{"id":25241,"date":"2024-11-21T14:05:09","date_gmt":"2024-11-21T06:05:09","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25241\/"},"modified":"2024-11-21T14:05:09","modified_gmt":"2024-11-21T06:05:09","slug":"laravel%e4%b8%adtake%e5%92%8climit%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25241\/","title":{"rendered":"Laravel\u4e2dtake\u548climit\u7684\u4f7f\u7528\u65b9\u6cd5\u8be6\u89e3"},"content":{"rendered":"

\"Laravel\u4e2dtake\u548climit\u7684\u4f7f\u7528\u65b9\u6cd5\u8be6\u89e3\u63d2\u56fe\"<\/p>\n

\u300aLaravel\u4e2dtake\u548climit\u7684\u4f7f\u7528\u65b9\u6cd5\u8be6\u89e3\u300b<\/p>\n

\u5728Laravel\u4e2d\uff0ctake\u548climit\u662f\u4e24\u4e2a\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u7528\u4e8e\u5728\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u3002\u867d\u7136\u5b83\u4eec\u7684\u4f5c\u7528\u7c7b\u4f3c\uff0c\u4f46\u5728\u5177\u4f53\u7684\u4f7f\u7528\u573a\u666f\u4e2d\u6709\u4e00\u4e9b\u7ec6\u5fae\u7684\u533a\u522b\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u89e3\u6790\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u7684\u7528\u6cd5\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001take\u65b9\u6cd5<\/h3>\n

\u5728Laravel\u4e2d\uff0ctake\u65b9\u6cd5\u7528\u4e8e\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0c\u901a\u5e38\u7ed3\u5408orderBy\u65b9\u6cd5\u4e00\u8d77\u4f7f\u7528\u3002take\u65b9\u6cd5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

