{"id":25212,"date":"2024-11-21T15:32:23","date_gmt":"2024-11-21T07:32:23","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25212\/"},"modified":"2024-11-21T15:32:23","modified_gmt":"2024-11-21T07:32:23","slug":"laravel%e4%b8%adtake%e5%92%8climit%e7%9a%84%e5%8a%9f%e8%83%bd%e5%8f%8a%e7%94%a8%e6%b3%95%e5%af%b9%e6%af%94","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25212\/","title":{"rendered":"Laravel\u4e2dtake\u548climit\u7684\u529f\u80fd\u53ca\u7528\u6cd5\u5bf9\u6bd4"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/465\/014\/170998974662597.jpg\" class=\"aligncenter\" title=\"Laravel\u4e2dtake\u548climit\u7684\u529f\u80fd\u53ca\u7528\u6cd5\u5bf9\u6bd4\u63d2\u56fe\" alt=\"Laravel\u4e2dtake\u548climit\u7684\u529f\u80fd\u53ca\u7528\u6cd5\u5bf9\u6bd4\u63d2\u56fe\" \/><\/p>\n<p>Laravel \u4e2d take \u548c limit \u662f\u4e24\u79cd\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u7528\u4e8e\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u96c6\u7684\u6570\u91cf\u3002\u867d\u7136\u5b83\u4eec\u5728\u529f\u80fd\u4e0a\u6709\u4e00\u5b9a\u7684\u76f8\u4f3c\u4e4b\u5904\uff0c\u4f46\u5728\u4f7f\u7528\u65b9\u5f0f\u548c\u4e00\u4e9b\u7ec6\u8282\u4e0a\u6709\u6240\u4e0d\u540c\u3002\u672c\u6587\u5c06\u5bf9\u8fd9\u4e24\u79cd\u65b9\u6cd5\u7684\u529f\u80fd\u53ca\u7528\u6cd5\u8fdb\u884c\u8be6\u7ec6\u5bf9\u6bd4\uff0c\u540c\u65f6\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u548c\u5982\u4f55\u6b63\u786e\u5730\u5e94\u7528\u3002<\/p>\n<hr>\n<h3>1. take \u65b9\u6cd5<\/h3>\n<p>take \u65b9\u6cd5\u662f Laravel Eloquent \u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u5e38\u7528\u7684\u65b9\u6cd5\u4e4b\u4e00\uff0c\u7528\u4e8e\u6307\u5b9a\u83b7\u53d6\u7684\u8bb0\u5f55\u6570\u91cf\u3002\u5f53\u8c03\u7528 take \u65b9\u6cd5\u65f6\uff0c\u5b83\u4f1a\u8fd4\u56de\u67e5\u8be2\u6784\u5efa\u5668\u5b9e\u4f8b\uff0c\u5141\u8bb8\u94fe\u5f0f\u8c03\u7528\u5176\u4ed6\u65b9\u6cd5\u3002<\/p>\n<p>\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>$users = AppModelsUser::take(5)-&amp;gt;get();<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e0a\u8ff0\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7 take(5) \u65b9\u6cd5\u6307\u5b9a\u83b7\u53d6 5 \u6761\u7528\u6237\u8bb0\u5f55\u3002\u5f53\u8c03\u7528 get \u65b9\u6cd5\u65f6\uff0c\u5b9e\u9645\u6267\u884c\u4e86 SELECT * FROM users LIMIT 5 \u7684\u67e5\u8be2\u3002<\/p>\n<h3>2. limit \u65b9\u6cd5<\/h3>\n<p>\u4e0e take \u65b9\u6cd5\u7c7b\u4f3c\uff0climit \u65b9\u6cd5\u4e5f\u662f\u7528\u4e8e\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u96c6\u6570\u91cf\u7684\u65b9\u6cd5\uff0c\u4e0d\u8fc7 limit \u65b9\u6cd5\u662f\u5728 SQL \u67e5\u8be2\u4e2d\u5b9e\u9645\u4f7f\u7528\u7684\u65b9\u6cd5\uff0c\u800c\u4e0d\u662f\u5728 Eloquent \u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u7684\u65b9\u6cd5\u3002\u5728\u4f7f\u7528 limit \u65b9\u6cd5\u65f6\uff0c\u9700\u8981\u5148\u6784\u5efa\u67e5\u8be2\u5668\uff0c\u7136\u540e\u901a\u8fc7 limit \u65b9\u6cd5\u6765\u6307\u5b9a\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\u3002<\/p>\n<p>\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>$users = AppModelsUser::query()-&amp;gt;limit(5)-&amp;gt;get();<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7 limit(5) \u65b9\u6cd5\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u96c6\u4e3a 5 \u6761\u8bb0\u5f55\u3002\u6700\u7ec8\u6267\u884c\u7684 SQL \u4e3a SELECT * FROM users LIMIT 5\u3002<\/p>\n<h3>3. \u529f\u80fd\u5bf9\u6bd4<\/h3>\n<p>\u5728\u529f\u80fd\u4e0a\uff0ctake \u548c limit \u65b9\u6cd5\u90fd\u53ef\u4ee5\u7528\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u96c6\u7684\u6570\u91cf\uff0c\u6548\u679c\u662f\u76f8\u540c\u7684\u3002\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u4e2a\u4eba\u4e60\u60ef\u548c\u9879\u76ee\u9700\u6c42\u6765\u9009\u62e9\u4f7f\u7528\u54ea\u79cd\u65b9\u6cd5\u3002<\/p>\n<p>\u5728\u4f7f\u7528\u4e0a\uff0ctake \u65b9\u6cd5\u5c5e\u4e8e Laravel \u7684 Eloquent \u67e5\u8be2\u6784\u5efa\u5668\u65b9\u6cd5\uff0c\u9002\u5408\u5728 Eloquent \u67e5\u8be2\u4e2d\u94fe\u5f0f\u8c03\u7528\uff0c\u4fbf\u4e8e\u7f16\u5199\u66f4\u52a0\u4f18\u96c5\u7684\u4ee3\u7801\u3002\u800c limit \u65b9\u6cd5\u662f\u76f4\u63a5\u5728 SQL \u67e5\u8be2\u8bed\u53e5\u4e2d\u4f7f\u7528\u7684\uff0c\u9002\u5408\u5bf9\u539f\u751f SQL \u67e5\u8be2\u8fdb\u884c\u9650\u5236\u3002<\/p>\n<h3>4. \u793a\u4f8b\u4ee3\u7801<\/h3>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7ed3\u5408\u4f7f\u7528 take \u548c limit \u65b9\u6cd5\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>\/\/ \u4f7f\u7528 take \u65b9\u6cd5\n$usersTake = AppModelsUser::take(3)-&amp;gt;get();\n\n\/\/ \u4f7f\u7528 limit \u65b9\u6cd5\n$usersLimit = AppModelsUser::query()-&amp;gt;limit(3)-&amp;gt;get();<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u793a\u4f8b\u53ef\u89c1\uff0c\u65e0\u8bba\u662f\u4f7f\u7528 take \u65b9\u6cd5\u8fd8\u662f limit \u65b9\u6cd5\uff0c\u6700\u7ec8\u7684\u6548\u679c\u90fd\u662f\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u96c6\u7684\u6570\u91cf\u4e3a 3 \u6761\u8bb0\u5f55\u3002<\/p>\n<h3>\u7ed3\u8bed<\/h3>\n<p>\u901a\u8fc7\u672c\u6587\u7684\u5bf9\u6bd4\u5206\u6790\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230 take \u548c limit \u65b9\u6cd5\u5728\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\u8fd9\u4e00\u70b9\u4e0a\u6709\u7740\u76f8\u4f3c\u7684\u529f\u80fd\uff0c\u4f46\u5728\u4f7f\u7528\u65f6\u6709\u6240\u4e0d\u540c\u3002\u6839\u636e\u4e2a\u4eba\u559c\u597d\u548c\u9879\u76ee\u9700\u6c42\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3 take \u548c limit \u65b9\u6cd5\u7684\u529f\u80fd\u53ca\u7528\u6cd5\u3002<\/p>\n<hr>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u5185\u5bb9\uff0c\u8bfb\u8005\u53ef\u4ee5\u66f4\u52a0\u6df1\u5165\u5730\u4e86\u89e3 