{"id":47902,"date":"2024-12-02T08:55:03","date_gmt":"2024-12-02T00:55:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47902\/"},"modified":"2024-12-02T08:55:03","modified_gmt":"2024-12-02T00:55:03","slug":"php%e5%87%bd%e6%95%b0%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%e4%b8%8e%e5%b8%b8%e8%a7%81%e8%af%af%e5%8c%ba%e5%89%96%e6%9e%90","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47902\/","title":{"rendered":"php\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>php\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790<\/h1>\n<p>\u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300aphp\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p>\u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u6709\u610f\u4e49\u7684\u51fd\u6570\u540d\u79f0\u4fdd\u6301\u51fd\u6570\u7b80\u77ed\u4f7f\u7528\u53c2\u6570\u9ed8\u8ba4\u503c\u4f7f\u7528\u7c7b\u578b\u6ce8\u89e3\u5904\u7406\u5f02\u5e38\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\u5e38\u89c1\u8bef\u533a\uff1a\u8fc7\u591a\u51fd\u6570\u53c2\u6570\u8fd4\u56de\u591a\u4e2a\u503c\u5168\u5c40\u53d8\u91cf\u6ca1\u6709\u9519\u8bef\u5904\u7406\u8fc7\u5ea6\u5d4c\u5957<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729941887671cd17f008c2.jpg\" class=\"aligncenter\" title=\"php\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790\u63d2\u56fe\" alt=\"php\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790<\/strong><\/p>\n<p>\u5728 PHP \u5f00\u53d1\u4e2d\uff0c\u51fd\u6570\u662f\u7ec4\u7ec7\u4ee3\u7801\u548c\u63d0\u9ad8\u53ef\u590d\u7528\u6027\u7684\u5173\u952e\u5143\u7d20\u3002\u867d\u7136\u51fd\u6570\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5982\u679c\u6ca1\u6709\u9075\u5faa\u6700\u4f73\u5b9e\u8df5\uff0c\u4e5f\u53ef\u80fd\u5bfc\u81f4\u96be\u4ee5\u7ef4\u62a4\u548c\u6548\u7387\u4f4e\u4e0b\u7684\u4ee3\u7801\u3002<\/p>\n<p><strong>\u6700\u4f73\u5b9e\u8df5\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u6709\u610f\u4e49\u7684\u51fd\u6570\u540d\u79f0\uff1a<\/strong> \u51fd\u6570\u540d\u79f0\u5e94\u6e05\u695a\u5730\u8bf4\u660e\u51fd\u6570\u7684\u76ee\u7684\uff0c\u4f8b\u5982 <code>calculateDiscount()<\/code> \u6216 <code>validateEmail()<\/code>.<\/li>\n<li><strong>\u4fdd\u6301\u51fd\u6570\u7b80\u77ed\uff1a<\/strong> \u51fd\u6570\u5e94\u5c3d\u53ef\u80fd\u7b80\u77ed\uff0c\u6bcf\u9879\u4efb\u52a1\u4e00\u4e2a\u51fd\u6570\u3002\u5982\u679c\u51fd\u6570\u53d8\u5f97\u592a\u957f\uff0c\u5e94\u5c06\u5176\u5206\u89e3\u4e3a\u8f83\u5c0f\u7684\u51fd\u6570\u3002<\/li>\n<li><strong>\u4f7f\u7528\u53c2\u6570\u9ed8\u8ba4\u503c\uff1a<\/strong> \u4e3a\u53c2\u6570\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u53ef\u7b80\u5316\u51fd\u6570\u8c03\u7528\u5e76\u63d0\u9ad8\u7075\u6d3b\u6027\u3002<\/li>