{"id":47898,"date":"2024-12-02T11:43:30","date_gmt":"2024-12-02T03:43:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47898\/"},"modified":"2024-12-02T11:43:30","modified_gmt":"2024-12-02T03:43:30","slug":"php-%e5%87%bd%e6%95%b0%e4%b8%ad%e5%91%bd%e5%90%8d%e5%8f%82%e6%95%b0%e7%9a%84%e4%bd%bf%e7%94%a8%e5%a6%82%e4%bd%95%e5%a2%9e%e5%bc%ba%e7%b1%bb%e5%9e%8b%e6%a3%80%e6%9f%a5%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47898\/","title":{"rendered":"PHP \u51fd\u6570\u4e2d\u547d\u540d\u53c2\u6570\u7684\u4f7f\u7528\u5982\u4f55\u589e\u5f3a\u7c7b\u578b\u68c0\u67e5\uff1f"},"content":{"rendered":"

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

PHP \u51fd\u6570\u4e2d\u547d\u540d\u53c2\u6570\u7684\u4f7f\u7528\u5982\u4f55\u589e\u5f3a\u7c7b\u578b\u68c0\u67e5\uff1f<\/h1>\n

\u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aPHP \u51fd\u6570\u4e2d\u547d\u540d\u53c2\u6570\u7684\u4f7f\u7528\u5982\u4f55\u589e\u5f3a\u7c7b\u578b\u68c0\u67e5\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

<\/p>\n

PHP \u7684\u547d\u540d\u53c2\u6570\u5141\u8bb8\u5728\u53c2\u6570\u540d\u79f0\u4e4b\u524d\u6307\u5b9a\u7c7b\u578b\uff0c\u589e\u5f3a\u4e86\u7c7b\u578b\u68c0\u67e5\u529f\u80fd\u3002\u5b83\u5f3a\u5236\u6267\u884c\u53c2\u6570\u7c7b\u578b\uff0c\u901a\u8fc7\u6307\u5b9a $foo \u4e3a\u6574\u6570\u3001$bar \u4e3a\u5b57\u7b26\u4e32\uff0c\u51fd\u6570 myFunction \u53ef\u4e25\u683c\u68c0\u67e5\u53c2\u6570\uff0c\u907f\u514d\u4e86\u4f20\u9012\u9519\u8bef\u7c7b\u578b\u7684\u9519\u8bef\u3002\u547d\u540d\u53c2\u6570\u5728\u5b9e\u6218\u4e2d\u63d0\u4f9b\u4e86\u660e\u786e\u7684\u7c7b\u578b\u63d0\u793a\uff0c\u63d0\u9ad8\u4ee3\u7801\u8d28\u91cf\u3001\u51cf\u5c11\u9519\u8bef\uff0c\u786e\u4fdd\u53c2\u6570\u7b26\u5408\u9884\u671f\u3002<\/p>\n

\"PHP<\/p>\n

PHP \u51fd\u6570\u4e2d\u547d\u540d\u53c2\u6570\uff1a\u63d0\u5347\u7c7b\u578b\u68c0\u67e5\u80fd\u529b<\/strong><\/p>\n

\u7b80\u4ecb<\/strong><\/p>\n

PHP \u7684\u547d\u540d\u53c2\u6570\u5141\u8bb8\u51fd\u6570\u5728\u53c2\u6570\u540d\u79f0\u4e4b\u524d\u4f7f\u7528\u7c7b\u578b\u63d0\u793a\u3002\u8fd9\u5bf9\u4e8e\u52a0\u5f3a\u7c7b\u578b\u68c0\u67e5\u3001\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u51cf\u5c11\u9519\u8bef\u975e\u5e38\u6709\u7528\u3002<\/p>\n

