{"id":25232,"date":"2024-11-21T13:17:45","date_gmt":"2024-11-21T05:17:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25232\/"},"modified":"2024-11-21T13:17:45","modified_gmt":"2024-11-21T05:17:45","slug":"laravel-%e9%9b%86%e5%90%88%e7%9a%84-where-%e6%96%b9%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25232\/","title":{"rendered":"Laravel \u96c6\u5408\u7684 Where \u65b9\u6cd5\u8be6\u89e3"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/171004878449478.jpg\" class=\"aligncenter\" title=\"Laravel \u96c6\u5408\u7684 Where \u65b9\u6cd5\u8be6\u89e3\u63d2\u56fe\" alt=\"Laravel \u96c6\u5408\u7684 Where \u65b9\u6cd5\u8be6\u89e3\u63d2\u56fe\" \/><\/p>\n<p>Laravel \u662f\u4e00\u6b3e\u6d41\u884c\u7684 PHP \u6846\u67b6\uff0c\u5176\u96c6\u5408\uff08Collections\uff09\u7c7b\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u636e\u5904\u7406\u529f\u80fd\u3002\u5176\u4e2d\uff0cWhere \u65b9\u6cd5\u662f\u96c6\u5408\u7c7b\u4e2d\u5e38\u7528\u7684\u65b9\u6cd5\u4e4b\u4e00\uff0c\u7528\u4e8e\u7b5b\u9009\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd Laravel \u96c6\u5408\u7684 Where \u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u65b9\u6cd5\u3001\u53c2\u6570\u542b\u4e49\u4ee5\u53ca\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<h3>\u4e00\u3001Where \u65b9\u6cd5\u6982\u8ff0<\/h3>\n<p>Where \u65b9\u6cd5\u7528\u4e8e\u7b5b\u9009\u96c6\u5408\u4e2d\u7b26\u5408\u6307\u5b9a\u6761\u4ef6\u7684\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u96c6\u5408\u3002\u5176\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>$filtered = $collection-&amp;gt;where($key, $value);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>$key \u8868\u793a\u8981\u7b5b\u9009\u7684\u5b57\u6bb5\u6216\u952e\u540d<\/li>\n<li>$value \u8868\u793a\u8981\u7b5b\u9009\u7684\u503c<\/li>\n<\/ul>\n<h3>\u4e8c\u3001Where \u65b9\u6cd5\u4f7f\u7528\u793a\u4f8b<\/h3>\n<p>\u5047\u8bbe\u6709\u4e00\u4e2a\u7528\u6237\u96c6\u5408 $users\uff0c\u5305\u542b\u591a\u4e2a\u7528\u6237\u7684\u4fe1\u606f\uff0c\u6211\u4eec\u8981\u7b5b\u9009\u51fa\u5e74\u9f84\u5927\u4e8e 18 \u5c81\u7684\u7528\u6237\uff0c\u53ef\u4ee5\u4f7f\u7528 Where \u65b9\u6cd5\u8fdb\u884c\u7b5b\u9009\uff1a<\/p>\n<pre>$users = collect([\n    ['name' =&amp;gt; 'Alice', 'age' =&amp;gt; 20],\n    ['name' =&amp;gt; 'Bob', 'age' =&amp;gt; 16],\n    ['name' =&amp;gt; 'Charlie', 'age' =&amp;gt; 25],\n]);\n\n$filteredUsers = $users-&amp;gt;where('age', '&amp;gt;', 18);\n\n\/\/ \u8f93\u51fa\u7b5b\u9009\u540e\u7684\u7528\u6237\u4fe1\u606f\n$filteredUsers-&amp;gt;each(function ($user) {\n    echo \"Name: \" . $user['name'] . \", Age: \" . $user['age'] . PHP_EOL;\n});<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7 where \u65b9\u6cd5\u7b5b\u9009\u51fa\u4e86\u5e74\u9f84\u5927\u4e8e 18 \u5c81\u7684\u7528\u6237\uff0c\u5e76\u5c06\u7b5b\u9009\u7ed3\u679c\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u4e0a\u3002<\/p>\n<h3>\u4e09\u3001Where \u65b9\u6cd5\u7684\u5176\u4ed6\u7528\u6cd5<\/h3>\n<p>\u9664\u4e86\u4e0a\u8ff0\u7b80\u5355\u7684\u7528\u6cd5\u5916\uff0cWhere \u65b9\u6cd5\u8fd8\u652f\u6301\u95ed\u5305\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u7b5b\u9009\u903b\u8f91\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u6839\u636e\u7528\u6237\u89d2\u8272\u7b5b\u9009\u7528\u6237\u7684\u793a\u4f8b\uff1a<\/p>\n<pre>$users = collect([\n    ['name' =&amp;gt; 'Alice', 'role' =&amp;gt; 'admin'],\n    ['name' =&amp;gt; 'Bob', 'role' =&amp;gt; 'user'],\n    ['name' =&amp;gt; 'Charlie', 'role' =&amp;gt; 'admin'],\n]);\n\n$filteredAdmins = $users-&amp;gt;where(function ($user) {\n    