{"id":48446,"date":"2024-12-02T10:46:03","date_gmt":"2024-12-02T02:46:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48446\/"},"modified":"2024-12-02T10:46:03","modified_gmt":"2024-12-02T02:46:03","slug":"php%e8%87%aa%e5%ae%9a%e4%b9%89%e5%87%bd%e6%95%b0%e8%bf%94%e5%9b%9e%e5%80%bc%e7%b1%bb%e5%9e%8b%e5%92%8c%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48446\/","title":{"rendered":"PHP\u81ea\u5b9a\u4e49\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406"},"content":{"rendered":"

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

PHP\u81ea\u5b9a\u4e49\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406<\/h1>\n

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\u5b9a\u4e49 PHP \u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u53ef\u786e\u4fdd\u8fd4\u56de\u9884\u671f\u6570\u636e\u7c7b\u578b\uff0c\u5904\u7406\u8fd4\u56de\u503c\u9009\u9879\u5305\u62ec\uff1a\u663e\u5f0f\u8f6c\u6362\u3001\u6761\u4ef6\u68c0\u67e5\u3001\u5f02\u5e38\u5904\u7406\u3002\u4f8b\u5982\uff0c\u8ba1\u7b97\u5e73\u5747\u503c\u7684\u51fd\u6570\u901a\u8fc7\u9a8c\u8bc1\u8f93\u5165\u5e76\u5904\u7406\u65e0\u6548\u503c\u5c55\u793a\u4e86\u8fd4\u56de\u503c\u5904\u7406\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n

\"PHP\u81ea\u5b9a\u4e49\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406\u63d2\u56fe\"<\/p>\n

PHP \u81ea\u5b9a\u4e49\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406<\/strong><\/p>\n

\u5f15\u8a00<\/strong><\/p>\n

\u81ea\u5b9a\u4e49\u51fd\u6570\u662f PHP \u4e2d\u91cd\u8981\u7684\u5de5\u5177\uff0c\u5b83\u4eec\u5141\u8bb8\u60a8\u5c01\u88c5\u4ee3\u7801\u5e76\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u91cd\u7528\u6027\u3002\u4e86\u89e3\u5982\u4f55\u5b9a\u4e49\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406\u51fd\u6570\u8fd4\u56de\u7684\u503c\u53ef\u4ee5\u5e2e\u52a9\u60a8\u7f16\u5199\u66f4\u5065\u58ee\u548c\u66f4\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u3002<\/p>\n

\u5b9a\u4e49\u8fd4\u56de\u503c\u7c7b\u578b<\/strong><\/p>\n

\u60a8\u53ef\u4ee5\u4f7f\u7528 : <\/code> \u8bed\u6cd5\u6765\u5b9a\u4e49\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u3002\u8fd9\u6709\u52a9\u4e8e\u9759\u6001\u7c7b\u578b\u68c0\u67e5\u5de5\u5177\uff08\u5982 PHPStan\uff09\u786e\u4fdd\u51fd\u6570\u8fd4\u56de\u9884\u671f\u7c7b\u578b\u7684\u6570\u636e\u3002\u4f8b\u5982\uff1a<\/p>\n

