{"id":25265,"date":"2024-11-21T17:09:54","date_gmt":"2024-11-21T09:09:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25265\/"},"modified":"2024-11-21T17:09:54","modified_gmt":"2024-11-21T09:09:54","slug":"laravel%e4%b8%adwhere%e6%96%b9%e6%b3%95%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25265\/","title":{"rendered":"Laravel\u4e2dwhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u8be6\u89e3"},"content":{"rendered":"

\"Laravel\u4e2dwhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u8be6\u89e3\u63d2\u56fe\"<\/p>\n

Laravel\u4e2dwhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u8be6\u89e3<\/p>\n

Laravel\u662f\u4e00\u6b3e\u6d41\u884c\u7684PHP\u5f00\u53d1\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u65b9\u6cd5\uff0c\u5176\u4e2dwhere\u65b9\u6cd5\u662f\u5e38\u7528\u7684\u4e00\u4e2a\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdLaravel\u4e2dwhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\uff0c\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n

1. \u57fa\u672c\u7528\u6cd5<\/h3>\n

\u5728Laravel\u4e2d\uff0cwhere\u65b9\u6cd5\u7528\u4e8e\u5728\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\u6dfb\u52a0\u6761\u4ef6\u3002\u6700\u5e38\u89c1\u7684\u7528\u6cd5\u662f\u5728\u67e5\u8be2\u6784\u5efa\u5668QueryBuilder\u4e2d\u4f7f\u7528\uff0c\u4f8b\u5982\u5728\u63a7\u5236\u5668\u4e2d\u67e5\u8be2\u6570\u636e\u5e93\u4fe1\u606f\u65f6\u4f7f\u7528\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n