\u8bed\u6cd5<\/strong><\/p>\n

function myFunction(int $foo, string $bar): void\n{\n    \/\/ ...\n}<\/pre>\n
\u4ee5\u4e0a\u793a\u4f8b\u8bf4\u660e myFunction<\/code> \u51fd\u6570\u671f\u671b\u6574\u6570\u7c7b\u578b\u7684 $foo<\/code> \u53c2\u6570\u548c\u5b57\u7b26\u4e32\u7c7b\u578b\u7684 $bar<\/code> \u53c2\u6570\u3002<\/p>\n
\u7c7b\u578b\u68c0\u67e5\u5982\u4f55\u589e\u5f3a<\/strong><\/p>\n
\u5f53\u4f7f\u7528\u547d\u540d\u53c2\u6570\u65f6\uff0cPHP \u4f1a\u6839\u636e\u6307\u5b9a\u7684\u7c7b\u578b\u63d0\u793a\u4e25\u683c\u68c0\u67e5\u53c2\u6570\u3002\u5982\u679c\u4e00\u4e2a\u53c2\u6570\u4e0d\u7b26\u5408\u5176\u7c7b\u578b\uff0c\u5c31\u4f1a\u4ea7\u751f\u7c7b\u578b\u9519\u8bef\u3002<\/p>\n
\u4f8b\u5982\uff0c\u5728\u4ee5\u4e0b\u4ee3\u7801\u4e2d\uff0c\u4f20\u9012\u7ed9 myFunction<\/code> \u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u4e0d\u662f\u6574\u6570\uff0c\u56e0\u6b64\u4f1a\u51fa\u73b0\u7c7b\u578b\u9519\u8bef\uff1a<\/p>\n
myFunction('foo', 'bar'); \/\/ \u8f93\u51fa Type error: Argument 1 passed to myFunction() must be of the type int, string given<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u8ba9\u6211\u4eec\u7f16\u5199\u4e00\u4e2a\u5b9e\u7528\u7684\u4f8b\u5b50\uff0c\u5c55\u793a\u4f7f\u7528\u547d\u540d\u53c2\u6570\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u7684\u597d\u5904\uff1a<\/p>\n
<?php\n\nfunction validateInput(int $age, string $name): bool\n{\n    if ($age < 18) {\n        return false;\n    }\n    if (!preg_match('\/^[a-zA-Z ]+$\/', $name)) {\n        return false;\n    }\n    return true;\n}\n\n$isValid = validateInput(25, 'John Doe');<\/pre>\n
\u8fd9\u79cd\u65b9\u6cd5\u63d0\u4f9b\u4e86\u660e\u786e\u7684\u7c7b\u578b\u63d0\u793a\uff0c\u5982\u679c $age<\/code> \u4e0d\u662f\u6574\u6570\u6216\u8005 $name<\/code> \u4e0d\u662f\u4ec5\u5305\u542b\u5b57\u6bcd\u548c\u7a7a\u683c\u7684\u5b57\u7b26\u4e32\uff0c\u5b83\u5c06\u8fd4\u56de false<\/code>\u3002<\/p>\n
\u7ed3\u8bba<\/strong><\/p>\n
PHP \u4e2d\u7684\u547d\u540d\u53c2\u6570\u63d0\u4f9b\u4e86\u4e00\u79cd\u5f3a\u5927\u4e14\u6e05\u6670\u7684\u65b9\u5f0f\u6765\u589e\u5f3a\u7c7b\u578b\u68c0\u67e5\u3002\u901a\u8fc7\u6307\u5b9a\u53c2\u6570\u7c7b\u578b\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u8d28\u91cf\uff0c\u51cf\u5c11\u9519\u8bef\u5e76\u786e\u4fdd\u53c2\u6570\u7b26\u5408\u9884\u671f\u3002<\/p>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aPHP \u51fd\u6570\u4e2d\u547d\u540d\u53c2\u6570\u7684\u4f7f\u7528\u5982\u4f55\u589e\u5f3a\u7c7b\u578b\u68c0\u67e5\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ephp,\u7c7b\u578b\u68c0\u67e5\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
