{"id":47044,"date":"2024-12-02T08:01:32","date_gmt":"2024-12-02T00:01:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47044\/"},"modified":"2024-12-02T08:01:32","modified_gmt":"2024-12-02T00:01:32","slug":"php%e5%87%bd%e6%95%b0%e7%9a%84%e5%8f%82%e6%95%b0%e7%b1%bb%e5%9e%8b%e6%a3%80%e6%9f%a5%e4%b8%8e%e7%b1%bb%e5%9e%8b%e5%bc%ba%e5%88%b6%e8%bd%ac%e6%8d%a2%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47044\/","title":{"rendered":"PHP\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b<\/h1>\n<p>\u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6587\u7ae0\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300aPHP\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729861771671b988bc2f1d.jpg\" class=\"aligncenter\" title=\"PHP\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b\u63d2\u56fe\" alt=\"PHP\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b<\/strong><\/p>\n<p><strong>\u7c7b\u578b\u68c0\u67e5\uff1a<\/strong><\/p>\n<p>\u7c7b\u578b\u68c0\u67e5\u4f1a\u5728\u51fd\u6570\u6267\u884c\u524d\u9a8c\u8bc1\u53c2\u6570\u7684\u7c7b\u578b\u662f\u5426\u7b26\u5408\u9884\u671f\u3002\u5982\u679c\u7c7b\u578b\u4e0d\u5339\u914d\uff0c\u51fd\u6570\u5c06\u629b\u51fa\u5f02\u5e38\u6216\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u503c\u3002<\/p>\n<p><strong>\u7528\u6cd5\uff1a<\/strong><\/p>\n<pre>function add(int $a, int $b)\n{\n    return $a + $b;\n}\n\ntry {\n    \/\/ \u7b26\u5408\u7c7b\u578b\u7684\u53c2\u6570\n    echo add(1, 2); \/\/ \u8f93\u51fa 3\n\n    \/\/ \u4e0d\u7b26\u5408\u7c7b\u578b\u7684\u53c2\u6570\n    add('Hello', 2); \/\/ TypeError: Argument #1 is not of type int\n} catch (TypeError $e) {\n    echo $e-&gt;getMessage();\n}<\/pre>\n<p><strong>\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\uff1a<\/strong><\/p>\n<p>\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u4f1a\u5728\u51fd\u6570\u6267\u884c\u524d\u5c06\u53c2\u6570\u8f6c\u6362\u6210\u671f\u671b\u7684\u7c7b\u578b\u3002\u5982\u679c\u8f6c\u6362\u6210\u529f\uff0c\u5c06\u4e0d\u4f1a\u89e6\u53d1\u9519\u8bef\u6216\u5f02\u5e38\u3002<\/p>\n<p><strong>\u7528\u6cd5\uff1a<\/strong><\/p>\n<pre>function add(string $a, string $b): string\n{\n    return $a . $b;\n}\n\n\/\/ \u5f3a\u5236\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\necho add('1', 2); \/\/ \u8f93\u51fa 12<\/pre>\n<p><strong>\u5173\u952e\u533a\u522b\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u65f6\u673a\uff1a<\/strong> \u7c7b\u578b\u68c0\u67e5\u5728\u51fd\u6570\u6267\u884c\u524d\u53d1\u751f\uff0c\u800c\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u5728\u51fd\u6570\u6267\u884c\u540e\u53d1\u751f\u3002<\/li>\n<li><strong>\u9519\u8bef\u5904\u7406\uff1a<\/strong> \u7c7b\u578b\u68c0\u67e5\u4e0d\u5339\u914d\u4f1a\u89e6\u53d1\u9519\u8bef\u6216\u5f02\u5e38\uff0c\u800c\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u5931\u8d25\u4e0d\u4f1a\u62a5\u9519\u3002<\/li>\n<li><strong>\u6027\u80fd\uff1a<\/strong> \u7c7b\u578b\u68c0\u67e5\u901f\u5ea6\u6bd4\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u5feb\uff0c\u56e0\u4e3a\u5b83\u53ea\u6bd4\u8f83\u7c7b\u578b\u800c\u4e0d\u9700\u8981\u8f6c\u6362\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u8003\u8651\u4e00\u4e2a\u8868\u5355\u5904\u7406\u51fd\u6570\uff0c\u5b83\u63a5\u6536\u4e00\u4e2a\u540d\u79f0\u548c\u4e00\u4e2a\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u7c7b\u578b\u68c0\u67e5\u6765\u786e\u4fdd\u53c2\u6570\u5177\u6709\u6b63\u786e\u7684\u7c7b\u578b\uff1a<\/p>\n<pre>function processForm(string $name, string $email): void\n{\n    \/\/ \u7c7b\u578b\u68c0\u67e5\n    if (!is_string($name)) {\n        throw new InvalidArgumentException('Name must be a string');\n    }\n    if (!is_string($email)) {\n        throw new InvalidArgumentException('Email must be a string');\n    }\n\n    \/\/ \u5176\u4f59\u8868\u5355\u5904\u7406\u903b\u8f91\n}<\/pre>\n<p>\u6587\u4e2d\u5173\u4e8e\u7c7b\u578b\u68c0\u67e5,\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\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\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b\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\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b \u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6587\u7ae0\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300aPHP\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~ PHP \u51fd\u6570\u53c2\u6570\u7c7b\u578b\u68c0\u67e5\u4e0e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u533a\u522b \u7c7b\u578b\u68c0\u67e5\uff1a \u7c7b\u578b\u68c0\u67e5\u4f1a\u5728\u51fd\u6570\u6267\u884c\u524d\u9a8c\u8bc1\u53c2\u6570\u7684\u7c7b\u578b\u662f\u5426\u7b26\u5408\u9884\u671f\u3002\u5982\u679c\u7c7b\u578b\u4e0d\u5339\u914d\uff0c\u51fd\u6570\u5c06\u629b\u51fa\u5f02\u5e38\u6216\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u503c\u3002 \u7528\u6cd5\uff1a function add(int $a, int $b) { return $a + $b; } try { \/\/ \u7b26\u5408\u7c7b\u578b\u7684\u53c2\u6570 echo add(1, 2); \/\/ \u8f93\u51fa 3 \/\/ \u4e0d\u7b26\u5408\u7c7b\u578b\u7684\u53c2\u6570 add(&#8216;Hello&#8217;, 2); \/\/ TypeError: Argument #1 is not of type int } catch (TypeError $e) { echo $e-&gt;getMessage(); } \u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\uff1a \u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u4f1a\u5728\u51fd\u6570\u6267\u884c\u524d\u5c06\u53c2\u6570\u8f6c\u6362\u6210\u671f\u671b\u7684\u7c7b\u578b\u3002\u5982\u679c\u8f6c\u6362\u6210\u529f\uff0c\u5c06\u4e0d\u4f1a\u89e6\u53d1\u9519\u8bef\u6216\u5f02\u5e38\u3002 \u7528\u6cd5\uff1a function add(string $a, [&hellip;]<\/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-47044","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47044","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=47044"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47044\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}