{"id":47316,"date":"2024-12-02T09:08:17","date_gmt":"2024-12-02T01:08:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47316\/"},"modified":"2024-12-02T09:08:17","modified_gmt":"2024-12-02T01:08:17","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-php-%e5%87%bd%e6%95%b0%e4%b8%ad%e5%a3%b0%e6%98%8e%e7%89%b9%e5%ae%9a%e5%8f%98%e9%87%8f%e7%b1%bb%e5%9e%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47316\/","title":{"rendered":"\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u6211\u4eec\u53c8\u89c1\u9762\u4e86\u554a~\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f\u300b<\/span>\u7684\u5185\u5bb9\u4e2d\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u3002\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u77e5\u8bc6\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\uff0c\u4ee5\u540e\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u66f4\u591a<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u6587\u7ae0\uff0c\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u8fdb\u6b65\uff01\u4e0b\u9762\u5c31\u5f00\u59cb\u672c\u6587\u7684\u6b63\u5f0f\u5185\u5bb9~<\/p>\n<p>\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u53d8\u91cf\u7c7b\u578b\uff0c\u4f7f\u7528\u7c7b\u578b\u63d0\u793a\u7b26\u53f7 (:)+\u7c7b\u578b\u540d\u79f0\uff1a\u6574\u6570\uff1aint\u6d6e\u70b9\u6570\uff1afloat\u5b57\u7b26\u4e32\uff1astring\u5e03\u5c14\u503c\uff1abool\u6570\u7ec4\uff1aarray\u5bf9\u8c61\uff1aobject\u53ef\u8c03\u7528\u5bf9\u8c61\/\u51fd\u6570\uff1acallable\u53ef\u8fed\u4ee3\u6570\u636e\u7ed3\u6784\uff1aiterable<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729910554671c571ac2456.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f<\/strong><\/p>\n<p>PHP \u662f\u4e00\u79cd\u5bbd\u677e\u7c7b\u578b\u8bed\u8a00\uff0c\u8fd9\u610f\u5473\u7740\u60a8\u53ef\u4ee5\u76f4\u63a5\u5c06\u4efb\u4f55\u7c7b\u578b\u7684\u6570\u636e\u5206\u914d\u7ed9\u53d8\u91cf\u3002\u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u7ef4\u62a4\u6027\u548c\u5b89\u5168\u6027\uff0c\u6307\u5b9a\u53d8\u91cf\u7684\u7279\u5b9a\u7c7b\u578b\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><strong>\u7c7b\u578b\u58f0\u660e\u8bed\u6cd5<\/strong><\/p>\n<p>\u4e3a\u4e86\u58f0\u660e\u4e00\u4e2a\u7279\u5b9a\u7c7b\u578b\u7684\u53d8\u91cf\uff0c\u8bf7\u5728\u53d8\u91cf\u540d\u4e4b\u524d\u4f7f\u7528\u7c7b\u578b\u63d0\u793a\u7b26\u53f7 (<code>:<\/code>)\uff0c\u540e\u8ddf\u7c7b\u578b\u540d\u79f0\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>function myFunction(int $number): void\n{\n    \/\/ ...\n}<\/pre>\n<p>\u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\uff0c<code>$number<\/code> \u53d8\u91cf\u88ab\u58f0\u660e\u4e3a <code>int<\/code> \u7c7b\u578b\u3002<\/p>\n<p><strong>\u652f\u6301\u7684\u7c7b\u578b<\/strong><\/p>\n<p>PHP \u652f\u6301\u4ee5\u4e0b\u53d8\u91cf\u7c7b\u578b\uff1a<\/p>\n<ul>\n<li><code>int<\/code> &#8211; \u6574\u6570<\/li>\n<li><code>float<\/code> &#8211; \u6d6e\u70b9\u6570<\/li>\n<li><code>string<\/code> &#8211; \u5b57\u7b26\u4e32<\/li>\n<li><code>bool<\/code> &#8211; \u5e03\u5c14\u503c<\/li>\n<li><code>array<\/code> &#8211; \u6570\u7ec4<\/li>\n<li><code>object<\/code> &#8211; \u5bf9\u8c61<\/li>\n<li><code>callable<\/code> &#8211; \u53ef\u8c03\u7528\u7684\u5bf9\u8c61\u6216\u51fd\u6570<\/li>\n<li><code>iterable<\/code> &#8211; \u53ef\u8fed\u4ee3\u7684\u6570\u636e\u7ed3\u6784\uff08\u4f8b\u5982\u6570\u7ec4\u6216\u5bf9\u8c61\uff09<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4e00\u4e2a\u8ba1\u7b97\u4e24\u4e2a\u6570\u5b57\u5e73\u5747\u503c\u7684\u51fd\u6570\uff1a<\/p>\n<pre>function