PHP \u51fd\u6570\u4e2d\u547d\u540d\u53c2\u6570\u7684\u4f7f\u7528\u5982\u4f55\u589e\u5f3a\u7c7b\u578b\u68c0\u67e5\uff1f \u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aPHP \u51fd\u6570\u4e2d\u547d\u540d\u53c2\u6570\u7684\u4f7f\u7528\u5982\u4f55\u589e\u5f3a\u7c7b\u578b\u68c0\u67e5\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01 PHP \u7684\u547d\u540d\u53c2\u6570\u5141\u8bb8\u5728\u53c2\u6570\u540d\u79f0\u4e4b\u524d\u6307\u5b9a\u7c7b\u578b\uff0c\u589e\u5f3a\u4e86\u7c7b\u578b\u68c0\u67e5\u529f\u80fd\u3002\u5b83\u5f3a\u5236\u6267\u884c\u53c2\u6570\u7c7b\u578b\uff0c\u901a\u8fc7\u6307\u5b9a $foo \u4e3a\u6574\u6570\u3001$bar \u4e3a\u5b57\u7b26\u4e32\uff0c\u51fd\u6570 myFunction \u53ef\u4e25\u683c\u68c0\u67e5\u53c2\u6570\uff0c\u907f\u514d\u4e86\u4f20\u9012\u9519\u8bef\u7c7b\u578b\u7684\u9519\u8bef\u3002\u547d\u540d\u53c2\u6570\u5728\u5b9e\u6218\u4e2d\u63d0\u4f9b\u4e86\u660e\u786e\u7684\u7c7b\u578b\u63d0\u793a\uff0c\u63d0\u9ad8\u4ee3\u7801\u8d28\u91cf\u3001\u51cf\u5c11\u9519\u8bef\uff0c\u786e\u4fdd\u53c2\u6570\u7b26\u5408\u9884\u671f\u3002 PHP \u51fd\u6570\u4e2d\u547d\u540d\u53c2\u6570\uff1a\u63d0\u5347\u7c7b\u578b\u68c0\u67e5\u80fd\u529b \u7b80\u4ecb PHP \u7684\u547d\u540d\u53c2\u6570\u5141\u8bb8\u51fd\u6570\u5728\u53c2\u6570\u540d\u79f0\u4e4b\u524d\u4f7f\u7528\u7c7b\u578b\u63d0\u793a\u3002\u8fd9\u5bf9\u4e8e\u52a0\u5f3a\u7c7b\u578b\u68c0\u67e5\u3001\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u51cf\u5c11\u9519\u8bef\u975e\u5e38\u6709\u7528\u3002 \u8bed\u6cd5 function myFunction(int $foo, string $bar): void { \/\/ … } \u4ee5\u4e0a\u793a\u4f8b\u8bf4\u660e myFunction \u51fd\u6570\u671f\u671b\u6574\u6570\u7c7b\u578b\u7684 $foo \u53c2\u6570\u548c\u5b57\u7b26\u4e32\u7c7b\u578b\u7684 $bar \u53c2\u6570\u3002 \u7c7b\u578b\u68c0\u67e5\u5982\u4f55\u589e\u5f3a \u5f53\u4f7f\u7528\u547d\u540d\u53c2\u6570\u65f6\uff0cPHP \u4f1a\u6839\u636e\u6307\u5b9a\u7684\u7c7b\u578b\u63d0\u793a\u4e25\u683c\u68c0\u67e5\u53c2\u6570\u3002\u5982\u679c\u4e00\u4e2a\u53c2\u6570\u4e0d\u7b26\u5408\u5176\u7c7b\u578b\uff0c\u5c31\u4f1a\u4ea7\u751f\u7c7b\u578b\u9519\u8bef\u3002 \u4f8b\u5982\uff0c\u5728\u4ee5\u4e0b\u4ee3\u7801\u4e2d\uff0c\u4f20\u9012\u7ed9 myFunction \u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u4e0d\u662f\u6574\u6570\uff0c\u56e0\u6b64\u4f1a\u51fa\u73b0\u7c7b\u578b\u9519\u8bef\uff1a myFunction(‘foo’, ‘bar’); \/\/ \u8f93\u51fa Type error: Argument 1 passed to myFunction() must be of the […]<\/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-47898","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47898","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=47898"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47898\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}