{"id":25215,"date":"2024-11-21T12:00:02","date_gmt":"2024-11-21T04:00:02","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25215\/"},"modified":"2024-11-21T12:00:02","modified_gmt":"2024-11-21T04:00:02","slug":"laravel%e4%b8%adtake%e5%92%8climit%e7%9a%84%e5%8c%ba%e5%88%ab%e5%8f%8a%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25215\/","title":{"rendered":"Laravel\u4e2dtake\u548climit\u7684\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f\u89e3\u6790"},"content":{"rendered":"

\"Laravel\u4e2dtake\u548climit\u7684\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f\u89e3\u6790\u63d2\u56fe\"<\/p>\n

Laravel\u4e2dtake\u548climit\u7684\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f\u89e3\u6790<\/p>\n

\u5728Laravel\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\u7684\u60c5\u51b5\u3002\u5728\u5904\u7406\u6570\u636e\u65f6\uff0ctake\u548climit\u662f\u4e24\u4e2a\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u7528\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\uff0c\u4f46\u5728\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u4e2d\u6709\u4e00\u4e9b\u533a\u522b\u3002\u672c\u6587\u5c06\u4f1a\u8be6\u7ec6\u89e3\u6790take\u548climit\u7684\u533a\u522b\u4ee5\u53ca\u5b83\u4eec\u5728Laravel\u4e2d\u7684\u5e94\u7528\u573a\u666f\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

1. take\u65b9\u6cd5<\/h3>\n

\u5728Laravel\u4e2d\uff0ctake\u65b9\u6cd5\u7528\u4e8e\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\u3002take\u65b9\u6cd5\u7684\u8c03\u7528\u683c\u5f0f\u4e3a\uff1a<\/p>\n

$users = User::take(5)-&gt;get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u5c06\u67e5\u8be2\u51faUser\u6a21\u578b\u7684\u524d5\u6761\u8bb0\u5f55\u3002take\u65b9\u6cd5\u7684\u4f5c\u7528\u662f\u4ece\u67e5\u8be2\u7ed3\u679c\u4e2d\u53d6\u51fa\u6307\u5b9a\u6570\u91cf\u7684\u8bb0\u5f55\uff0c\u8fd4\u56de\u7684\u7ed3\u679c\u662f\u4e00\u4e2a\u96c6\u5408(Collection)\u3002<\/p>\n
take\u65b9\u6cd5\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u65b9\u4fbf\u5730\u6307\u5b9a\u9700\u8981\u83b7\u53d6\u7684\u8bb0\u5f55\u6570\u91cf\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e0e\u5176\u4ed6\u67e5\u8be2\u6761\u4ef6\u7ed3\u5408\u4f7f\u7528\u3002\u6bd4\u5982\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528take\u65b9\u6cd5\uff1a<\/p>\n
$users = User::where('status', 'active')-&gt;take(10)-&gt;get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u5c06\u67e5\u8be2\u51fa\u72b6\u6001\u4e3a’active’\u7684\u524d10\u4e2a\u7528\u6237\u8bb0\u5f55\u3002<\/p>\n
2. limit\u65b9\u6cd5<\/h3>\n
\u4e0etake\u65b9\u6cd5\u4e0d\u540c\uff0climit\u65b9\u6cd5\u662f\u5728SQL\u8bed\u53e5\u4e2d\u4f7f\u7528\u7684\u9650\u5236\u7ed3\u679c\u6570\u91cf\u7684\u65b9\u6cd5\u3002\u5728Laravel\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7DB\u95e8\u9762\u6216\u8005Query Builder\u5bf9\u8c61\u6765\u4f7f\u7528limit\u65b9\u6cd5\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n
$users = DB::table('users')-&gt;limit(5)-&gt;get();<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u5c06\u67e5\u8be2\u51fausers\u8868\u4e2d\u7684\u524d5\u6761\u8bb0\u5f55\u3002<\/p>\n
