{"id":25209,"date":"2024-11-21T14:59:10","date_gmt":"2024-11-21T06:59:10","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25209\/"},"modified":"2024-11-21T14:59:10","modified_gmt":"2024-11-21T06:59:10","slug":"laravel-%e9%9b%86%e5%90%88%e4%b8%ad%e7%9a%84-where-%e6%96%b9%e6%b3%95%e7%94%a8%e6%b3%95%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25209\/","title":{"rendered":"Laravel \u96c6\u5408\u4e2d\u7684 Where \u65b9\u6cd5\u7528\u6cd5\u89e3\u6790"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/170998146519265.jpg\" class=\"aligncenter\" title=\"Laravel \u96c6\u5408\u4e2d\u7684 Where \u65b9\u6cd5\u7528\u6cd5\u89e3\u6790\u63d2\u56fe\" alt=\"Laravel \u96c6\u5408\u4e2d\u7684 Where \u65b9\u6cd5\u7528\u6cd5\u89e3\u6790\u63d2\u56fe\" \/><\/p>\n<p>Laravel \u662f\u4e00\u6b3e\u6d41\u884c\u7684 PHP \u5f00\u53d1\u6846\u67b6\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u4e14\u4fbf\u6377\u7684\u529f\u80fd\uff0c\u5176\u4e2d\u96c6\u5408(Collection)\u662f Laravel \u4e2d\u975e\u5e38\u91cd\u8981\u7684\u6570\u636e\u7ed3\u6784\u4e4b\u4e00\u3002\u96c6\u5408\u7c7b\u63d0\u4f9b\u4e86\u8bb8\u591a\u5f3a\u5927\u7684\u65b9\u6cd5\uff0c\u5176\u4e2d\u4e00\u4e2a\u5e38\u7528\u7684\u65b9\u6cd5\u662f where \u65b9\u6cd5\u3002\u672c\u6587\u5c06\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u89e3\u6790 Laravel \u96c6\u5408\u4e2d\u7684 where \u65b9\u6cd5\u7528\u6cd5\u3002<\/p>\n<h3>1. \u521b\u5efa\u96c6\u5408<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4e00\u4e9b\u6570\u636e\u7684\u96c6\u5408\u3002\u53ef\u4ee5\u4f7f\u7528 collect \u8f85\u52a9\u51fd\u6570\u6216\u8005\u5728\u6a21\u578b\u4e2d\u901a\u8fc7\u67e5\u8be2\u83b7\u53d6\u6570\u636e\u521b\u5efa\u96c6\u5408\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre>use IlluminateSupportCollection;\n\n$users = new Collection([\n    ['id' =&amp;gt; 1, 'name' =&amp;gt; 'Alice', 'age' =&amp;gt; 25],\n    ['id' =&amp;gt; 2, 'name' =&amp;gt; 'Bob', 'age' =&amp;gt; 30],\n    ['id' =&amp;gt; 3, 'name' =&amp;gt; 'Cathy', 'age' =&amp;gt; 28],\n]);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<h3>2. \u4f7f\u7528 where \u65b9\u6cd5\u7b5b\u9009\u6570\u636e<\/h3>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 where \u65b9\u6cd5\u5bf9\u96c6\u5408\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u7b5b\u9009\u3002where \u65b9\u6cd5\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u7b5b\u9009\u6761\u4ef6\u548c\u56de\u8c03\u51fd\u6570\u3002\u56de\u8c03\u51fd\u6570\u7528\u4e8e\u5b9a\u4e49\u7b5b\u9009\u903b\u8f91\uff0c\u8fd4\u56de true \u8868\u793a\u6570\u636e\u7b26\u5408\u6761\u4ef6\uff0c\u8fd4\u56de false \u8868\u793a\u6570\u636e\u4e0d\u7b26\u5408\u6761\u4ef6\u3002<\/p>\n<h4>\u793a\u4f8b1\uff1a\u6839\u636e\u5b57\u6bb5\u503c\u7b5b\u9009\u6570\u636e<\/h4>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u6839\u636e\u7528\u6237\u7684\u5e74\u9f84\u7b5b\u9009\u51fa\u5e74\u9f84\u5927\u4e8e\u7b49\u4e8e 28 \u5c81\u7684\u7528\u6237\uff1a<\/p>\n<pre>$filteredUsers = $users-&amp;gt;where('age', '&amp;gt;=', 