{"id":47489,"date":"2024-12-02T12:32:45","date_gmt":"2024-12-02T04:32:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47489\/"},"modified":"2024-12-02T12:32:45","modified_gmt":"2024-12-02T04:32:45","slug":"php%e5%87%bd%e6%95%b0%e5%8f%82%e6%95%b0%e7%9a%84%e7%b1%bb%e5%9e%8b%e6%8e%a8%e6%96%ad%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47489\/","title":{"rendered":"PHP\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f"},"content":{"rendered":"

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

PHP\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aPHP\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n

PHP 7.4\u5f15\u5165\u51fd\u6570\u53c2\u6570\u7c7b\u578b\u63a8\u65ad\uff0c\u5141\u8bb8\u5728\u51fd\u6570\u5b9a\u4e49\u4e2d\u4e3a\u53c2\u6570\u6307\u5b9a\u9884\u671f\u7c7b\u578b\uff1a\u8bed\u6cd5\uff1afunction myFunction(Type $param): Type {…}\u4f18\u70b9\uff1a\u589e\u5f3a\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u51cf\u5c11\u7c7b\u578b\u8f6c\u6362\uff0c\u63d0\u4f9b\u66f4\u5f3a\u7684\u7c7b\u578b\u68c0\u67e5\u3002\u9650\u5236\uff1a\u4ec5\u9002\u7528\u4e8e\u51fd\u6570\u53c2\u6570\uff0c\u63a8\u65ad\u7ed3\u679c\u53ef\u80fd\u4e0d\u5b8c\u5168\u51c6\u786e\uff0c\u9700\u8981PHP 7.4\u6216\u66f4\u9ad8\u7248\u672c\u3002<\/p>\n

\"PHP\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f\u63d2\u56fe\"<\/p>\n

PHP \u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f<\/h2>\n

\u7b80\u4ecb<\/h3>\n

\u7c7b\u578b\u63a8\u65ad\u662f\u4e00\u79cd\u8bed\u8a00\u7279\u6027\uff0c\u5b83\u5141\u8bb8\u51fd\u6570\u5728\u4e0d\u663e\u5f0f\u6307\u5b9a\u53c2\u6570\u7c7b\u578b\u7684\u60c5\u51b5\u4e0b\u786e\u5b9a\u53c2\u6570\u7684\u7c7b\u578b\u3002\u5728 PHP 7.4 \u7248\u672c\u4e2d\uff0c\u5f15\u5165\u4e86\u51fd\u6570\u53c2\u6570\u7c7b\u578b\u7684\u63a8\u65ad\u529f\u80fd\u3002<\/p>\n

\u8bed\u6cd5<\/h3>\n

\u5728 PHP 7.4 \u4e2d\uff0c\u53ef\u4ee5\u4e3a\u51fd\u6570\u53c2\u6570\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u8fdb\u884c\u7c7b\u578b\u63a8\u65ad\uff1a<\/p>\n