limit\u65b9\u6cd5\u4e0etake\u65b9\u6cd5\u7684\u4f5c\u7528\u662f\u76f8\u540c\u7684\uff0c\u90fd\u662f\u7528\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\u3002\u4f46\u662flimit\u65b9\u6cd5\u9700\u8981\u5728SQL\u67e5\u8be2\u4e2d\u6307\u5b9a\uff0c\u800ctake\u65b9\u6cd5\u662f\u5728Laravel\u7684\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u4f7f\u7528\u7684\uff0c\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u7ed3\u5408\u5176\u4ed6\u67e5\u8be2\u6761\u4ef6\u3002<\/p>\n
3. \u533a\u522b\u53ca\u5e94\u7528\u573a\u666f<\/h3>\n
\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u5e94\u6839\u636e\u5177\u4f53\u7684\u60c5\u51b5\u9009\u62e9\u4f7f\u7528take\u8fd8\u662flimit\u65b9\u6cd5\u3002\u4e0b\u9762\u5217\u4e3e\u4e86\u4e00\u4e9b\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f\u4f9b\u53c2\u8003\uff1a<\/p>\n
    \n
  • take\u65b9\u6cd5\u662f\u5728Laravel\u7684\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u4f7f\u7528\u7684\uff0c\u66f4\u4fbf\u4e8e\u6784\u5efa\u590d\u6742\u7684\u67e5\u8be2\u6761\u4ef6\uff0c\u5e76\u4e14\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u96c6\u5408\u5bf9\u8c61\uff0c\u65b9\u4fbf\u540e\u7eed\u7684\u5904\u7406\uff1b<\/li>\n
  • limit\u65b9\u6cd5\u662f\u5728SQL\u8bed\u53e5\u4e2d\u4f7f\u7528\u7684\uff0c\u9002\u5408\u5728\u7b80\u5355\u7684\u67e5\u8be2\u4e2d\u4f7f\u7528\uff0c\u5c24\u5176\u662f\u9700\u8981\u6267\u884c\u539f\u751fSQL\u8bed\u53e5\u7684\u60c5\u51b5\uff1b<\/li>\n
  • take\u65b9\u6cd5\u901a\u5e38\u7528\u4e8eEloquent\u6a21\u578b\u7684\u67e5\u8be2\uff0c\u53ef\u4ee5\u4e0e\u6a21\u578b\u5173\u8054\u53ca\u5176\u4ed6\u67e5\u8be2\u6761\u4ef6\u7ed3\u5408\u4f7f\u7528\uff1b<\/li>\n
  • limit\u65b9\u6cd5\u9002\u7528\u4e8e\u4e00\u4e9b\u590d\u6742\u7684SQL\u67e5\u8be2\uff0c\u6bd4\u5982\u6d89\u53ca\u591a\u8868\u5173\u8054\u67e5\u8be2\u7684\u60c5\u51b5\uff0c\u53ef\u76f4\u63a5\u5728SQL\u8bed\u53e5\u4e2d\u6307\u5b9a\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\u3002<\/li>\n<\/ul>\n
    4. \u4ee3\u7801\u793a\u4f8b<\/h3>\n
    \u4e0b\u9762\u63d0\u4f9b\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5728Laravel\u4e2d\u4f7f\u7528take\u548climit\u65b9\u6cd5\uff1a<\/p>\n
    \/\/ \u4f7f\u7528take\u65b9\u6cd5\u67e5\u8be2\u7528\u6237\u8868\u4e2d\u7684\u524d5\u6761\u8bb0\u5f55\n$users = User::take(5)-&gt;get();\n\n\/\/ \u4f7f\u7528limit\u65b9\u6cd5\u67e5\u8be2\u6587\u7ae0\u8868\u4e2d\u7684\u524d3\u6761\u8bb0\u5f55\n$articles = DB::table('articles')->limit(3)->get();<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u901a\u8fc7\u4e0a\u8ff0\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5982\u4f55\u4f7f\u7528take\u548climit\u65b9\u6cd5\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\uff0c\u4ee5\u53ca\u5b83\u4eec\u5728\u4e0d\u540c\u67e5\u8be2\u4e2d\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n
    \u603b\u4e4b\uff0ctake\u548climit\u65b9\u6cd5\u5728Laravel\u4e2d\u90fd\u6709\u5176\u72ec\u7279\u7684\u5e94\u7528\u573a\u666f\uff0c\u6839\u636e\u5b9e\u9645\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u66f4\u9ad8\u6548\u5730\u5904\u7406\u6570\u636e\u67e5\u8be2\u64cd\u4f5c\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n