Laravel \u4e2d take \u548c limit \u65b9\u6cd5\u7684\u529f\u80fd\u53ca\u7528\u6cd5\u5bf9\u6bd4\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u8bfb\u8005\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fLaravel\u4e2dtake\u548climit\u7684\u529f\u80fd\u53ca\u7528\u6cd5\u5bf9\u6bd4\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":"<p>Laravel \u4e2d take \u548c limit \u662f\u4e24\u79cd\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u7528\u4e8e\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u96c6\u7684\u6570\u91cf\u3002\u867d\u7136\u5b83\u4eec\u5728\u529f\u80fd\u4e0a\u6709\u4e00\u5b9a\u7684\u76f8\u4f3c\u4e4b\u5904\uff0c\u4f46\u5728\u4f7f\u7528\u65b9\u5f0f\u548c\u4e00\u4e9b\u7ec6\u8282\u4e0a\u6709\u6240\u4e0d\u540c\u3002\u672c\u6587\u5c06\u5bf9\u8fd9\u4e24\u79cd\u65b9\u6cd5\u7684\u529f\u80fd\u53ca\u7528\u6cd5\u8fdb\u884c\u8be6\u7ec6\u5bf9\u6bd4\uff0c\u540c\u65f6\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u548c\u5982\u4f55\u6b63\u786e\u5730\u5e94\u7528\u3002 1. take \u65b9\u6cd5 take \u65b9\u6cd5\u662f Laravel Eloquent \u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u5e38\u7528\u7684\u65b9\u6cd5\u4e4b\u4e00\uff0c\u7528\u4e8e\u6307\u5b9a\u83b7\u53d6\u7684\u8bb0\u5f55\u6570\u91cf\u3002\u5f53\u8c03\u7528 take \u65b9\u6cd5\u65f6\uff0c\u5b83\u4f1a\u8fd4\u56de\u67e5\u8be2\u6784\u5efa\u5668\u5b9e\u4f8b\uff0c\u5141\u8bb8\u94fe\u5f0f\u8c03\u7528\u5176\u4ed6\u65b9\u6cd5\u3002 \u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a $users = AppModelsUser::take(5)-&amp;gt;get(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7 take(5) \u65b9\u6cd5\u6307\u5b9a\u83b7\u53d6 5 \u6761\u7528\u6237\u8bb0\u5f55\u3002\u5f53\u8c03\u7528 get \u65b9\u6cd5\u65f6\uff0c\u5b9e\u9645\u6267\u884c\u4e86 SELECT * FROM users LIMIT 5 \u7684\u67e5\u8be2\u3002 2. limit \u65b9\u6cd5 \u4e0e take \u65b9\u6cd5\u7c7b\u4f3c\uff0climit \u65b9\u6cd5\u4e5f\u662f\u7528\u4e8e\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u96c6\u6570\u91cf\u7684\u65b9\u6cd5\uff0c\u4e0d\u8fc7 limit \u65b9\u6cd5\u662f\u5728 SQL \u67e5\u8be2\u4e2d\u5b9e\u9645\u4f7f\u7528\u7684\u65b9\u6cd5\uff0c\u800c\u4e0d\u662f\u5728 Eloquent \u67e5\u8be2\u6784\u5efa\u5668\u4e2d\u7684\u65b9\u6cd5\u3002\u5728\u4f7f\u7528 limit \u65b9\u6cd5\u65f6\uff0c\u9700\u8981\u5148\u6784\u5efa\u67e5\u8be2\u5668\uff0c\u7136\u540e\u901a\u8fc7 limit \u65b9\u6cd5\u6765\u6307\u5b9a\u67e5\u8be2\u7ed3\u679c\u7684\u6570\u91cf\u3002 \u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a $users = [&hellip;]<\/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-25212","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25212","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=25212"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25212\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}