$results = DB::table('table_name')-&gt;take(5)-&gt;get();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u8868\u793a\u4ece\u8868table_name\u4e2d\u53d6\u51fa\u524d5\u6761\u8bb0\u5f55\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0ctake\u65b9\u6cd5\u5e76\u4e0d\u4f1a\u6539\u53d8\u539f\u672c\u67e5\u8be2\u7684\u6392\u5e8f\uff0c\u5982\u679c\u9700\u8981\u6309\u7167\u7279\u5b9a\u5b57\u6bb5\u6392\u5e8f\u518d\u53d6\u51fa\u8bb0\u5f55\uff0c\u53ef\u4ee5\u5728take\u4e4b\u524d\u4f7f\u7528orderBy\u65b9\u6cd5\u3002\u4f8b\u5982\uff1a<\/p>\n
$results = DB::table('table_name')-&gt;orderBy('created_at', 'desc')-&gt;take(10)-&gt;get();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u8868\u793a\u5148\u6309\u7167created_at\u5b57\u6bb5\u964d\u5e8f\uff0c\u7136\u540e\u53d6\u51fa\u524d10\u6761\u8bb0\u5f55\u3002<\/p>\n
\u4e8c\u3001limit\u65b9\u6cd5<\/h3>\n
\u4e0etake\u65b9\u6cd5\u7c7b\u4f3c\uff0climit\u65b9\u6cd5\u4e5f\u7528\u4e8e\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u3002\u5728Laravel\u4e2d\uff0climit\u65b9\u6cd5\u901a\u5e38\u7528\u4e8e\u5728Eloquent\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u3002limit\u65b9\u6cd5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
$results = ModelName::query()-&gt;limit(3)-&gt;get();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u8868\u793a\u4eceModelName\u5bf9\u5e94\u7684\u6570\u636e\u8868\u4e2d\u53d6\u51fa\u524d3\u6761\u8bb0\u5f55\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0climit\u65b9\u6cd5\u4e00\u822c\u4f1a\u4e0eorderBy\u65b9\u6cd5\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u786e\u4fdd\u8fd4\u56de\u7684\u8bb0\u5f55\u662f\u6309\u7167\u7279\u5b9a\u6761\u4ef6\u6392\u5e8f\u7684\u3002\u4f8b\u5982\uff1a<\/p>\n
$results = ModelName::query()-&gt;orderBy('created_at', 'desc')-&gt;limit(5)-&gt;get();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u8868\u793a\u5148\u6309\u7167created_at\u5b57\u6bb5\u964d\u5e8f\u6392\u5217\uff0c\u7136\u540e\u53d6\u51fa\u524d5\u6761\u8bb0\u5f55\u3002<\/p>\n
\u4e09\u3001take\u548climit\u7684\u533a\u522b<\/h3>\n
\u867d\u7136take\u548climit\u90fd\u53ef\u4ee5\u7528\u6765\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0c\u4f46\u5b83\u4eec\u5728\u4f7f\u7528\u4e0a\u8fd8\u662f\u6709\u4e00\u4e9b\u533a\u522b\u7684\u3002\u4e3b\u8981\u533a\u522b\u5982\u4e0b\uff1a<\/p>\n
    \n
  1. take\u65b9\u6cd5\u4e00\u822c\u7528\u4e8e\u539f\u751fSQL\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\uff0c\u800climit\u65b9\u6cd5\u4e00\u822c\u7528\u4e8eEloquent\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u3002<\/li>\n
  2. take\u65b9\u6cd5\u652f\u6301\u94fe\u5f0f\u8c03\u7528\uff0c\u53ef\u4ee5\u4e0e\u5176\u4ed6\u65b9\u6cd5\u4e00\u8d77\u4f7f\u7528\uff1b\u800climit\u65b9\u6cd5\u4e00\u822c\u72ec\u7acb\u4f7f\u7528\uff0c\u5e76\u4e14\u9700\u8981\u653e\u5728get\u65b9\u6cd5\u4e4b\u524d\u3002<\/li>\n
  3. take\u65b9\u6cd5\u5728\u5199\u539f\u751f\u67e5\u8be2\u65f6\u4f7f\u7528\u8f83\u591a\uff0c\u800climit\u65b9\u6cd5\u5728\u4f7f\u7528Eloquent\u67e5\u8be2\u6784\u5efa\u5668\u65f6\u6bd4\u8f83\u5e38\u89c1\u3002<\/li>\n<\/ol>\n
    \u56db\u3001\u603b\u7ed3<\/h3>\n
    \u5728Laravel\u4e2d\uff0ctake\u548climit\u65b9\u6cd5\u662f\u9650\u5236\u8fd4\u56de\u8bb0\u5f55\u6570\u5e38\u7528\u7684\u4e24\u79cd\u65b9\u5f0f\u3002\u901a\u8fc7\u672c\u6587\u7684\u8be6\u7ec6\u89e3\u6790\u548c\u793a\u4f8b\u4ee3\u7801\uff0c\u76f8\u4fe1\u8bfb\u8005\u5df2\u7ecf\u5bf9\u5b83\u4eec\u7684\u4f7f\u7528\u6709\u4e86\u66f4\u6e05\u6670\u7684\u8ba4\u8bc6\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0c\u5c06\u6709\u52a9\u4e8e\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6027\u80fd\u3002<\/p>\n
    \u5e0c\u671b\u672c\u6587\u80fd\u4e3a\u8bfb\u8005\u5e26\u6765\u5e2e\u52a9\uff0c\u8c22\u8c22\u9605\u8bfb\uff01<\/p>\n
    \u4ee5\u4e0a\u5c31\u662fLaravel\u4e2dtake\u548climit\u7684\u4f7f\u7528\u65b9\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":"