\n<li><strong>\u4f7f\u7528\u7c7b\u578b\u6ce8\u89e3\uff1a<\/strong> \u5728\u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u4e0a\u4f7f\u7528\u7c7b\u578b\u6ce8\u89e3\u53ef\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<li><strong>\u5904\u7406\u5f02\u5e38\uff1a<\/strong> \u51fd\u6570\u5e94\u6b63\u786e\u5904\u7406\u5f02\u5e38\uff0c\u5305\u62ec\u8bb0\u5f55\u9519\u8bef\u548c\u8fd4\u56de\u9002\u5f53\u7684\u9519\u8bef\u4ee3\u7801\u3002<\/li>\n<li><strong>\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\uff1a<\/strong> \u4e3a\u51fd\u6570\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\u4ee5\u9a8c\u8bc1\u5176\u6b63\u786e\u6027\u548c\u884c\u4e3a\u3002<\/li>\n<\/ul>\n<p><strong>\u5e38\u89c1\u8bef\u533a\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u8fc7\u591a\u51fd\u6570\u53c2\u6570\uff1a<\/strong> \u51fd\u6570\u5e94\u8be5\u53ea\u63a5\u53d7\u5fc5\u9700\u7684\u53c2\u6570\uff0c\u907f\u514d\u521b\u5efa\u5177\u6709\u5197\u957f\u53c2\u6570\u5217\u8868\u7684\u51fd\u6570\u3002<\/li>\n<li><strong>\u8fd4\u56de\u591a\u4e2a\u503c\uff1a<\/strong> \u51fd\u6570\u4e0d\u5e94\u8fd4\u56de\u591a\u4e2a\u503c\u3002\u5982\u679c\u9700\u8981\u8fd4\u56de\u591a\u4e2a\u503c\uff0c\u5e94\u4f7f\u7528\u5173\u8054\u6570\u7ec4\u6216\u81ea\u5b9a\u4e49\u5bf9\u8c61\u3002<\/li>\n<li><strong>\u5168\u5c40\u53d8\u91cf\uff1a<\/strong> \u51fd\u6570\u5e94\u907f\u514d\u4f9d\u8d56\u4e8e\u5168\u5c40\u53d8\u91cf\uff0c\u56e0\u4e3a\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u96be\u4ee5\u8ddf\u8e2a\u548c\u7ef4\u62a4\u7684\u4ee3\u7801\u3002<\/li>\n<li><strong>\u6ca1\u6709\u9519\u8bef\u5904\u7406\uff1a<\/strong> \u51fd\u6570\u5e94\u6b63\u786e\u5904\u7406\u9519\u8bef\uff0c\u907f\u514d\u51fa\u73b0\u672a\u5904\u7406\u7684\u5f02\u5e38\u3002<\/li>\n<li><strong>\u8fc7\u5ea6\u5d4c\u5957\uff1a<\/strong> \u51fd\u6570\u4e0d\u5e94\u9ad8\u5ea6\u5d4c\u5957\u3002 excessive nesting \u53ef\u80fd\u4f1a\u4f7f\u4ee3\u7801\u96be\u4ee5\u9605\u8bfb\u548c\u7406\u89e3\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5c55\u793a\u6700\u4f73\u5b9e\u8df5\u548c\u907f\u514d\u5e38\u89c1\u8bef\u533a\u7684 PHP \u51fd\u6570\u793a\u4f8b\uff1a<\/p>\n<pre>function calculateDiscount(float $price, float $discountPercentage = 0.1): float\n{\n    return $price - ($price * $discountPercentage);\n}<\/pre>\n<ul>\n<li>\u8fd9\u4e2a\u51fd\u6570\u6709\u4e00\u4e2a\u6709\u610f\u4e49\u7684\u540d\u79f0 (<code>calculateDiscount<\/code>)\uff0c\u7b80\u77ed\u800c\u7b80\u6d01\u3002<\/li>\n<li>\u5b83\u6709\u4e00\u4e2a\u53ef\u9009\u7684\u53c2\u6570 <code>$discountPercentage<\/code>\uff0c\u5177\u6709\u9ed8\u8ba4\u503c 0.1\u3002<\/li>\n<li>\u5b83\u4f7f\u7528\u7c7b\u578b\u6ce8\u89e3\u6765\u6307\u5b9a\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u7c7b\u578b\u3002<\/li>\n<li>\u5b83\u6b63\u786e\u5730\u5904\u7406\u9519\u8bef\uff0c\u5982\u679c <code>$price<\/code> \u4e0d\u662f\u4e00\u4e2a\u6570\u5b57\uff0c\u5219\u8fd4\u56de null \u503c\u3002<\/li>\n<\/ul>\n<p>\u9075\u5faa\u8fd9\u4e9b\u6700\u4f73\u5b9e\u8df5\u548c\u907f\u514d\u5e38\u89c1\u8bef\u533a\u5bf9\u4e8e\u7f16\u5199\u53ef\u7ef4\u62a4\u3001\u9ad8\u6548\u4e14\u6613\u4e8e\u9605\u8bfb\u7684 PHP \u4ee3\u7801\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aphp\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>php\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790 \u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300aphp\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002 \u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u6709\u610f\u4e49\u7684\u51fd\u6570\u540d\u79f0\u4fdd\u6301\u51fd\u6570\u7b80\u77ed\u4f7f\u7528\u53c2\u6570\u9ed8\u8ba4\u503c\u4f7f\u7528\u7c7b\u578b\u6ce8\u89e3\u5904\u7406\u5f02\u5e38\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\u5e38\u89c1\u8bef\u533a\uff1a\u8fc7\u591a\u51fd\u6570\u53c2\u6570\u8fd4\u56de\u591a\u4e2a\u503c\u5168\u5c40\u53d8\u91cf\u6ca1\u6709\u9519\u8bef\u5904\u7406\u8fc7\u5ea6\u5d4c\u5957 PHP \u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u4e0e\u5e38\u89c1\u8bef\u533a\u5256\u6790 \u5728 PHP \u5f00\u53d1\u4e2d\uff0c\u51fd\u6570\u662f\u7ec4\u7ec7\u4ee3\u7801\u548c\u63d0\u9ad8\u53ef\u590d\u7528\u6027\u7684\u5173\u952e\u5143\u7d20\u3002\u867d\u7136\u51fd\u6570\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5982\u679c\u6ca1\u6709\u9075\u5faa\u6700\u4f73\u5b9e\u8df5\uff0c\u4e5f\u53ef\u80fd\u5bfc\u81f4\u96be\u4ee5\u7ef4\u62a4\u548c\u6548\u7387\u4f4e\u4e0b\u7684\u4ee3\u7801\u3002 \u6700\u4f73\u5b9e\u8df5\uff1a \u4f7f\u7528\u6709\u610f\u4e49\u7684\u51fd\u6570\u540d\u79f0\uff1a \u51fd\u6570\u540d\u79f0\u5e94\u6e05\u695a\u5730\u8bf4\u660e\u51fd\u6570\u7684\u76ee\u7684\uff0c\u4f8b\u5982 calculateDiscount() \u6216 validateEmail(). \u4fdd\u6301\u51fd\u6570\u7b80\u77ed\uff1a \u51fd\u6570\u5e94\u5c3d\u53ef\u80fd\u7b80\u77ed\uff0c\u6bcf\u9879\u4efb\u52a1\u4e00\u4e2a\u51fd\u6570\u3002\u5982\u679c\u51fd\u6570\u53d8\u5f97\u592a\u957f\uff0c\u5e94\u5c06\u5176\u5206\u89e3\u4e3a\u8f83\u5c0f\u7684\u51fd\u6570\u3002 \u4f7f\u7528\u53c2\u6570\u9ed8\u8ba4\u503c\uff1a \u4e3a\u53c2\u6570\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u53ef\u7b80\u5316\u51fd\u6570\u8c03\u7528\u5e76\u63d0\u9ad8\u7075\u6d3b\u6027\u3002 \u4f7f\u7528\u7c7b\u578b\u6ce8\u89e3\uff1a \u5728\u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u4e0a\u4f7f\u7528\u7c7b\u578b\u6ce8\u89e3\u53ef\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002 \u5904\u7406\u5f02\u5e38\uff1a 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