{"id":49162,"date":"2024-12-02T12:58:36","date_gmt":"2024-12-02T04:58:36","guid":{"rendered":"https:\/\/fwq.ai\/blog\/49162\/"},"modified":"2024-12-02T12:58:36","modified_gmt":"2024-12-02T04:58:36","slug":"%e5%a6%82%e4%bd%95%e5%b0%86mongodb%e4%b8%ad%e7%9a%84substr%e8%bf%90%e7%ae%97%e7%ac%a6%e8%bd%ac%e6%8d%a2%e4%b8%baphp%e4%bb%a3%e7%a0%81%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/49162\/","title":{"rendered":"\u5982\u4f55\u5c06MongoDB\u4e2d\u7684$substr\u8fd0\u7b97\u7b26\u8f6c\u6362\u4e3aPHP\u4ee3\u7801\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u5c06MongoDB\u4e2d\u7684$substr\u8fd0\u7b97\u7b26\u8f6c\u6362\u4e3aPHP\u4ee3\u7801\uff1f<\/h1>\n

\u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\u7c73\u4e91\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u5982\u4f55\u5c06MongoDB\u4e2d\u7684$substr\u8fd0\u7b97\u7b26\u8f6c\u6362\u4e3aPHP\u4ee3\u7801\uff1f\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

\"\u5982\u4f55\u5c06MongoDB\u4e2d\u7684$substr\u8fd0\u7b97\u7b26\u8f6c\u6362\u4e3aPHP\u4ee3\u7801\uff1f\u63d2\u56fe\"<\/p>\n

mongodb\u4e2d\u7684$substr\u8f6c\u6362\u4e3aphp<\/strong><\/p>\n

\u5728mongodb\u4e2d\uff0c$substr\u8fd0\u7b97\u7b26\u53ef\u4ee5\u4ece\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u5b50\u5b57\u7b26\u4e32\u3002\u4e3a\u4e86\u5c06\u6b64\u8fd0\u7b97\u7b26\u8f6c\u6362\u4e3aphp\uff0c\u53ef\u4ee5\u4f7f\u7528substr\u51fd\u6570\u3002<\/p>\n

\u793a\u4f8b\uff1a\u5c06mongodb\u65e5\u671f\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3aphp<\/strong><\/p>\n

\u5047\u8bbemongodb\u6587\u6863\u4e2d\u5b58\u50a8\u7684\u65e5\u671f\u4e3a\u5b57\u7b26\u4e32\u683c\u5f0f\uff0c\u4f8b\u5982\u201c2014-07-09 09:00:00\u201d\u3002\u8981\u5c06\u5176\u8f6c\u6362\u4e3aphp\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n

$mongodate = '2014-07-09 09:00:00';\n$phpdate = substr($mongodate, 0, 10); \/\/ \u53d6\u524d10\u4e2a\u5b57\u7b26<\/pre>\n
\u8fd9\u5c06\u8fd4\u56de\u4e00\u4e2aphp\u65e5\u671f\u5b57\u7b26\u4e32\u201c2014-07-09\u201d\u3002<\/p>\n
\u793a\u4f8b\uff1a\u6bcf\u65e5\u6536\u5165\u6c47\u603b<\/strong><\/p>\n
\u8981\u6c47\u603b\u6bcf\u5929\u7684\u6536\u5165\uff0c\u53ef\u4ee5\u4f7f\u7528php\u4e2d\u7684aggregate\u51fd\u6570\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
$aggregate = $mongoCollection->aggregate([\n    [\n        '$project' => [\n            'date' => ['$substr' => ['$time_start', 0, 10]],\n            'income' => 1,\n        ],\n    ],\n    [\n        '$group' => [\n            '_id' => ['$date' => '$date'],\n            'sumincome' => ['$sum' => '$income'],\n        ],\n    ],\n]);<\/pre>\n
\u6b64\u4ee3\u7801\u5c06\u6309\u65e5\u671f\u5bf9\u6536\u5165\u8fdb\u884c\u5206\u7ec4\uff0c\u5e76\u8ba1\u7b97\u6bcf\u4e00\u5929\u7684\u603b\u6536\u5165\u3002<\/p>\n
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\u5982\u4f55\u5c06MongoDB\u4e2d\u7684$substr\u8fd0\u7b97\u7b26\u8f6c\u6362\u4e3aPHP\u4ee3\u7801\uff1f \u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\u7c73\u4e91\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u5982\u4f55\u5c06MongoDB\u4e2d\u7684$substr\u8fd0\u7b97\u7b26\u8f6c\u6362\u4e3aPHP\u4ee3\u7801\uff1f\u300b\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01 mongodb\u4e2d\u7684$substr\u8f6c\u6362\u4e3aphp \u5728mongodb\u4e2d\uff0c$substr\u8fd0\u7b97\u7b26\u53ef\u4ee5\u4ece\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u5b50\u5b57\u7b26\u4e32\u3002\u4e3a\u4e86\u5c06\u6b64\u8fd0\u7b97\u7b26\u8f6c\u6362\u4e3aphp\uff0c\u53ef\u4ee5\u4f7f\u7528substr\u51fd\u6570\u3002 \u793a\u4f8b\uff1a\u5c06mongodb\u65e5\u671f\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3aphp \u5047\u8bbemongodb\u6587\u6863\u4e2d\u5b58\u50a8\u7684\u65e5\u671f\u4e3a\u5b57\u7b26\u4e32\u683c\u5f0f\uff0c\u4f8b\u5982\u201c2014-07-09 09:00:00\u201d\u3002\u8981\u5c06\u5176\u8f6c\u6362\u4e3aphp\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a $mongodate = ‘2014-07-09 09:00:00’; $phpdate = substr($mongodate, 0, 10); \/\/ \u53d6\u524d10\u4e2a\u5b57\u7b26 \u8fd9\u5c06\u8fd4\u56de\u4e00\u4e2aphp\u65e5\u671f\u5b57\u7b26\u4e32\u201c2014-07-09\u201d\u3002 \u793a\u4f8b\uff1a\u6bcf\u65e5\u6536\u5165\u6c47\u603b \u8981\u6c47\u603b\u6bcf\u5929\u7684\u6536\u5165\uff0c\u53ef\u4ee5\u4f7f\u7528php\u4e2d\u7684aggregate\u51fd\u6570\uff0c\u5982\u4e0b\u6240\u793a\uff1a $aggregate = $mongoCollection->aggregate([ [ ‘$project’ => [ ‘date’ => [‘$substr’ => [‘$time_start’, 0, 10]], ‘income’ => 1, ], ], [ ‘$group’ => [ ‘_id’ => [‘$date’ => ‘$date’], ‘sumincome’ => [‘$sum’ => ‘$income’], ], […]<\/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-49162","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/49162","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=49162"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/49162\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=49162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=49162"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=49162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}