return $user['role'] === 'admin';\n});\n\n\/\/ \u8f93\u51fa\u7b5b\u9009\u540e\u7684\u7ba1\u7406\u5458\u4fe1\u606f\n$filteredAdmins-&amp;gt;each(function ($user) {\n    echo \"Name: \" . $user['name'] . \", Role: \" . $user['role'] . PHP_EOL;\n});<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u95ed\u5305\u51fd\u6570\u4f5c\u4e3a Where \u65b9\u6cd5\u7684\u53c2\u6570\uff0c\u7b5b\u9009\u51fa\u4e86\u7528\u6237\u89d2\u8272\u4e3a\u7ba1\u7406\u5458\uff08&#8217;admin&#8217;\uff09\u7684\u7528\u6237\u3002<\/p>\n<h3>\u56db\u3001\u603b\u7ed3<\/h3>\n<p>\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230 Laravel \u96c6\u5408\u7684 Where \u65b9\u6cd5\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u636e\u7b5b\u9009\u5de5\u5177\uff0c\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u5404\u79cd\u590d\u6742\u7684\u7b5b\u9009\u903b\u8f91\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u5408\u7406\u4f7f\u7528 Where \u65b9\u6cd5\u80fd\u591f\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6548\u7387\uff0c\u4e3a\u6570\u636e\u5904\u7406\u63d0\u4f9b\u4fbf\u5229\u3002<\/p>\n<p>\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u4e86\u89e3 Laravel \u96c6\u5408\u7684 Where \u65b9\u6cd5\u6709\u6240\u5e2e\u52a9\uff0c\u540c\u65f6\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u591a\u52a0\u5c1d\u8bd5\uff0c\u53d1\u6398\u66f4\u591a\u96c6\u5408\u65b9\u6cd5\u7684\u7528\u6cd5\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fLaravel \u96c6\u5408\u7684 Where \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":"<p>Laravel \u662f\u4e00\u6b3e\u6d41\u884c\u7684 PHP \u6846\u67b6\uff0c\u5176\u96c6\u5408\uff08Collections\uff09\u7c7b\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u636e\u5904\u7406\u529f\u80fd\u3002\u5176\u4e2d\uff0cWhere \u65b9\u6cd5\u662f\u96c6\u5408\u7c7b\u4e2d\u5e38\u7528\u7684\u65b9\u6cd5\u4e4b\u4e00\uff0c\u7528\u4e8e\u7b5b\u9009\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd Laravel \u96c6\u5408\u7684 Where \u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u65b9\u6cd5\u3001\u53c2\u6570\u542b\u4e49\u4ee5\u53ca\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001Where \u65b9\u6cd5\u6982\u8ff0 Where \u65b9\u6cd5\u7528\u4e8e\u7b5b\u9009\u96c6\u5408\u4e2d\u7b26\u5408\u6307\u5b9a\u6761\u4ef6\u7684\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u96c6\u5408\u3002\u5176\u8bed\u6cd5\u5982\u4e0b\uff1a $filtered = $collection-&amp;gt;where($key, $value); \u767b\u5f55\u540e\u590d\u5236 $key \u8868\u793a\u8981\u7b5b\u9009\u7684\u5b57\u6bb5\u6216\u952e\u540d $value \u8868\u793a\u8981\u7b5b\u9009\u7684\u503c \u4e8c\u3001Where \u65b9\u6cd5\u4f7f\u7528\u793a\u4f8b \u5047\u8bbe\u6709\u4e00\u4e2a\u7528\u6237\u96c6\u5408 $users\uff0c\u5305\u542b\u591a\u4e2a\u7528\u6237\u7684\u4fe1\u606f\uff0c\u6211\u4eec\u8981\u7b5b\u9009\u51fa\u5e74\u9f84\u5927\u4e8e 18 \u5c81\u7684\u7528\u6237\uff0c\u53ef\u4ee5\u4f7f\u7528 Where \u65b9\u6cd5\u8fdb\u884c\u7b5b\u9009\uff1a $users = collect([ [&#8216;name&#8217; =&amp;gt; &#8216;Alice&#8217;, &#8216;age&#8217; =&amp;gt; 20], [&#8216;name&#8217; =&amp;gt; &#8216;Bob&#8217;, &#8216;age&#8217; =&amp;gt; 16], [&#8216;name&#8217; =&amp;gt; &#8216;Charlie&#8217;, &#8216;age&#8217; =&amp;gt; 25], ]); $filteredUsers = $users-&amp;gt;where(&#8216;age&#8217;, [&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-25232","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25232","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=25232"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25232\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}