{"id":24999,"date":"2024-11-21T15:21:41","date_gmt":"2024-11-21T07:21:41","guid":{"rendered":"https:\/\/fwq.ai\/blog\/24999\/"},"modified":"2024-11-21T15:21:41","modified_gmt":"2024-11-21T07:21:41","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8workerman%e5%ae%9e%e7%8e%b0%e5%9f%ba%e4%ba%8e%e5%8d%8f%e5%90%8c%e8%bf%87%e6%bb%a4%e7%9a%84%e7%94%b5%e5%bd%b1%e6%8e%a8%e8%8d%90%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/24999\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Workerman\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/169934276139197.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u4f7f\u7528Workerman\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf\u63d2\u56fe\" alt=\"\u5982\u4f55\u4f7f\u7528Workerman\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf\u63d2\u56fe\" \/><\/p>\n<p>\u968f\u7740\u4e92\u8054\u7f51\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u7f51\u7ad9\u548c\u5e94\u7528\u5f00\u59cb\u6ce8\u91cd\u7528\u6237\u4f53\u9a8c\u548c\u4e2a\u6027\u5316\u63a8\u8350\u3002\u63a8\u8350\u7cfb\u7edf\u662f\u5176\u4e2d\u6781\u5176\u91cd\u8981\u7684\u4e00\u73af\uff0c\u5b83\u80fd\u591f\u6839\u636e\u7528\u6237\u7684\u5386\u53f2\u884c\u4e3a\u548c\u504f\u597d\uff0c\u4e3a\u7528\u6237\u63a8\u8350\u6700\u7b26\u5408\u5176\u5174\u8da3\u7684\u5185\u5bb9\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u7528Workerman\u6846\u67b6\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf\u3002<\/p>\n<p>\u4e00\u3001\u534f\u540c\u8fc7\u6ee4\u7b97\u6cd5<\/p>\n<p>\u534f\u540c\u8fc7\u6ee4\u662f\u63a8\u8350\u7cfb\u7edf\u4e2d\u6700\u5e38\u7528\u7684\u7b97\u6cd5\u4e4b\u4e00\uff0c\u5b83\u57fa\u4e8e\u7528\u6237\u5386\u53f2\u884c\u4e3a\u548c\u504f\u597d\uff0c\u9884\u6d4b\u7528\u6237\u5bf9\u672a\u77e5\u7269\u54c1\u7684\u8bc4\u5206\u6216\u8005\u662f\u5426\u4f1a\u559c\u6b22\u8fd9\u4e2a\u7269\u54c1\u3002\u534f\u540c\u8fc7\u6ee4\u7b97\u6cd5\u7684\u57fa\u672c\u601d\u60f3\u662f\uff0c\u53d1\u73b0\u7528\u6237\u4e4b\u95f4\u7684\u76f8\u4f3c\u6027\u548c\u7269\u54c1\u4e4b\u95f4\u7684\u76f8\u4f3c\u6027\u3002\u5176\u4e2d\uff0c\u7528\u6237\u4e4b\u95f4\u7684\u76f8\u4f3c\u6027\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u7528\u6237\u5386\u53f2\u8bc4\u5206\u7684\u76f8\u4f3c\u5ea6\u6765\u5b9e\u73b0\uff0c\u7269\u54c1\u4e4b\u95f4\u7684\u76f8\u4f3c\u6027\u5219\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u4e0d\u540c\u7528\u6237\u5bf9\u4e0d\u540c\u7269\u54c1\u7684\u8bc4\u5206\u6765\u5b9e\u73b0\u3002<\/p>\n<p>\u4e8c\u3001Workerman\u6846\u67b6\u7b80\u4ecb<\/p>\n<p>Workerman\u662f\u4e00\u4e2a\u7eafPHP\u5f00\u53d1\u7684\u9ad8\u6027\u80fd\u7f51\u7edc\u901a\u4fe1\u6846\u67b6\uff0c\u5b83\u91c7\u7528\u5f02\u6b65\u975e\u963b\u585eIO\u6a21\u578b\uff0c\u5177\u6709\u9ad8\u5e76\u53d1\u3001\u9ad8\u6027\u80fd\u3001\u4f4e\u8017\u80fd\u7b49\u7279\u70b9\uff0c\u53ef\u4ee5\u5904\u7406\u5927\u91cf\u7684\u9ad8\u5e76\u53d1\u957f\u8fde\u63a5\uff0c\u53ef\u7528\u4e8e\u5b9e\u73b0\u5206\u5e03\u5f0f\u3001\u5373\u65f6\u901a\u8baf\u3001\u7f51\u7edc\u6e38\u620f\u3001\u7269\u8054\u7f51\u7b49\u573a\u666f\u3002<\/p>\n<p>\u4e09\u3001\u4f7f\u7528Workerman\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf<\/p>\n<ol>\n<li>\u6570\u636e\u51c6\u5907<\/li>\n<\/ol>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