6846\u67b6\uff0c\u56e0\u5176\u4f18\u96c5\u7684\u8bed\u6cd5\u3001\u65b9\u4fbf\u7684\u5f00\u53d1\u548c\u9ad8\u6548\u7684\u6027\u80fd\u800c\u5907\u53d7\u5f00\u53d1\u8005\u7684\u9752\u7750\u3002\u5728laravel\u5f00\u53d1\u4e2d\uff0c\u6570\u636e\u5e93\u64cd\u4f5c\u5c24\u4e3a\u91cd\u8981\u3002laravel\u63d0\u4f9b\u4e86\u4e00\u4e2adb\u7c7b\uff0c\u7528\u4e8e\u64cd\u4f5c\u6570\u636e\u5e93\uff0c\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdlaravel db\u7c7b\u7684\u4f7f\u7528\u3002 DB\u7c7b\u7684\u57fa\u672c\u7528\u6cd5 \u5728Laravel\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7DB\u7c7b\u8f7b\u677e\u5730\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u3002\u5728\u4f7f\u7528DB\u7c7b\u4e4b\u524d\uff0c\u9700\u8981\u5728\u63a7\u5236\u5668\u4e2d\u5f15\u5165\u547d\u540d\u7a7a\u95f4\uff1a use IlluminateSupportFacadesDB; \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7DB\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u8fdb\u884c\u67e5\u8be2\u3001\u63d2\u5165\u3001\u66f4\u65b0\u3001\u5220\u9664\u7b49\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u6570\u636e\u5e93\u67e5\u8be2\u7684\u793a\u4f8b\uff1a $users = DB::table(‘users’)->get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u793a\u4f8b\u662f\u4eceusers\u8868\u4e2d\u83b7\u53d6\u6240\u6709\u7528\u6237\u7684\u8bb0\u5f55\u3002\u5982\u679c\u8981\u83b7\u53d6\u5355\u6761\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a $user = DB::table(‘users’)->where(‘name’, ‘John’)->first(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u5c06\u4eceusers\u8868\u4e2d\u83b7\u53d6\u7b2c\u4e00\u6761name\u4e3aJohn\u7684\u8bb0\u5f55\u3002 DB\u7c7b\u7684\u67e5\u8be2\u6784\u9020\u5668 DB\u7c7b\u7684\u5173\u952e\u662f\u67e5\u8be2\u6784\u9020\u5668\u3002\u67e5\u8be2\u6784\u9020\u5668\u53ef\u4ee5\u901a\u8fc7\u94fe\u5f0f\u65b9\u6cd5\u6784\u5efa\u67e5\u8be2\uff0c\u975e\u5e38\u7075\u6d3b\u65b9\u4fbf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff1a a. where\u6761\u4ef6\u67e5\u8be2 $users = DB::table(‘users’)->where(‘name’, ‘=’, ‘John’)->get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u793a\u4f8b\u4eceusers\u8868\u4e2d\u67e5\u8be2name\u7b49\u4e8e’John’\u7684\u8bb0\u5f55\u3002\u53ef\u4ee5\u901a\u8fc7\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6765\u6307\u5b9a\u6761\u4ef6\u7c7b\u578b\uff0c\u5982’>’\u3001’=’\u3001’ b. orWhere\u6761\u4ef6\u67e5\u8be2 $users = DB::table(‘users’)->where(‘name’, ‘=’, ‘John’)->orWhere(‘name’, ‘=’, ‘Mary’)->get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u793a\u4f8b\u662f\u4eceusers\u8868\u4e2d\u67e5\u8be2name\u7b49\u4e8e’John’\u6216’name’\u7b49\u4e8e’Mary’\u7684\u8bb0\u5f55\u3002 c. \u591a\u4e2aWhere\u6761\u4ef6\u67e5\u8be2 $users = DB::table(‘users’)->where([ [‘status’, ‘=’, ‘1’], [‘name’, ”, ‘John’] ])->get(); \u767b\u5f55\u540e\u590d\u5236 […]<\/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-22831","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22831","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=22831"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22831\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}