function myFunction(Type $param): Type {...}<\/pre>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • Type<\/code> \u662f\u53c2\u6570\u7684\u9884\u671f\u7684\u7c7b\u578b\u3002<\/li>\n
  • $param<\/code> \u662f\u53c2\u6570\u7684\u540d\u79f0\u3002<\/li>\n<\/ul>\n
    \u5b9e\u6218\u6848\u4f8b<\/h3>\n
    \u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\u51fd\u6570\uff1a<\/p>\n
    function addNumbers(int $x, int $y): int {\n  return $x + $y;\n}<\/pre>\n
    \u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\uff0c\u53c2\u6570 $x<\/code> \u548c $y<\/code> \u7684\u7c7b\u578b\u88ab\u63a8\u65ad\u4e3a int<\/code>\u3002\u8fd9\u610f\u5473\u7740\u5728\u8c03\u7528\u6b64\u51fd\u6570\u65f6\uff0c\u5fc5\u987b\u4f20\u9012\u6574\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u5426\u5219\u4f1a\u4ea7\u751f\u7c7b\u578b\u9519\u8bef\u3002<\/p>\n
    \u4f18\u70b9<\/h3>\n
    \u7c7b\u578b\u63a8\u65ad\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4f18\u70b9\uff1a<\/p>\n
      \n
    • \u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u589e\u5f3a\uff1a<\/strong>\u901a\u8fc7\u660e\u786e\u6307\u5b9a\u53c2\u6570\u7c7b\u578b\uff0c\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u5f97\u4ee5\u63d0\u9ad8\u3002<\/li>\n
    • \u66f4\u5c11\u7684\u663e\u5f0f\u7c7b\u578b\u8f6c\u6362\uff1a<\/strong>\u5728 PHP 7.4 \u4e4b\u524d\uff0c\u9700\u8981\u663e\u5f0f\u8f6c\u6362\u53c2\u6570\u7c7b\u578b\u4ee5\u786e\u4fdd\u6b63\u786e\u6027\u3002\u7c7b\u578b\u63a8\u65ad\u6d88\u9664\u4e86\u8fd9\u4e00\u9700\u8981\u3002<\/li>\n
    • \u66f4\u5f3a\u7684\u7c7b\u578b\u68c0\u67e5\uff1a<\/strong>\u7c7b\u578b\u63a8\u65ad\u63d0\u4f9b\u7f16\u8bd1\u65f6\u7c7b\u578b\u68c0\u67e5\uff0c\u4ece\u800c\u53ef\u4ee5\u53ca\u65e9\u53d1\u73b0\u7c7b\u578b\u9519\u8bef\u3002<\/li>\n<\/ul>\n
      \u9650\u5236<\/h3>\n
      \u867d\u7136\u7c7b\u578b\u63a8\u65ad\u662f\u4e00\u9879\u6709\u7528\u7684\u529f\u80fd\uff0c\u4f46\u5b83\u4e5f\u6709\u4e00\u4e9b\u9650\u5236\uff1a<\/p>\n
        \n
      • \u5b83\u53ea\u9002\u7528\u4e8e\u51fd\u6570\u53c2\u6570\uff0c\u800c\u4e0d\u9002\u7528\u4e8e\u65b9\u6cd5\u6216\u53d8\u91cf\u3002<\/li>\n
      • \u63a8\u65ad\u51fa\u7684\u7c7b\u578b\u4e0d\u4e00\u5b9a\u662f\u7cbe\u786e\u7684\uff0c\u5c24\u5176\u662f\u5728\u6d89\u53ca\u6cdb\u578b\u65f6\u3002<\/li>\n
      • \u5b83\u9700\u8981 PHP 7.4 \u6216\u66f4\u9ad8\u7248\u672c\u624d\u80fd\u4f7f\u7528\u3002<\/li>\n<\/ul>\n
        \u4eca\u5929\u5173\u4e8e\u300aPHP\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f\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\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f \u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aPHP\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002 PHP 7.4\u5f15\u5165\u51fd\u6570\u53c2\u6570\u7c7b\u578b\u63a8\u65ad\uff0c\u5141\u8bb8\u5728\u51fd\u6570\u5b9a\u4e49\u4e2d\u4e3a\u53c2\u6570\u6307\u5b9a\u9884\u671f\u7c7b\u578b\uff1a\u8bed\u6cd5\uff1afunction myFunction(Type $param): Type {…}\u4f18\u70b9\uff1a\u589e\u5f3a\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u51cf\u5c11\u7c7b\u578b\u8f6c\u6362\uff0c\u63d0\u4f9b\u66f4\u5f3a\u7684\u7c7b\u578b\u68c0\u67e5\u3002\u9650\u5236\uff1a\u4ec5\u9002\u7528\u4e8e\u51fd\u6570\u53c2\u6570\uff0c\u63a8\u65ad\u7ed3\u679c\u53ef\u80fd\u4e0d\u5b8c\u5168\u51c6\u786e\uff0c\u9700\u8981PHP 7.4\u6216\u66f4\u9ad8\u7248\u672c\u3002 PHP \u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u63a8\u65ad\u6280\u672f \u7b80\u4ecb \u7c7b\u578b\u63a8\u65ad\u662f\u4e00\u79cd\u8bed\u8a00\u7279\u6027\uff0c\u5b83\u5141\u8bb8\u51fd\u6570\u5728\u4e0d\u663e\u5f0f\u6307\u5b9a\u53c2\u6570\u7c7b\u578b\u7684\u60c5\u51b5\u4e0b\u786e\u5b9a\u53c2\u6570\u7684\u7c7b\u578b\u3002\u5728 PHP 7.4 \u7248\u672c\u4e2d\uff0c\u5f15\u5165\u4e86\u51fd\u6570\u53c2\u6570\u7c7b\u578b\u7684\u63a8\u65ad\u529f\u80fd\u3002 \u8bed\u6cd5 \u5728 PHP 7.4 \u4e2d\uff0c\u53ef\u4ee5\u4e3a\u51fd\u6570\u53c2\u6570\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u8fdb\u884c\u7c7b\u578b\u63a8\u65ad\uff1a function myFunction(Type $param): Type {…} \u5176\u4e2d\uff1a Type \u662f\u53c2\u6570\u7684\u9884\u671f\u7684\u7c7b\u578b\u3002 $param \u662f\u53c2\u6570\u7684\u540d\u79f0\u3002 \u5b9e\u6218\u6848\u4f8b \u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\u51fd\u6570\uff1a function addNumbers(int $x, int $y): int { return $x + $y; } \u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\uff0c\u53c2\u6570 $x \u548c $y \u7684\u7c7b\u578b\u88ab\u63a8\u65ad\u4e3a int\u3002\u8fd9\u610f\u5473\u7740\u5728\u8c03\u7528\u6b64\u51fd\u6570\u65f6\uff0c\u5fc5\u987b\u4f20\u9012\u6574\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u5426\u5219\u4f1a\u4ea7\u751f\u7c7b\u578b\u9519\u8bef\u3002 \u4f18\u70b9 \u7c7b\u578b\u63a8\u65ad\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4f18\u70b9\uff1a \u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u589e\u5f3a\uff1a\u901a\u8fc7\u660e\u786e\u6307\u5b9a\u53c2\u6570\u7c7b\u578b\uff0c\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u5f97\u4ee5\u63d0\u9ad8\u3002 \u66f4\u5c11\u7684\u663e\u5f0f\u7c7b\u578b\u8f6c\u6362\uff1a\u5728 […]<\/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-47489","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47489","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=47489"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47489\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}