28);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<h4>\u793a\u4f8b2\uff1a\u4f7f\u7528\u56de\u8c03\u51fd\u6570\u7b5b\u9009\u6570\u636e<\/h4>\n<p>\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528\u56de\u8c03\u51fd\u6570\u6765\u8fdb\u884c\u66f4\u590d\u6742\u7684\u7b5b\u9009\u3002\u4f8b\u5982\uff0c\u7b5b\u9009\u51fa\u540d\u5b57\u4ee5&#8217;A&#8217;\u5f00\u5934\u7684\u7528\u6237\uff1a<\/p>\n<pre>$filteredUsers = $users-&amp;gt;where(function ($user) {\n    return starts_with($user['name'], 'A');\n});<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<h3>3. \u83b7\u53d6\u7b5b\u9009\u7ed3\u679c<\/h3>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7 toArray \u65b9\u6cd5\u5c06\u7b5b\u9009\u540e\u7684\u7ed3\u679c\u8f6c\u4e3a\u6570\u7ec4\u8fdb\u884c\u8f93\u51fa\uff1a<\/p>\n<pre>$filteredUsersArray = $filteredUsers-&amp;gt;toArray();\ndd($filteredUsersArray);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<h3>\u7ed3\u8bed<\/h3>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u793a\u4f8b\uff0c\u6211\u4eec\u4e86\u89e3\u4e86 Laravel \u96c6\u5408\u4e2d where \u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\uff0c\u5305\u62ec\u6839\u636e\u5b57\u6bb5\u503c\u548c\u56de\u8c03\u51fd\u6570\u8fdb\u884c\u6570\u636e\u7b5b\u9009\uff0c\u4ee5\u53ca\u83b7\u53d6\u7b5b\u9009\u7ed3\u679c\u3002where \u65b9\u6cd5\u5728\u5f00\u53d1\u4e2d\u7ecf\u5e38\u7528\u5230\uff0c\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u9ad8\u6548\u5730\u5bf9\u6570\u636e\u8fdb\u884c\u7b5b\u9009\u548c\u5904\u7406\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fLaravel \u96c6\u5408\u4e2d\u7684 Where \u65b9\u6cd5\u7528\u6cd5\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":"<p>Laravel \u662f\u4e00\u6b3e\u6d41\u884c\u7684 PHP \u5f00\u53d1\u6846\u67b6\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u4e14\u4fbf\u6377\u7684\u529f\u80fd\uff0c\u5176\u4e2d\u96c6\u5408(Collection)\u662f Laravel \u4e2d\u975e\u5e38\u91cd\u8981\u7684\u6570\u636e\u7ed3\u6784\u4e4b\u4e00\u3002\u96c6\u5408\u7c7b\u63d0\u4f9b\u4e86\u8bb8\u591a\u5f3a\u5927\u7684\u65b9\u6cd5\uff0c\u5176\u4e2d\u4e00\u4e2a\u5e38\u7528\u7684\u65b9\u6cd5\u662f where \u65b9\u6cd5\u3002\u672c\u6587\u5c06\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u89e3\u6790 Laravel \u96c6\u5408\u4e2d\u7684 where \u65b9\u6cd5\u7528\u6cd5\u3002 1. \u521b\u5efa\u96c6\u5408 \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4e00\u4e9b\u6570\u636e\u7684\u96c6\u5408\u3002\u53ef\u4ee5\u4f7f\u7528 collect \u8f85\u52a9\u51fd\u6570\u6216\u8005\u5728\u6a21\u578b\u4e2d\u901a\u8fc7\u67e5\u8be2\u83b7\u53d6\u6570\u636e\u521b\u5efa\u96c6\u5408\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a use IlluminateSupportCollection; $users = new Collection([ [&#8216;id&#8217; =&amp;gt; 1, &#8216;name&#8217; =&amp;gt; &#8216;Alice&#8217;, &#8216;age&#8217; =&amp;gt; 25], [&#8216;id&#8217; =&amp;gt; 2, &#8216;name&#8217; =&amp;gt; &#8216;Bob&#8217;, &#8216;age&#8217; =&amp;gt; 30], [&#8216;id&#8217; =&amp;gt; 3, &#8216;name&#8217; =&amp;gt; &#8216;Cathy&#8217;, &#8216;age&#8217; =&amp;gt; 28], ]); \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 where [&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-25209","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25209","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=25209"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25209\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}