{"id":25239,"date":"2024-11-21T10:19:21","date_gmt":"2024-11-21T02:19:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25239\/"},"modified":"2024-11-21T10:19:21","modified_gmt":"2024-11-21T02:19:21","slug":"laravel-%e9%9b%86%e5%90%88%e4%b8%ad%e7%9a%84-where-%e6%96%b9%e6%b3%95%e5%ae%9e%e7%94%a8%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25239\/","title":{"rendered":"Laravel \u96c6\u5408\u4e2d\u7684 Where \u65b9\u6cd5\u5b9e\u7528\u6307\u5357"},"content":{"rendered":"

\"Laravel<\/p>\n

Laravel \u96c6\u5408\u4e2d\u7684 Where \u65b9\u6cd5\u5b9e\u7528\u6307\u5357<\/h1>\n

\u5728Laravel\u6846\u67b6\u7684\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u96c6\u5408\uff08Collection\uff09\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u636e\u3002\u5176\u4e2d\uff0cWhere\u65b9\u6cd5\u662f\u4e00\u4e2a\u5e38\u7528\u7684\u7b5b\u9009\u65b9\u6cd5\uff0c\u80fd\u591f\u6839\u636e\u6307\u5b9a\u6761\u4ef6\u6765\u8fc7\u6ee4\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u3002\u672c\u6587\u5c06\u4ecb\u7ecdLaravel\u96c6\u5408\u4e2dWhere\u65b9\u6cd5\u7684\u4f7f\u7528\uff0c\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u6f14\u793a\u5176\u7528\u6cd5\u3002<\/p>\n

1. \u57fa\u672c\u7528\u6cd5<\/h2>\n

Where\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u662f\u4f20\u5165\u4e00\u4e2a\u95ed\u5305\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u63a5\u53d7\u96c6\u5408\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u4f5c\u4e3a\u53c2\u6570\uff0c\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\u6765\u5224\u65ad\u662f\u5426\u4fdd\u7559\u8be5\u5143\u7d20\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u57fa\u672c\u7684\u793a\u4f8b\uff1a<\/p>\n