function square(int $number): int\n{\n    return $number * $number;\n}<\/pre>\n
\u4e0a\u9762\u7684\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u6574\u578b\u53c2\u6570\u5e76\u8fd4\u56de\u4e00\u4e2a\u6574\u578b\u3002<\/p>\n
\u5904\u7406\u8fd4\u56de\u503c<\/strong><\/p>\n
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    \n
  • \u663e\u5f0f\u8f6c\u6362\uff1a<\/strong>\u4f7f\u7528 settype()<\/code> \u6216 intval()<\/code> \u51fd\u6570\u5c06\u503c\u8f6c\u6362\u4e3a\u6240\u9700\u7684\u7c7b\u578b\u3002<\/li>\n
  • \u6761\u4ef6\u68c0\u67e5\uff1a<\/strong>\u4f7f\u7528 if<\/code> \u8bed\u53e5\u6216 switch<\/code> \u8bed\u53e5\u68c0\u67e5\u8fd4\u56de\u503c\u5e76\u6839\u636e\u7c7b\u578b\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002<\/li>\n
  • \u5f02\u5e38\u5904\u7406\uff1a<\/strong>\u5982\u679c\u60a8\u671f\u671b\u51fd\u6570\u8fd4\u56de\u7279\u5b9a\u7c7b\u578b\u7684\u503c\uff0c\u4f46\u53d1\u73b0\u5b83\u8fd4\u56de\u4e86\u5176\u4ed6\u7c7b\u578b\u7684\u503c\uff0c\u60a8\u53ef\u4ee5\u629b\u51fa\u5f02\u5e38\u3002<\/li>\n<\/ul>\n
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    function average(array $numbers): float\n{\n    if (empty($numbers)) {\n        throw new InvalidArgumentException('Array must not be empty');\n    }\n\n    $sum = 0.0;\n    foreach ($numbers as $number) {\n        if (!is_numeric($number)) {\n            throw new InvalidArgumentException('Array must contain only numeric values');\n        }\n        $sum += (float) $number;\n    }\n\n    return $sum \/ count($numbers);\n}<\/pre>\n
    \u6b64\u51fd\u6570\u901a\u8fc7\u9a8c\u8bc1\u53c2\u6570\u5e76\u5904\u7406\u65e0\u6548\u7c7b\u578b\u7684\u503c\u6765\u5c55\u793a\u8fd4\u56de\u503c\u5904\u7406\u7684\u6700\u4f73\u5b9e\u8df5\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u6d6e\u70b9\u6570\uff0c\u5e76\u629b\u51fa\u5f02\u5e38\u6765\u5904\u7406\u9519\u8bef\u8f93\u5165\u3002<\/p>\n
    \u7ed3\u8bba<\/strong><\/p>\n
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    \u4eca\u5929\u5173\u4e8e\u300aPHP\u81ea\u5b9a\u4e49\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP\u81ea\u5b9a\u4e49\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406 \u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762\u7c73\u4e91\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300aPHP\u81ea\u5b9a\u4e49\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01 \u5b9a\u4e49 PHP \u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u53ef\u786e\u4fdd\u8fd4\u56de\u9884\u671f\u6570\u636e\u7c7b\u578b\uff0c\u5904\u7406\u8fd4\u56de\u503c\u9009\u9879\u5305\u62ec\uff1a\u663e\u5f0f\u8f6c\u6362\u3001\u6761\u4ef6\u68c0\u67e5\u3001\u5f02\u5e38\u5904\u7406\u3002\u4f8b\u5982\uff0c\u8ba1\u7b97\u5e73\u5747\u503c\u7684\u51fd\u6570\u901a\u8fc7\u9a8c\u8bc1\u8f93\u5165\u5e76\u5904\u7406\u65e0\u6548\u503c\u5c55\u793a\u4e86\u8fd4\u56de\u503c\u5904\u7406\u6700\u4f73\u5b9e\u8df5\u3002 PHP \u81ea\u5b9a\u4e49\u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406 \u5f15\u8a00 \u81ea\u5b9a\u4e49\u51fd\u6570\u662f PHP \u4e2d\u91cd\u8981\u7684\u5de5\u5177\uff0c\u5b83\u4eec\u5141\u8bb8\u60a8\u5c01\u88c5\u4ee3\u7801\u5e76\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u91cd\u7528\u6027\u3002\u4e86\u89e3\u5982\u4f55\u5b9a\u4e49\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u5904\u7406\u51fd\u6570\u8fd4\u56de\u7684\u503c\u53ef\u4ee5\u5e2e\u52a9\u60a8\u7f16\u5199\u66f4\u5065\u58ee\u548c\u66f4\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u3002 \u5b9a\u4e49\u8fd4\u56de\u503c\u7c7b\u578b \u60a8\u53ef\u4ee5\u4f7f\u7528 : \u8bed\u6cd5\u6765\u5b9a\u4e49\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u3002\u8fd9\u6709\u52a9\u4e8e\u9759\u6001\u7c7b\u578b\u68c0\u67e5\u5de5\u5177\uff08\u5982 PHPStan\uff09\u786e\u4fdd\u51fd\u6570\u8fd4\u56de\u9884\u671f\u7c7b\u578b\u7684\u6570\u636e\u3002\u4f8b\u5982\uff1a function square(int $number): int { return $number * $number; } \u4e0a\u9762\u7684\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u6574\u578b\u53c2\u6570\u5e76\u8fd4\u56de\u4e00\u4e2a\u6574\u578b\u3002 \u5904\u7406\u8fd4\u56de\u503c \u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5904\u7406\u51fd\u6570\u8fd4\u56de\u7684\u503c\uff1a \u663e\u5f0f\u8f6c\u6362\uff1a\u4f7f\u7528 settype() \u6216 intval() \u51fd\u6570\u5c06\u503c\u8f6c\u6362\u4e3a\u6240\u9700\u7684\u7c7b\u578b\u3002 \u6761\u4ef6\u68c0\u67e5\uff1a\u4f7f\u7528 if \u8bed\u53e5\u6216 switch \u8bed\u53e5\u68c0\u67e5\u8fd4\u56de\u503c\u5e76\u6839\u636e\u7c7b\u578b\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002 \u5f02\u5e38\u5904\u7406\uff1a\u5982\u679c\u60a8\u671f\u671b\u51fd\u6570\u8fd4\u56de\u7279\u5b9a\u7c7b\u578b\u7684\u503c\uff0c\u4f46\u53d1\u73b0\u5b83\u8fd4\u56de\u4e86\u5176\u4ed6\u7c7b\u578b\u7684\u503c\uff0c\u60a8\u53ef\u4ee5\u629b\u51fa\u5f02\u5e38\u3002 \u5b9e\u6218\u6848\u4f8b \u8003\u8651\u4ee5\u4e0b\u8ba1\u7b97\u5e73\u5747\u503c\u7684\u51fd\u6570\uff1a function average(array $numbers): float { if (empty($numbers)) { throw new InvalidArgumentException(‘Array must not […]<\/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-48446","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48446","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=48446"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48446\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}