{"id":48346,"date":"2024-12-02T11:35:46","date_gmt":"2024-12-02T03:35:46","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48346\/"},"modified":"2024-12-02T11:35:46","modified_gmt":"2024-12-02T03:35:46","slug":"php-%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86%e6%9c%ba%e5%88%b6%e5%af%b9%e5%87%bd%e6%95%b0%e6%80%a7%e8%83%bd%e7%9a%84%e5%bd%b1%e5%93%8d%e5%92%8c%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48346\/","title":{"rendered":"PHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\u548c\u4f18\u5316"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\u548c\u4f18\u5316<\/h1>\n<p>\u7c73\u4e91\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP 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\u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\uff1a\u503c\u590d\u5236\u4f1a\u589e\u52a0\u6267\u884c\u65f6\u95f4\u3002\u5f15\u7528\u4f20\u9012\u53ef\u907f\u514d\u503c\u590d\u5236\uff0c\u4f46\u987b\u6ce8\u610f\u5185\u5b58\u6cc4\u6f0f\u3002\u95ed\u5305\u4f1a\u4fdd\u6301\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\uff0c\u5bfc\u81f4\u5185\u5b58\u6d88\u8017\u3002\u5faa\u73af\u4e2d\u591a\u6b21\u58f0\u660e\u53d8\u91cf\u4f1a\u9020\u6210\u4e0d\u5fc5\u8981\u7684\u5185\u5b58\u5206\u914d\u3002\u4f18\u5316\u6280\u5de7\uff1a\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u5927\u578b\u53d8\u91cf\u3002\u8c28\u614e\u4f7f\u7528\u95ed\u5305\u3002\u4f7f\u7528\u5c40\u90e8\u53d8\u91cf\u3002\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u53d8\u91cf\u5206\u914d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730015511671df117bfb3a.jpg\" class=\"aligncenter\" title=\"PHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\u548c\u4f18\u5316\u63d2\u56fe\" alt=\"PHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\u548c\u4f18\u5316\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd<\/strong><\/p>\n<p>PHP \u4f7f\u7528 zval \u6570\u636e\u7ed3\u6784\u6765\u5b58\u50a8\u53d8\u91cf\uff0c\u5b83\u7531\u7c7b\u578b\u3001\u503c\u548c\u5f15\u7528\u8ba1\u6570\u5668\u7ec4\u6210\u3002<\/p>\n<p><strong>\u5f71\u54cd\u51fd\u6570\u6027\u80fd\u7684\u56e0\u7d20<\/strong><\/p>\n<ul>\n<li><strong>\u503c\u590d\u5236\uff1a<\/strong>\u5f53\u4e00\u4e2a\u53d8\u91cf\u4f20\u9012\u7ed9\u51fd\u6570\u65f6\uff0c\u5176\u503c\u5c06\u88ab\u590d\u5236\u5230\u65b0\u7684\u5185\u5b58\u4f4d\u7f6e\uff0c\u8fd9\u4f1a\u589e\u52a0\u6267\u884c\u65f6\u95f4\u3002<\/li>\n<li><strong>\u5f15\u7528\u4f20\u9012\uff1a<\/strong>\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u53d8\u91cf\u53ef\u4ee5\u907f\u514d\u503c\u590d\u5236\uff0c\u4f46\u5982\u679c\u4e0d\u5c0f\u5fc3\uff0c\u5f88\u5bb9\u6613\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002<\/li>\n<li><strong>\u95ed\u5305\uff1a<\/strong>\u95ed\u5305\u4f1a\u6355\u83b7\u5916\u90e8\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u8fd9\u4e9b\u53d8\u91cf\u4e0d\u518d\u4f7f\u7528\uff0c\u4e5f\u4f1a\u4fdd\u6301\u5bf9\u5b83\u4eec\u7684\u5f15\u7528\uff0c\u5bfc\u81f4\u5185\u5b58\u6d88\u8017\u3002<\/li>\n<li><strong>\u5faa\u73af\u53d8\u91cf\uff1a<\/strong>\u5728\u5faa\u73af\u4e2d\u591a\u6b21\u58f0\u660e\u53d8\u91cf\u53ef\u4ee5\u5bfc\u81f4\u4e0d\u5fc5\u8981\u7684\u5185\u5b58\u5206\u914d\u3002<\/li>\n<\/ul>\n<p><strong>\u4f18\u5316\u6280\u5de7<\/strong><\/p>\n<ul>\n<li><strong>\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u5927\u578b\u53d8\u91cf\uff1a<\/strong>\u5bf9\u4e8e\u5927\u578b\u6570\u7ec4\u548c\u5bf9\u8c61\uff0c\u4f20\u9012\u5f15\u7528\u6bd4\u503c\u590d\u5236\u6548\u7387\u66f4\u9ad8\u3002<\/li>\n<li><strong>\u5c0f\u5fc3\u95ed\u5305\uff1a<\/strong>\u53ea\u5728\u9700\u8981\u65f6\u4f7f\u7528\u95ed\u5305\uff0c\u5e76\u786e\u4fdd\u5728\u95ed\u5305\u89e3\u9664\u5f15\u7528\u540e\u6e05\u9664\u53d8\u91cf\u7684\u5f15\u7528\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5c40\u90e8\u53d8\u91cf\uff1a<\/strong>\u5c3d\u53ef\u80fd\u4f7f\u7528\u5c40\u90e8\u53d8\u91cf\uff0c\u56e0\u4e3a\u5b83\u4eec\u5728\u51fd\u6570\u9000\u51fa\u65f6\u4f1a\u81ea\u52a8\u91ca\u653e\u3002<\/li>\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u53d8\u91cf\u5206\u914d\uff1a<\/strong>\u53ea\u6709\u5728\u9700\u8981\u65f6\u624d\u58f0\u660e\u53d8\u91cf\uff0c\u5e76\u5728\u4e0d\u518d\u4f7f\u7528\u65f6\u91ca\u653e\u5f15\u7528\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<pre>\/\/ \u4e0d\u4f18\u5316\nfunction sumArray($arr) {\n    $sum = 0;\n    foreach ($arr as $value) {\n        $sum += $value;\n    }\n    return $sum;\n}\n\n\/\/ \u4f18\u5316\u540e\nfunction sumArrayOptimized($arr) {\n    $sum = 0;\n    foreach ($arr as &amp;$value) { \/\/ \u4f20\u9012\u5f15\u7528\n        $sum += $value;\n    }\n    return $sum;\n}\n\n$arr = range(1, 10000);\n$time1 = microtime(true);\nsumArray($arr);\n$time2 = microtime(true);\n$diff1 = $time2 - $time1;\n\n$time1 = microtime(true);\nsumArrayOptimized($arr);\n$time2 = microtime(true);\n$diff2 = $time2 - $time1;\n\necho \"\u4e0d\u4f18\u5316\uff1a$diff1 \u79d2&lt;br&gt;\";\necho \"\u4f18\u5316\u540e\uff1a$diff2 \u79d2&lt;br&gt;\";<\/pre>\n<p><strong>\u7ed3\u679c<\/strong><\/p>\n<p><code>sumArrayOptimized()<\/code> \u6bd4 <code>sumArray()<\/code> \u5feb <strong>10 \u500d\u4ee5\u4e0a<\/strong>\u3002<\/p>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aPHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\u548c\u4f18\u5316\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\u548c\u4f18\u5316 \u7c73\u4e91\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u300aPHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\u548c\u4f18\u5316\u300b\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01 PHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd\uff1a\u503c\u590d\u5236\u4f1a\u589e\u52a0\u6267\u884c\u65f6\u95f4\u3002\u5f15\u7528\u4f20\u9012\u53ef\u907f\u514d\u503c\u590d\u5236\uff0c\u4f46\u987b\u6ce8\u610f\u5185\u5b58\u6cc4\u6f0f\u3002\u95ed\u5305\u4f1a\u4fdd\u6301\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\uff0c\u5bfc\u81f4\u5185\u5b58\u6d88\u8017\u3002\u5faa\u73af\u4e2d\u591a\u6b21\u58f0\u660e\u53d8\u91cf\u4f1a\u9020\u6210\u4e0d\u5fc5\u8981\u7684\u5185\u5b58\u5206\u914d\u3002\u4f18\u5316\u6280\u5de7\uff1a\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u5927\u578b\u53d8\u91cf\u3002\u8c28\u614e\u4f7f\u7528\u95ed\u5305\u3002\u4f7f\u7528\u5c40\u90e8\u53d8\u91cf\u3002\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u53d8\u91cf\u5206\u914d\u3002 PHP \u5185\u5b58\u7ba1\u7406\u673a\u5236\u5bf9\u51fd\u6570\u6027\u80fd\u7684\u5f71\u54cd PHP \u4f7f\u7528 zval \u6570\u636e\u7ed3\u6784\u6765\u5b58\u50a8\u53d8\u91cf\uff0c\u5b83\u7531\u7c7b\u578b\u3001\u503c\u548c\u5f15\u7528\u8ba1\u6570\u5668\u7ec4\u6210\u3002 \u5f71\u54cd\u51fd\u6570\u6027\u80fd\u7684\u56e0\u7d20 \u503c\u590d\u5236\uff1a\u5f53\u4e00\u4e2a\u53d8\u91cf\u4f20\u9012\u7ed9\u51fd\u6570\u65f6\uff0c\u5176\u503c\u5c06\u88ab\u590d\u5236\u5230\u65b0\u7684\u5185\u5b58\u4f4d\u7f6e\uff0c\u8fd9\u4f1a\u589e\u52a0\u6267\u884c\u65f6\u95f4\u3002 \u5f15\u7528\u4f20\u9012\uff1a\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u53d8\u91cf\u53ef\u4ee5\u907f\u514d\u503c\u590d\u5236\uff0c\u4f46\u5982\u679c\u4e0d\u5c0f\u5fc3\uff0c\u5f88\u5bb9\u6613\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002 \u95ed\u5305\uff1a\u95ed\u5305\u4f1a\u6355\u83b7\u5916\u90e8\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u8fd9\u4e9b\u53d8\u91cf\u4e0d\u518d\u4f7f\u7528\uff0c\u4e5f\u4f1a\u4fdd\u6301\u5bf9\u5b83\u4eec\u7684\u5f15\u7528\uff0c\u5bfc\u81f4\u5185\u5b58\u6d88\u8017\u3002 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\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u53d8\u91cf\u5206\u914d\uff1a\u53ea\u6709\u5728\u9700\u8981\u65f6\u624d\u58f0\u660e\u53d8\u91cf\uff0c\u5e76\u5728\u4e0d\u518d\u4f7f\u7528\u65f6\u91ca\u653e\u5f15\u7528\u3002 \u5b9e\u6218\u6848\u4f8b \/\/ \u4e0d\u4f18\u5316 function sumArray($arr) { $sum = 0; foreach ($arr as $value) { $sum += $value; } return $sum; } \/\/ \u4f18\u5316\u540e function sumArrayOptimized($arr) { $sum = 0; foreach ($arr as &amp;$value) 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