use IlluminateSupportCollection;\n\n$collection = new Collection([1, 2, 3, 4, 5]);\n\n$filtered = $collection-&gt;where(function($value, $key) {\n    return $value &gt; 2;\n});\n\n\/\/ \u8f93\u51fa\u88ab\u4fdd\u7559\u7684\u5143\u7d20\n$filtered-&gt;all(); \/\/ [3, 4, 5]<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542b1\u52305\u7684\u96c6\u5408\uff0c\u7136\u540e\u4f7f\u7528Where\u65b9\u6cd5\u8fc7\u6ee4\u51fa\u5927\u4e8e2\u7684\u5143\u7d20\u3002<\/p>\n
2. \u6307\u5b9a\u952e\u540d\u8fc7\u6ee4<\/h2>\n
\u9664\u4e86\u4f20\u5165\u95ed\u5305\u51fd\u6570\u5916\uff0cWhere\u65b9\u6cd5\u8fd8\u652f\u6301\u901a\u8fc7\u952e\u540d\u8fc7\u6ee4\uff0c\u5373\u4f20\u5165\u952e\u540d\u548c\u76f8\u5e94\u7684\u503c\u8fdb\u884c\u7b5b\u9009\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n
$collection = new Collection([\n    'name' =&gt; 'Alice',\n    'age' =&gt; 25,\n    'gender' =&gt; 'female'\n]);\n\n$filtered = $collection-&gt;where('gender', 'female');\n\n\/\/ \u8f93\u51fa\u7b5b\u9009\u7ed3\u679c\n$filtered-&gt;all(); \/\/ ['gender' =&gt; 'female']<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5173\u8054\u6570\u7ec4\u96c6\u5408\uff0c\u5e76\u4f7f\u7528Where\u65b9\u6cd5\u6839\u636e\u952e\u540d\u8fc7\u6ee4\u51fa\u7b26\u5408\u6761\u4ef6\u7684\u5143\u7d20\u3002<\/p>\n
3. \u591a\u6761\u4ef6\u7b5b\u9009<\/h2>\n
\u5982\u679c\u9700\u8981\u540c\u65f6\u6ee1\u8db3\u591a\u4e2a\u6761\u4ef6\u8fdb\u884c\u7b5b\u9009\uff0c\u53ef\u4ee5\u5728\u95ed\u5305\u51fd\u6570\u4e2d\u8fdb\u884c\u903b\u8f91\u5224\u65ad\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n
$collection = new Collection([\n    ['name' =&gt; 'Alice', 'age' =&gt; 25],\n    ['name' =&gt; 'Bob', 'age' =&gt; 30],\n    ['name' =&gt; 'Charlie', 'age' =&gt; 20]\n]);\n\n$filtered = $collection-&gt;where(function($item, $key) {\n    return $item['age'] &gt; 25 &amp;&amp; strpos($item['name'], 'B') !== false;\n});\n\n\/\/ \u8f93\u51fa\u7b5b\u9009\u7ed3\u679c\n$filtered-&gt;all(); \/\/ [['name' =&gt; 'Bob', 'age' =&gt; 30]]<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5173\u8054\u6570\u7ec4\u7684\u96c6\u5408\uff0c\u5e76\u4f7f\u7528Where\u65b9\u6cd5\u7b5b\u9009\u51fa\u5e74\u9f84\u5927\u4e8e25\u4e14\u540d\u5b57\u4e2d\u5305\u542b’B’\u7684\u5143\u7d20\u3002<\/p>\n
4. \u7ed3\u5408\u5176\u4ed6\u65b9\u6cd5<\/h2>\n
Where\u65b9\u6cd5\u8fd8\u53ef\u4ee5\u4e0e\u5176\u4ed6\u96c6\u5408\u65b9\u6cd5\u7ed3\u5408\u4f7f\u7528\uff0c\u5b9e\u73b0\u66f4\u7075\u6d3b\u7684\u6570\u636e\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5148\u4f7f\u7528Where\u65b9\u6cd5\u7b5b\u9009\u5143\u7d20\uff0c\u7136\u540e\u518d\u5bf9\u7ed3\u679c\u8fdb\u884c\u5176\u4ed6\u64cd\u4f5c\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n
$collection = new Collection([\n    ['name' =&gt; 'Alice', 'age' =&gt; 25],\n    ['name' =&gt; 'Bob', 'age' =&gt; 30],\n    ['name' =&gt; 'Charlie', 'age' =&gt; 20]\n]);\n\n$filtered = $collection-&gt;where('age', '&gt;', 25)-&gt;map(function($item, $key) {\n    return strtoupper($item['name']);\n});\n\n\/\/ \u8f93\u51fa\u5904\u7406\u540e\u7684\u7ed3\u679c\n$filtered-&gt;all(); \/\/ ['BOB']<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528Where\u65b9\u6cd5\u7b5b\u9009\u51fa\u5e74\u9f84\u5927\u4e8e25\u7684\u5143\u7d20\uff0c\u7136\u540e\u4f7f\u7528Map\u65b9\u6cd5\u5bf9\u7ed3\u679c\u8fdb\u884c\u5904\u7406\uff0c\u5c06\u540d\u5b57\u8f6c\u6362\u4e3a\u5927\u5199\u3002<\/p>\n
\u7ed3\u8bed<\/h2>\n
\u901a\u8fc7\u4ee5\u4e0a\u793a\u4f8b\uff0c\u6211\u4eec\u4e86\u89e3\u4e86Laravel\u96c6\u5408\u4e2dWhere\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u548c\u5b9e\u7528\u6307\u5357\u3002Where\u65b9\u6cd5\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u65b9\u4fbf\u5730\u5bf9\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u7b5b\u9009\uff0c\u63d0\u9ad8\u6570\u636e\u64cd\u4f5c\u7684\u7075\u6d3b\u6027\u548c\u6548\u7387\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528Laravel\u96c6\u5408\u4e2d\u7684Where\u65b9\u6cd5\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fLaravel \u96c6\u5408\u4e2d\u7684 Where \u65b9\u6cd5\u5b9e\u7528\u6307\u5357\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 \u96c6\u5408\u4e2d\u7684 Where \u65b9\u6cd5\u5b9e\u7528\u6307\u5357 \u5728Laravel\u6846\u67b6\u7684\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u96c6\u5408\uff08Collection\uff09\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u636e\u3002\u5176\u4e2d\uff0cWhere\u65b9\u6cd5\u662f\u4e00\u4e2a\u5e38\u7528\u7684\u7b5b\u9009\u65b9\u6cd5\uff0c\u80fd\u591f\u6839\u636e\u6307\u5b9a\u6761\u4ef6\u6765\u8fc7\u6ee4\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u3002\u672c\u6587\u5c06\u4ecb\u7ecdLaravel\u96c6\u5408\u4e2dWhere\u65b9\u6cd5\u7684\u4f7f\u7528\uff0c\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u6f14\u793a\u5176\u7528\u6cd5\u3002 1. \u57fa\u672c\u7528\u6cd5 Where\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u662f\u4f20\u5165\u4e00\u4e2a\u95ed\u5305\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u63a5\u53d7\u96c6\u5408\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u4f5c\u4e3a\u53c2\u6570\uff0c\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\u6765\u5224\u65ad\u662f\u5426\u4fdd\u7559\u8be5\u5143\u7d20\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u57fa\u672c\u7684\u793a\u4f8b\uff1a use IlluminateSupportCollection; $collection = new Collection([1, 2, 3, 4, 5]); $filtered = $collection-&gt;where(function($value, $key) { return $value &gt; 2; }); \/\/ \u8f93\u51fa\u88ab\u4fdd\u7559\u7684\u5143\u7d20 $filtered-&gt;all(); \/\/ [3, 4, 5] \u767b\u5f55\u540e\u590d\u5236 \u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542b1\u52305\u7684\u96c6\u5408\uff0c\u7136\u540e\u4f7f\u7528Where\u65b9\u6cd5\u8fc7\u6ee4\u51fa\u5927\u4e8e2\u7684\u5143\u7d20\u3002 2. \u6307\u5b9a\u952e\u540d\u8fc7\u6ee4 \u9664\u4e86\u4f20\u5165\u95ed\u5305\u51fd\u6570\u5916\uff0cWhere\u65b9\u6cd5\u8fd8\u652f\u6301\u901a\u8fc7\u952e\u540d\u8fc7\u6ee4\uff0c\u5373\u4f20\u5165\u952e\u540d\u548c\u76f8\u5e94\u7684\u503c\u8fdb\u884c\u7b5b\u9009\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a $collection = new Collection([ ‘name’ =&gt; ‘Alice’, ‘age’ =&gt; 25, ‘gender’ =&gt; ‘female’ ]); $filtered […]<\/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-25239","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25239","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=25239"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25239\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}