u51c6\u5907\u597d\u7535\u5f71\u8bc4\u5206\u6570\u636e\u96c6\uff0c\u6570\u636e\u96c6\u5305\u542b\u7528\u6237ID\u3001\u7535\u5f71ID\u548c\u7528\u6237\u5bf9\u7535\u5f71\u7684\u8bc4\u5206\u3002\u6570\u636e\u96c6\u53ef\u4ee5\u4eceMovieLens\u7f51\u7ad9\u4e0a\u4e0b\u8f7d\uff0c\u4f8b\u5982\u4e0b\u8f7dml-100k.zip\u5305\uff0c\u89e3\u538b\u540e\u53ef\u4ee5\u5f97\u5230u.data\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u5305\u542b\u4e86100000\u4e2a\u8bc4\u5206\u8bb0\u5f55\u3002\u6570\u636e\u96c6\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre>UserID | MovieID | Rating | Timestamp\n---------------------------------------\n   196  |    242  |      3 | 881250949\n   186  |    302  |      3 | 891717742\n   196  |    377  |      1 | 878887116\n...\n<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5efa\u7acb\u7528\u6237\u8bc4\u5206\u6a21\u578b<\/li>\n<\/ol>\n<p>\u6839\u636e\u7535\u5f71\u8bc4\u5206\u6570\u636e\u96c6\uff0c\u6211\u4eec\u53ef\u4ee5\u5efa\u7acb\u7528\u6237\u8bc4\u5206\u6a21\u578b\uff0c\u8be5\u6a21\u578b\u53ef\u4ee5\u6839\u636e\u7528\u6237ID\u67e5\u8be2\u8be5\u7528\u6237\u5bf9\u6240\u6709\u7535\u5f71\u7684\u8bc4\u5206\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7528\u6237\u8bc4\u5206\u6a21\u578b\u793a\u4f8b\uff1a<\/p>\n<pre>class UserModel\n{\n    public static function getRatings($userId)\n    {\n        $ratings = array();\n        $file = fopen('u.data', 'r');\n        while (($line = fgets($file)) !== false) {\n            $data = explode(\"    \", trim($line));\n            if ($userId == $data[0]) {\n                $ratings[$data[1]] = $data[2]; \/\/ \u8bb0\u5f55\u8be5\u7528\u6237\u5bf9\u8be5\u7535\u5f71\u7684\u8bc4\u5206\n            }\n        }\n        fclose($file);\n        return $ratings;\n    }\n}\n<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5efa\u7acb\u534f\u540c\u8fc7\u6ee4\u6a21\u578b<\/li>\n<\/ol>\n<p>\u6839\u636e\u5efa\u7acb\u7684\u7528\u6237\u8bc4\u5206\u6a21\u578b\uff0c\u6211\u4eec\u53ef\u4ee5\u5efa\u7acb\u534f\u540c\u8fc7\u6ee4\u6a21\u578b\uff0c\u8be5\u6a21\u578b\u53ef\u4ee5\u6839\u636e\u7528\u6237\u5386\u53f2\u8bc4\u5206\uff0c\u9884\u6d4b\u8be5\u7528\u6237\u5bf9\u672a\u77e5\u7535\u5f71\u7684\u8bc4\u5206\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u534f\u540c\u8fc7\u6ee4\u6a21\u578b\u793a\u4f8b\uff1a<\/p>\n<pre>class CFModel\n{\n    public static function predictRating($userId, $movieId)\n    {\n        $simUsers = array(); \/\/ \u76f8\u4f3c\u7528\u6237ID\u5217\u8868\n        $simValues = array(); \/\/ \u76f8\u4f3c\u503c\u5217\u8868\n        $ratings1 = UserModel::getRatings($userId);\n        if (empty($ratings1)) {\n            return 0;\n        }\n        $file = fopen('u.data', 'r');\n        while (($line = fgets($file)) !