    \u4ee5\u4e0a\u5c31\u662fLaravel\u4e2dtake\u548climit\u7684\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f\u89e3\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":"
    Laravel\u4e2dtake\u548climit\u7684\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f\u89e3\u6790 \u5728Laravel\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\u7684\u60c5\u51b5\u3002\u5728\u5904\u7406\u6570\u636e\u65f6\uff0ctake\u548climit\u662f\u4e24\u4e2a\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u7528\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\uff0c\u4f46\u5728\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u4e2d\u6709\u4e00\u4e9b\u533a\u522b\u3002\u672c\u6587\u5c06\u4f1a\u8be6\u7ec6\u89e3\u6790take\u548climit\u7684\u533a\u522b\u4ee5\u53ca\u5b83\u4eec\u5728Laravel\u4e2d\u7684\u5e94\u7528\u573a\u666f\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002 1. take\u65b9\u6cd5 \u5728Laravel\u4e2d\uff0ctake\u65b9\u6cd5\u7528\u4e8e\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\u3002take\u65b9\u6cd5\u7684\u8c03\u7528\u683c\u5f0f\u4e3a\uff1a $users = User::take(5)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u4ee3\u7801\u5c06\u67e5\u8be2\u51faUser\u6a21\u578b\u7684\u524d5\u6761\u8bb0\u5f55\u3002take\u65b9\u6cd5\u7684\u4f5c\u7528\u662f\u4ece\u67e5\u8be2\u7ed3\u679c\u4e2d\u53d6\u51fa\u6307\u5b9a\u6570\u91cf\u7684\u8bb0\u5f55\uff0c\u8fd4\u56de\u7684\u7ed3\u679c\u662f\u4e00\u4e2a\u96c6\u5408(Collection)\u3002 take\u65b9\u6cd5\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u65b9\u4fbf\u5730\u6307\u5b9a\u9700\u8981\u83b7\u53d6\u7684\u8bb0\u5f55\u6570\u91cf\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e0e\u5176\u4ed6\u67e5\u8be2\u6761\u4ef6\u7ed3\u5408\u4f7f\u7528\u3002\u6bd4\u5982\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528take\u65b9\u6cd5\uff1a $users = User::where(‘status’, ‘active’)-&gt;take(10)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u4ee3\u7801\u5c06\u67e5\u8be2\u51fa\u72b6\u6001\u4e3a’active’\u7684\u524d10\u4e2a\u7528\u6237\u8bb0\u5f55\u3002 2. limit\u65b9\u6cd5 \u4e0etake\u65b9\u6cd5\u4e0d\u540c\uff0climit\u65b9\u6cd5\u662f\u5728SQL\u8bed\u53e5\u4e2d\u4f7f\u7528\u7684\u9650\u5236\u7ed3\u679c\u6570\u91cf\u7684\u65b9\u6cd5\u3002\u5728Laravel\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7DB\u95e8\u9762\u6216\u8005Query Builder\u5bf9\u8c61\u6765\u4f7f\u7528limit\u65b9\u6cd5\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a $users = DB::table(‘users’)-&gt;limit(5)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u4ee3\u7801\u5c06\u67e5\u8be2\u51fausers\u8868\u4e2d\u7684\u524d5\u6761\u8bb0\u5f55\u3002 limit\u65b9\u6cd5\u4e0etake\u65b9\u6cd5\u7684\u4f5c\u7528\u662f\u76f8\u540c\u7684\uff0c\u90fd\u662f\u7528\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\u3002\u4f46\u662flimit\u65b9\u6cd5\u9700\u8981\u5728SQL\u67e5\u8be2\u4e2d\u6307\u5b9a\uff0c\u800ctake\u65b9\u6cd5\u662f\u5728Laravel\u7684\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u4f7f\u7528\u7684\uff0c\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u7ed3\u5408\u5176\u4ed6\u67e5\u8be2\u6761\u4ef6\u3002 