$users = DB::table('users')-&gt;where('id', 1)-&gt;get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c06\u5728users\u8868\u4e2d\u67e5\u8be2id\u4e3a1\u7684\u7528\u6237\u4fe1\u606f\uff0c\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728$users\u53d8\u91cf\u4e2d\u3002<\/p>\n
2. \u591a\u6761\u4ef6\u67e5\u8be2<\/h3>\n
where\u65b9\u6cd5\u8fd8\u53ef\u4ee5\u7528\u4e8e\u591a\u6761\u4ef6\u67e5\u8be2\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f20\u9012\u591a\u4e2a\u53c2\u6570\u6765\u5b9a\u4e49\u591a\u4e2a\u6761\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n
$users = DB::table('users')\n            -&gt;where('name', 'John Doe')\n            -&gt;where('age', '&gt;', 25)\n            -&gt;get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c06\u67e5\u8be2\u540d\u4e3a”John Doe”\u4e14\u5e74\u9f84\u5927\u4e8e25\u5c81\u7684\u7528\u6237\u4fe1\u606f\u3002<\/p>\n
3. \u6bd4\u8f83\u64cd\u4f5c\u7b26<\/h3>\n
where\u65b9\u6cd5\u4e5f\u652f\u6301\u6bd4\u8f83\u64cd\u4f5c\u7b26\uff0c\u5982\u5927\u4e8e\uff08>\uff09\u3001\u5c0f\u4e8e\uff08<\/p>\n
$users = DB::table('users')-&gt;where('age', '&gt;', 30)-&gt;get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c06\u67e5\u8be2\u5e74\u9f84\u5927\u4e8e30\u5c81\u7684\u7528\u6237\u4fe1\u606f\u3002<\/p>\n
4. \u539f\u59cb\u8868\u8fbe\u5f0f<\/h3>\n
\u9664\u4e86\u6bd4\u8f83\u64cd\u4f5c\u7b26\uff0cwhere\u65b9\u6cd5\u8fd8\u652f\u6301\u539f\u59cb\u7684SQL\u8868\u8fbe\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n
$users = DB::table('users')-&gt;whereRaw('age &gt; 30 AND gender = \"male\"')-&gt;get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c06\u67e5\u8be2\u5e74\u9f84\u5927\u4e8e30\u5c81\u4e14\u6027\u522b\u4e3a\u7537\u6027\u7684\u7528\u6237\u4fe1\u606f\u3002<\/p>\n
5. \u67e5\u8be2\u7279\u5b9a\u5b57\u6bb5<\/h3>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u53ea\u9700\u8981\u67e5\u8be2\u7279\u5b9a\u5b57\u6bb5\u7684\u4fe1\u606f\u3002\u53ef\u4ee5\u901a\u8fc7select\u65b9\u6cd5\u6307\u5b9a\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\uff0c\u7136\u540e\u518d\u4f7f\u7528where\u65b9\u6cd5\u6dfb\u52a0\u6761\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n
$users = DB::table('users')\n            -&gt;select('name', 'email')\n            -&gt;where('age', '&gt;', 30)\n            -&gt;get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c06\u67e5\u8be2\u5e74\u9f84\u5927\u4e8e30\u5c81\u7684\u7528\u6237\u7684\u59d3\u540d\u548c\u90ae\u7bb1\u4fe1\u606f\u3002<\/p>\n
\u7ed3\u8bed<\/h3>\n
\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u8bfb\u8005\u5e94\u8be5\u5bf9Laravel\u4e2dwhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u6709\u4e86\u66f4\u6e05\u6670\u7684\u7406\u89e3\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u7075\u6d3b\u8fd0\u7528where\u65b9\u6cd5\u53ef\u4ee5\u66f4\u9ad8\u6548\u5730\u67e5\u8be2\u6570\u636e\u5e93\u4fe1\u606f\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u638c\u63e1Laravel\u6846\u67b6\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u6280\u5de7\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fLaravel\u4e2dwhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u8be6\u89e3\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\u4e2dwhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u8be6\u89e3 Laravel\u662f\u4e00\u6b3e\u6d41\u884c\u7684PHP\u5f00\u53d1\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u65b9\u6cd5\uff0c\u5176\u4e2dwhere\u65b9\u6cd5\u662f\u5e38\u7528\u7684\u4e00\u4e2a\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdLaravel\u4e2dwhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\uff0c\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u3002 1. \u57fa\u672c\u7528\u6cd5 \u5728Laravel\u4e2d\uff0cwhere\u65b9\u6cd5\u7528\u4e8e\u5728\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\u6dfb\u52a0\u6761\u4ef6\u3002\u6700\u5e38\u89c1\u7684\u7528\u6cd5\u662f\u5728\u67e5\u8be2\u6784\u5efa\u5668QueryBuilder\u4e2d\u4f7f\u7528\uff0c\u4f8b\u5982\u5728\u63a7\u5236\u5668\u4e2d\u67e5\u8be2\u6570\u636e\u5e93\u4fe1\u606f\u65f6\u4f7f\u7528\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a $users = DB::table(‘users’)-&gt;where(‘id’, 1)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u5c06\u5728users\u8868\u4e2d\u67e5\u8be2id\u4e3a1\u7684\u7528\u6237\u4fe1\u606f\uff0c\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728$users\u53d8\u91cf\u4e2d\u3002 2. \u591a\u6761\u4ef6\u67e5\u8be2 where\u65b9\u6cd5\u8fd8\u53ef\u4ee5\u7528\u4e8e\u591a\u6761\u4ef6\u67e5\u8be2\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f20\u9012\u591a\u4e2a\u53c2\u6570\u6765\u5b9a\u4e49\u591a\u4e2a\u6761\u4ef6\u3002\u4f8b\u5982\uff1a $users = DB::table(‘users’) -&gt;where(‘name’, ‘John Doe’) -&gt;where(‘age’, ‘&gt;’, 25) -&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u5c06\u67e5\u8be2\u540d\u4e3a”John Doe”\u4e14\u5e74\u9f84\u5927\u4e8e25\u5c81\u7684\u7528\u6237\u4fe1\u606f\u3002 3. \u6bd4\u8f83\u64cd\u4f5c\u7b26 where\u65b9\u6cd5\u4e5f\u652f\u6301\u6bd4\u8f83\u64cd\u4f5c\u7b26\uff0c\u5982\u5927\u4e8e\uff08>\uff09\u3001\u5c0f\u4e8e\uff08 $users = DB::table(‘users’)-&gt;where(‘age’, ‘&gt;’, 30)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u5c06\u67e5\u8be2\u5e74\u9f84\u5927\u4e8e30\u5c81\u7684\u7528\u6237\u4fe1\u606f\u3002 4. \u539f\u59cb\u8868\u8fbe\u5f0f \u9664\u4e86\u6bd4\u8f83\u64cd\u4f5c\u7b26\uff0cwhere\u65b9\u6cd5\u8fd8\u652f\u6301\u539f\u59cb\u7684SQL\u8868\u8fbe\u5f0f\u3002\u4f8b\u5982\uff1a $users = DB::table(‘users’)-&gt;whereRaw(‘age &gt; 30 AND gender = “male”‘)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u5c06\u67e5\u8be2\u5e74\u9f84\u5927\u4e8e30\u5c81\u4e14\u6027\u522b\u4e3a\u7537\u6027\u7684\u7528\u6237\u4fe1\u606f\u3002 5. \u67e5\u8be2\u7279\u5b9a\u5b57\u6bb5 \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u53ea\u9700\u8981\u67e5\u8be2\u7279\u5b9a\u5b57\u6bb5\u7684\u4fe1\u606f\u3002\u53ef\u4ee5\u901a\u8fc7select\u65b9\u6cd5\u6307\u5b9a\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\uff0c\u7136\u540e\u518d\u4f7f\u7528where\u65b9\u6cd5\u6dfb\u52a0\u6761\u4ef6\u3002\u4f8b\u5982\uff1a $users […]<\/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-25265","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25265","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=25265"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25265\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}