== false) {\n            $data = explode(\"    \", trim($line));\n            if ($userId != $data[0] &amp;amp;&amp;amp; $movieId == $data[1]) { \/\/ \u5982\u679c\u4e0d\u662f\u5f53\u524d\u7528\u6237\u4e14\u7535\u5f71\u76f8\u540c\n                $ratings2 = UserModel::getRatings($data[0]);\n                if (!empty($ratings2)) { \/\/ \u5982\u679c\u76f8\u4f3c\u7528\u6237\u6709\u8bc4\u5206\u8bb0\u5f55\n                    $sim = self::similarity($ratings1, $ratings2); \/\/ \u8ba1\u7b97\u76f8\u4f3c\u5ea6\n                    if ($sim &amp;gt; 0) { \/\/ \u5982\u679c\u76f8\u4f3c\u5ea6\u5927\u4e8e0\n                        $simUsers[] = $data[0];\n                        $simValues[] = $sim;\n                    }\n                }\n            }\n        }\n        fclose($file);\n        if (empty($simUsers)) {\n            return 0;\n        }\n        arsort($simValues); \/\/ \u6309\u76f8\u4f3c\u5ea6\u4ece\u9ad8\u5230\u4f4e\u6392\u5e8f\n        $simUsers = array_slice($simUsers, 0, 10); \/\/ \u53d6\u76f8\u4f3c\u5ea6\u6700\u9ad8\u768410\u4e2a\u7528\u6237\n        $simValues = array_slice($simValues, 0, 10); \/\/ \u53d6\u76f8\u4f3c\u5ea6\u6700\u9ad8\u768410\u4e2a\u7528\u6237\u7684\u76f8\u4f3c\u5ea6\u503c\n        $sum = 0;\n        $weight = 0;\n        foreach ($simUsers as $k =&amp;gt; $simUser) {\n            $rating = UserModel::getRatings($simUser)[$movieId]; \/\/ \u83b7\u53d6\u76f8\u4f3c\u7528\u6237\u5bf9\u8be5\u7535\u5f71\u7684\u8bc4\u5206\n            $sum += $simValues[$k] * $rating; \/\/ \u8ba1\u7b97\u8bc4\u5206\u603b\u548c\n            $weight += $simValues[$k]; \/\/ \u8ba1\u7b97\u6743\u91cd\u603b\u548c\n        }\n        return round($sum \/ $weight); \/\/ \u8ba1\u7b97\u5e73\u5747\u8bc4\u5206\n    }\n\n    public static function similarity($ratings1, $ratings2)\n    {\n        $commonKeys = array_keys(array_intersect_key($ratings1, $ratings2));\n        if (empty($commonKeys)) {\n            return 0;\n        }\n        $diff1 = $diff2 = 0;\n        foreach ($commonKeys as $key) {\n            $diff1 += ($ratings1[$key] - $ratings2[$key]) ** 2;\n            $diff2 += ($ratings1[$key] - $ratings2[$key]) ** 2;\n        }\n        return $diff1 \/ sqrt($diff2);\n    }\n}\n<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5efa\u7acb\u63a8\u8350\u7cfb\u7edf\u670d\u52a1<\/li>\n<\/ol>\n<p>\u57fa\u4e8e\u4e0a\u8ff0\u534f\u540c\u8fc7\u6ee4\u6a21\u578b\uff0c\u6211\u4eec\u53ef\u4ee5\u5efa\u7acb\u4e00\u4e2a\u63a8\u8350\u7cfb\u7edf\u670d\u52a1\uff0c\u8be5\u670d\u52a1\u53ef\u4ee5\u63a5\u6536\u7528\u6237ID\u548c\u7535\u5f71ID\u4f5c\u4e3a\u53c2\u6570\uff0c\u8fd4\u56de\u8be5\u7528\u6237\u5bf9\u8be5\u7535\u5f71\u7684\u9884\u6d4b\u8bc4\u5206\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u63a8\u8350\u7cfb\u7edf\u670d\u52a1\u793a\u4f8b\uff1a<\/p>\n<pre>use WorkermanProtocolsHttpRequest;\nuse WorkermanProtocolsHttpResponse;\nuse WorkermanWorker;\n\nrequire_once __DIR__ . '\/vendor\/autoload.php';\n\n$http_worker = new Worker(\"http:\/\/0.0.0.0:8888\");\n\n$http_worker-&amp;gt;onMessage = function(Request $request, Response $response) {\n    $userId = $request-&amp;gt;get('userId');\n    $movieId = $request-&amp;gt;get('movieId');\n    $rating = CFModel::predictRating($userId, $movieId);\n    $response-&amp;gt;header('Content-Type', 'application\/json');\n    $response-&amp;gt;end(json_encode(array('rating' =&amp;gt; $rating)));\n};\n\nWorker::runAll();\n<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u6d4b\u8bd5\u63a8\u8350\u7cfb\u7edf\u670d\u52a1<\/li>\n<\/ol>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u53d1\u9001HTTP\u8bf7\u6c42\u6765\u6d4b\u8bd5\u63a8\u8350\u7cfb\u7edf\u670d\u52a1\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>http:\/\/localhost:8888?userId=1&amp;amp;movieId=1\n<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8be5\u8bf7\u6c42\u5c06\u8fd4\u56de\u4e00\u4e2aJSON\u683c\u5f0f\u7684\u54cd\u5e94\uff0c\u5305\u542b\u8be5\u7528\u6237\u5bf9\u8be5\u7535\u5f71\u7684\u9884\u6d4b\u8bc4\u5206\u3002<\/p>\n<p>\u56db\u3001\u603b\u7ed3<\/p>\n<p>\u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528Workerman\u6846\u67b6\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf\uff0c\u8be5\u7cfb\u7edf\u53ef\u4ee5\u6839\u636e\u7528\u6237\u5386\u53f2\u884c\u4e3a\u548c\u504f\u597d\uff0c\u9884\u6d4b\u8be5\u7528\u6237\u5bf9\u672a\u77e5\u7535\u5f71\u7684\u8bc4\u5206\u3002\u4ee3\u7801\u793a\u4f8b\u53ea\u662f\u4e00\u79cd\u7b80\u5355\u7684\u5b9e\u73b0\u65b9\u5f0f\uff0c\u5b9e\u9645\u5e94\u7528\u4e2d\u8fd8\u9700\u8981\u8003\u8651\u8bf8\u591a\u56e0\u7d20\uff0c\u5982\u6570\u636e\u89c4\u6a21\u3001\u7b97\u6cd5\u4f18\u5316\u3001\u6a21\u578b\u8bad\u7ec3\u7b49\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5bf9\u8bfb\u8005\u7406\u89e3\u548c\u5b9e\u73b0\u63a8\u8350\u7cfb\u7edf\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528Workerman\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf\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>\u968f\u7740\u4e92\u8054\u7f51\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u7f51\u7ad9\u548c\u5e94\u7528\u5f00\u59cb\u6ce8\u91cd\u7528\u6237\u4f53\u9a8c\u548c\u4e2a\u6027\u5316\u63a8\u8350\u3002\u63a8\u8350\u7cfb\u7edf\u662f\u5176\u4e2d\u6781\u5176\u91cd\u8981\u7684\u4e00\u73af\uff0c\u5b83\u80fd\u591f\u6839\u636e\u7528\u6237\u7684\u5386\u53f2\u884c\u4e3a\u548c\u504f\u597d\uff0c\u4e3a\u7528\u6237\u63a8\u8350\u6700\u7b26\u5408\u5176\u5174\u8da3\u7684\u5185\u5bb9\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u7528Workerman\u6846\u67b6\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf\u3002 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\u4e8c\u3001Workerman\u6846\u67b6\u7b80\u4ecb Workerman\u662f\u4e00\u4e2a\u7eafPHP\u5f00\u53d1\u7684\u9ad8\u6027\u80fd\u7f51\u7edc\u901a\u4fe1\u6846\u67b6\uff0c\u5b83\u91c7\u7528\u5f02\u6b65\u975e\u963b\u585eIO\u6a21\u578b\uff0c\u5177\u6709\u9ad8\u5e76\u53d1\u3001\u9ad8\u6027\u80fd\u3001\u4f4e\u8017\u80fd\u7b49\u7279\u70b9\uff0c\u53ef\u4ee5\u5904\u7406\u5927\u91cf\u7684\u9ad8\u5e76\u53d1\u957f\u8fde\u63a5\uff0c\u53ef\u7528\u4e8e\u5b9e\u73b0\u5206\u5e03\u5f0f\u3001\u5373\u65f6\u901a\u8baf\u3001\u7f51\u7edc\u6e38\u620f\u3001\u7269\u8054\u7f51\u7b49\u573a\u666f\u3002 \u4e09\u3001\u4f7f\u7528Workerman\u5b9e\u73b0\u57fa\u4e8e\u534f\u540c\u8fc7\u6ee4\u7684\u7535\u5f71\u63a8\u8350\u7cfb\u7edf \u6570\u636e\u51c6\u5907 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\u6839\u636e\u7535\u5f71\u8bc4\u5206\u6570\u636e\u96c6\uff0c\u6211\u4eec\u53ef\u4ee5\u5efa\u7acb\u7528\u6237\u8bc4\u5206\u6a21\u578b\uff0c\u8be5\u6a21\u578b\u53ef\u4ee5\u6839\u636e\u7528\u6237ID\u67e5\u8be2\u8be5\u7528\u6237\u5bf9\u6240\u6709\u7535\u5f71\u7684\u8bc4\u5206\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7528\u6237\u8bc4\u5206\u6a21\u578b\u793a\u4f8b\uff1a class UserModel { public static function getRatings($userId) { $ratings = array(); $file = fopen(&#8216;u.data&#8217;, 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