3. \u533a\u522b\u53ca\u5e94\u7528\u573a\u666f \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u5e94\u6839\u636e\u5177\u4f53\u7684\u60c5\u51b5\u9009\u62e9\u4f7f\u7528take\u8fd8\u662flimit\u65b9\u6cd5\u3002\u4e0b\u9762\u5217\u4e3e\u4e86\u4e00\u4e9b\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f\u4f9b\u53c2\u8003\uff1a take\u65b9\u6cd5\u662f\u5728Laravel\u7684\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u4f7f\u7528\u7684\uff0c\u66f4\u4fbf\u4e8e\u6784\u5efa\u590d\u6742\u7684\u67e5\u8be2\u6761\u4ef6\uff0c\u5e76\u4e14\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u96c6\u5408\u5bf9\u8c61\uff0c\u65b9\u4fbf\u540e\u7eed\u7684\u5904\u7406\uff1b limit\u65b9\u6cd5\u662f\u5728SQL\u8bed\u53e5\u4e2d\u4f7f\u7528\u7684\uff0c\u9002\u5408\u5728\u7b80\u5355\u7684\u67e5\u8be2\u4e2d\u4f7f\u7528\uff0c\u5c24\u5176\u662f\u9700\u8981\u6267\u884c\u539f\u751fSQL\u8bed\u53e5\u7684\u60c5\u51b5\uff1b take\u65b9\u6cd5\u901a\u5e38\u7528\u4e8eEloquent\u6a21\u578b\u7684\u67e5\u8be2\uff0c\u53ef\u4ee5\u4e0e\u6a21\u578b\u5173\u8054\u53ca\u5176\u4ed6\u67e5\u8be2\u6761\u4ef6\u7ed3\u5408\u4f7f\u7528\uff1b limit\u65b9\u6cd5\u9002\u7528\u4e8e\u4e00\u4e9b\u590d\u6742\u7684SQL\u67e5\u8be2\uff0c\u6bd4\u5982\u6d89\u53ca\u591a\u8868\u5173\u8054\u67e5\u8be2\u7684\u60c5\u51b5\uff0c\u53ef\u76f4\u63a5\u5728SQL\u8bed\u53e5\u4e2d\u6307\u5b9a\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\u3002 4. \u4ee3\u7801\u793a\u4f8b \u4e0b\u9762\u63d0\u4f9b\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5728Laravel\u4e2d\u4f7f\u7528take\u548climit\u65b9\u6cd5\uff1a \/\/ \u4f7f\u7528take\u65b9\u6cd5\u67e5\u8be2\u7528\u6237\u8868\u4e2d\u7684\u524d5\u6761\u8bb0\u5f55 $users = User::take(5)-&gt;get(); \/\/ \u4f7f\u7528limit\u65b9\u6cd5\u67e5\u8be2\u6587\u7ae0\u8868\u4e2d\u7684\u524d3\u6761\u8bb0\u5f55 $articles = DB::table(‘articles’)->limit(3)->get(); \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7\u4e0a\u8ff0\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5982\u4f55\u4f7f\u7528take\u548climit\u65b9\u6cd5\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\uff0c\u4ee5\u53ca\u5b83\u4eec\u5728\u4e0d\u540c\u67e5\u8be2\u4e2d\u7684\u5e94\u7528\u573a\u666f\u3002 \u603b\u4e4b\uff0ctake\u548climit\u65b9\u6cd5\u5728Laravel\u4e2d\u90fd\u6709\u5176\u72ec\u7279\u7684\u5e94\u7528\u573a\u666f\uff0c\u6839\u636e\u5b9e\u9645\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u66f4\u9ad8\u6548\u5730\u5904\u7406\u6570\u636e\u67e5\u8be2\u64cd\u4f5c\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff01 \u4ee5\u4e0a\u5c31\u662fLaravel\u4e2dtake\u548climit\u7684\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f\u89e3\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-25215","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25215","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=25215"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25215\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}