calculateAverage(int $num1, int $num2): float\n{\n    return ($num1 + $num2) \/ 2;\n}<\/pre>\n<p>\u8fd9\u4e2a\u51fd\u6570\u7684\u7b7e\u540d\u58f0\u660e\u4e86 <code>$num1<\/code> \u548c <code>$num2<\/code> \u53d8\u91cf\u4e3a <code>int<\/code> \u7c7b\u578b\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a <code>float<\/code> \u7c7b\u578b\u7684\u5e73\u5747\u503c\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u5982\u679c\u4f20\u5165\u9519\u8bef\u7684\u7c7b\u578b\uff0cPHP \u4e0d\u4f1a\u629b\u51fa\u9519\u8bef\u3002\u76f8\u53cd\uff0c\u5b83\u4f1a\u9690\u5f0f\u8f6c\u6362\u53d8\u91cf\u3002<\/li>\n<li>\u5982\u679c\u60a8\u5e0c\u671b\u5728\u4f20\u5165\u9519\u8bef\u7684\u7c7b\u578b\u65f6\u5f15\u53d1\u9519\u8bef\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>declare(strict_types=1);<\/code> \u6765\u542f\u7528\u4e25\u683c\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f \u5927\u5bb6\u597d\uff0c\u6211\u4eec\u53c8\u89c1\u9762\u4e86\u554a~\u672c\u6587\u300a\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f\u300b\u7684\u5185\u5bb9\u4e2d\u5c06\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u3002\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\uff0c\u4ee5\u540e\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u66f4\u591a\u6587\u7ae0\u76f8\u5173\u6587\u7ae0\uff0c\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u8fdb\u6b65\uff01\u4e0b\u9762\u5c31\u5f00\u59cb\u672c\u6587\u7684\u6b63\u5f0f\u5185\u5bb9~ \u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u53d8\u91cf\u7c7b\u578b\uff0c\u4f7f\u7528\u7c7b\u578b\u63d0\u793a\u7b26\u53f7 (:)+\u7c7b\u578b\u540d\u79f0\uff1a\u6574\u6570\uff1aint\u6d6e\u70b9\u6570\uff1afloat\u5b57\u7b26\u4e32\uff1astring\u5e03\u5c14\u503c\uff1abool\u6570\u7ec4\uff1aarray\u5bf9\u8c61\uff1aobject\u53ef\u8c03\u7528\u5bf9\u8c61\/\u51fd\u6570\uff1acallable\u53ef\u8fed\u4ee3\u6570\u636e\u7ed3\u6784\uff1aiterable \u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u58f0\u660e\u7279\u5b9a\u53d8\u91cf\u7c7b\u578b\uff1f PHP \u662f\u4e00\u79cd\u5bbd\u677e\u7c7b\u578b\u8bed\u8a00\uff0c\u8fd9\u610f\u5473\u7740\u60a8\u53ef\u4ee5\u76f4\u63a5\u5c06\u4efb\u4f55\u7c7b\u578b\u7684\u6570\u636e\u5206\u914d\u7ed9\u53d8\u91cf\u3002\u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u7ef4\u62a4\u6027\u548c\u5b89\u5168\u6027\uff0c\u6307\u5b9a\u53d8\u91cf\u7684\u7279\u5b9a\u7c7b\u578b\u975e\u5e38\u6709\u7528\u3002 \u7c7b\u578b\u58f0\u660e\u8bed\u6cd5 \u4e3a\u4e86\u58f0\u660e\u4e00\u4e2a\u7279\u5b9a\u7c7b\u578b\u7684\u53d8\u91cf\uff0c\u8bf7\u5728\u53d8\u91cf\u540d\u4e4b\u524d\u4f7f\u7528\u7c7b\u578b\u63d0\u793a\u7b26\u53f7 (:)\uff0c\u540e\u8ddf\u7c7b\u578b\u540d\u79f0\u3002\u4f8b\u5982\uff1a function myFunction(int $number): void { \/\/ &#8230; } \u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\uff0c$number \u53d8\u91cf\u88ab\u58f0\u660e\u4e3a int \u7c7b\u578b\u3002 \u652f\u6301\u7684\u7c7b\u578b PHP \u652f\u6301\u4ee5\u4e0b\u53d8\u91cf\u7c7b\u578b\uff1a int &#8211; \u6574\u6570 float &#8211; \u6d6e\u70b9\u6570 string &#8211; \u5b57\u7b26\u4e32 bool &#8211; \u5e03\u5c14\u503c array &#8211; \u6570\u7ec4 object &#8211; \u5bf9\u8c61 callable &#8211; \u53ef\u8c03\u7528\u7684\u5bf9\u8c61\u6216\u51fd\u6570 iterable [&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-47316","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47316","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=47316"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47316\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}