    \u300aLaravel\u4e2dtake\u548climit\u7684\u4f7f\u7528\u65b9\u6cd5\u8be6\u89e3\u300b \u5728Laravel\u4e2d\uff0ctake\u548climit\u662f\u4e24\u4e2a\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u7528\u4e8e\u5728\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u3002\u867d\u7136\u5b83\u4eec\u7684\u4f5c\u7528\u7c7b\u4f3c\uff0c\u4f46\u5728\u5177\u4f53\u7684\u4f7f\u7528\u573a\u666f\u4e2d\u6709\u4e00\u4e9b\u7ec6\u5fae\u7684\u533a\u522b\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u89e3\u6790\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u7684\u7528\u6cd5\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001take\u65b9\u6cd5 \u5728Laravel\u4e2d\uff0ctake\u65b9\u6cd5\u7528\u4e8e\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0c\u901a\u5e38\u7ed3\u5408orderBy\u65b9\u6cd5\u4e00\u8d77\u4f7f\u7528\u3002take\u65b9\u6cd5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a $results = DB::table(‘table_name’)-&gt;take(5)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u8868\u793a\u4ece\u8868table_name\u4e2d\u53d6\u51fa\u524d5\u6761\u8bb0\u5f55\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0ctake\u65b9\u6cd5\u5e76\u4e0d\u4f1a\u6539\u53d8\u539f\u672c\u67e5\u8be2\u7684\u6392\u5e8f\uff0c\u5982\u679c\u9700\u8981\u6309\u7167\u7279\u5b9a\u5b57\u6bb5\u6392\u5e8f\u518d\u53d6\u51fa\u8bb0\u5f55\uff0c\u53ef\u4ee5\u5728take\u4e4b\u524d\u4f7f\u7528orderBy\u65b9\u6cd5\u3002\u4f8b\u5982\uff1a $results = DB::table(‘table_name’)-&gt;orderBy(‘created_at’, ‘desc’)-&gt;take(10)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u4ee3\u7801\u8868\u793a\u5148\u6309\u7167created_at\u5b57\u6bb5\u964d\u5e8f\uff0c\u7136\u540e\u53d6\u51fa\u524d10\u6761\u8bb0\u5f55\u3002 \u4e8c\u3001limit\u65b9\u6cd5 \u4e0etake\u65b9\u6cd5\u7c7b\u4f3c\uff0climit\u65b9\u6cd5\u4e5f\u7528\u4e8e\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u3002\u5728Laravel\u4e2d\uff0climit\u65b9\u6cd5\u901a\u5e38\u7528\u4e8e\u5728Eloquent\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u3002limit\u65b9\u6cd5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a $results = ModelName::query()-&gt;limit(3)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u8868\u793a\u4eceModelName\u5bf9\u5e94\u7684\u6570\u636e\u8868\u4e2d\u53d6\u51fa\u524d3\u6761\u8bb0\u5f55\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0climit\u65b9\u6cd5\u4e00\u822c\u4f1a\u4e0eorderBy\u65b9\u6cd5\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u786e\u4fdd\u8fd4\u56de\u7684\u8bb0\u5f55\u662f\u6309\u7167\u7279\u5b9a\u6761\u4ef6\u6392\u5e8f\u7684\u3002\u4f8b\u5982\uff1a $results = ModelName::query()-&gt;orderBy(‘created_at’, ‘desc’)-&gt;limit(5)-&gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u4ee3\u7801\u8868\u793a\u5148\u6309\u7167created_at\u5b57\u6bb5\u964d\u5e8f\u6392\u5217\uff0c\u7136\u540e\u53d6\u51fa\u524d5\u6761\u8bb0\u5f55\u3002 \u4e09\u3001take\u548climit\u7684\u533a\u522b \u867d\u7136take\u548climit\u90fd\u53ef\u4ee5\u7528\u6765\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0c\u4f46\u5b83\u4eec\u5728\u4f7f\u7528\u4e0a\u8fd8\u662f\u6709\u4e00\u4e9b\u533a\u522b\u7684\u3002\u4e3b\u8981\u533a\u522b\u5982\u4e0b\uff1a take\u65b9\u6cd5\u4e00\u822c\u7528\u4e8e\u539f\u751fSQL\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\uff0c\u800climit\u65b9\u6cd5\u4e00\u822c\u7528\u4e8eEloquent\u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u3002 take\u65b9\u6cd5\u652f\u6301\u94fe\u5f0f\u8c03\u7528\uff0c\u53ef\u4ee5\u4e0e\u5176\u4ed6\u65b9\u6cd5\u4e00\u8d77\u4f7f\u7528\uff1b\u800climit\u65b9\u6cd5\u4e00\u822c\u72ec\u7acb\u4f7f\u7528\uff0c\u5e76\u4e14\u9700\u8981\u653e\u5728get\u65b9\u6cd5\u4e4b\u524d\u3002 take\u65b9\u6cd5\u5728\u5199\u539f\u751f\u67e5\u8be2\u65f6\u4f7f\u7528\u8f83\u591a\uff0c\u800climit\u65b9\u6cd5\u5728\u4f7f\u7528Eloquent\u67e5\u8be2\u6784\u5efa\u5668\u65f6\u6bd4\u8f83\u5e38\u89c1\u3002 \u56db\u3001\u603b\u7ed3 \u5728Laravel\u4e2d\uff0ctake\u548climit\u65b9\u6cd5\u662f\u9650\u5236\u8fd4\u56de\u8bb0\u5f55\u6570\u5e38\u7528\u7684\u4e24\u79cd\u65b9\u5f0f\u3002\u901a\u8fc7\u672c\u6587\u7684\u8be6\u7ec6\u89e3\u6790\u548c\u793a\u4f8b\u4ee3\u7801\uff0c\u76f8\u4fe1\u8bfb\u8005\u5df2\u7ecf\u5bf9\u5b83\u4eec\u7684\u4f7f\u7528\u6709\u4e86\u66f4\u6e05\u6670\u7684\u8ba4\u8bc6\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u9650\u5236\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\uff0c\u5c06\u6709\u52a9\u4e8e\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6027\u80fd\u3002 \u5e0c\u671b\u672c\u6587\u80fd\u4e3a\u8bfb\u8005\u5e26\u6765\u5e2e\u52a9\uff0c\u8c22\u8c22\u9605\u8bfb\uff01 \u4ee5\u4e0a\u5c31\u662fLaravel\u4e2dtake\u548climit\u7684\u4f7f\u7528\u65b9\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-25241","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25241","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=25241"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25241\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}