{"id":47689,"date":"2024-12-02T11:16:21","date_gmt":"2024-12-02T03:16:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47689\/"},"modified":"2024-12-02T11:16:21","modified_gmt":"2024-12-02T03:16:21","slug":"php-%e5%87%bd%e6%95%b0%e4%b8%ad%e4%bd%bf%e7%94%a8%e8%bf%94%e5%9b%9e%e5%80%bc%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%e6%98%af%e6%80%8e%e6%a0%b7%e7%9a%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47689\/","title":{"rendered":"PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u600e\u6837\u7684\uff1f"},"content":{"rendered":"

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

PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u600e\u6837\u7684\uff1f<\/h1>\n

\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\u300aPHP \u51fd\u6570\u4e2d\u4f7f\u7528\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u600e\u6837\u7684\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n

PHP \u51fd\u6570\u4e2d\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\uff1a\u660e\u786e\u8fd4\u56de\u503c\u7c7b\u578b\u3001\u786e\u4fdd\u8fd4\u56de\u4e00\u81f4\u7684\u503c\u3001\u5904\u7406\u5f02\u5e38\u3001\u4f7f\u7528\u521d\u59cb\u503c\u3001\u4f7f\u7528 void \u6307\u5b9a\u6ca1\u6709\u8fd4\u56de\u503c\u3002\u4f8b\u5982\uff0c\u8ba1\u7b97\u603b\u91cf\u7684\u51fd\u6570\u5e94\u660e\u786e\u8fd4\u56de\u503c\u7c7b\u578b\u4e3a float\uff0c\u7528 0 \u521d\u59cb\u5316\u603b\u91cf\uff0c\u5728\u5faa\u73af\u4e2d\u7d2f\u52a0\u603b\u91cf\uff0c\u5e76\u5728 $items \u6570\u7ec4\u4e3a\u7a7a\u7684\u60c5\u51b5\u4e0b\u8fd4\u56de 0\u3002<\/p>\n

\"PHP<\/p>\n

\u4f7f\u7528 PHP \u51fd\u6570\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n

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

\u5728 PHP \u51fd\u6570\u4e2d\uff0c\u8fd4\u56de\u503c\u5bf9\u4e8e\u4f20\u8fbe\u51fd\u6570\u64cd\u4f5c\u7684\u7ed3\u679c\u81f3\u5173\u91cd\u8981\u3002\u4e86\u89e3\u5e76\u9075\u5faa\u6700\u4f73\u5b9e\u8df5\u5bf9\u4e8e\u7f16\u5199\u5065\u58ee\u3001\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

\u660e\u786e\u8fd4\u56de\u503c\u7c7b\u578b<\/strong><\/p>\n

\u4f7f\u7528 @return<\/code> \u6ce8\u91ca\u660e\u786e\u6307\u5b9a\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7c7b\u578b\uff1a<\/p>\n

\/**\n * @return string\n *\/\nfunction get_username() {\n    \/\/ ...\n}<\/pre>\n
\u8fd9\u6709\u52a9\u4e8e IDE \u8fdb\u884c\u4ee3\u7801\u611f\u77e5\u5e76\u68c0\u6d4b\u53ef\u80fd\u7684\u7c7b\u578b\u4e0d\u5339\u914d\u3002<\/p>\n
\u786e\u4fdd\u8fd4\u56de\u4e00\u81f4\u7684\u503c<\/strong><\/p>\n
\u59cb\u7ec8\u786e\u4fdd\u51fd\u6570\u5728\u6240\u6709\u60c5\u51b5\u4e0b\u90fd\u8fd4\u56de\u4e00\u4e2a\u4e00\u81f4\u7684\u503c\u3002\u907f\u514d\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u8fd4\u56de null<\/code> \u6216\u7a7a\u5b57\u7b26\u4e32\u3002<\/p>\n
\u4f7f\u7528\u6700\u521d\u59cb\u503c<\/strong><\/p>\n
\u5bf9\u4e8e\u53ef\u80fd\u8fd4\u56de null<\/code> \u7684\u51fd\u6570\uff0c\u8003\u8651\u4f7f\u7528\u4e00\u4e2a\u9ed8\u8ba4\u7684\u521d\u59cb\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n
function get_user_setting($setting_name) {\n    $setting = get_setting($setting_name);\n    return $setting !== null ? $setting : 'default_value';\n}<\/pre>\n
\u5904\u7406\u5f02\u5e38<\/strong><\/p>\n
\u5982\u679c\u51fd\u6570\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u9047\u5230\u9519\u8bef\uff0c\u8bf7\u8003\u8651\u629b\u51fa\u5f02\u5e38\u800c\u4e0d\u662f\u8fd4\u56de false<\/code>\u3002\u8fd9\u5141\u8bb8\u5728\u8c03\u7528\u4ee3\u7801\u4e2d\u4f18\u96c5\u5730\u5904\u7406\u9519\u8bef\u3002<\/p>\n
try {\n    $user = get_user($user_id);\n} catch (\\Exception $e) {\n    \/\/ Handle the error\n}<\/pre>\n
\u4f7f\u7528 void<\/code> \u6307\u5b9a\u6ca1\u6709\u8fd4\u56de\u503c<\/strong><\/p>\n
\u5982\u679c\u51fd\u6570\u6ca1\u6709\u6709\u610f\u4e49\u7684\u8fd4\u56de\u503c\uff0c\u8bf7\u4f7f\u7528 void<\/code> \u7c7b\u578b\u6ce8\u89e3\u3002\u8fd9\u6e05\u6670\u5730\u8868\u660e\u8be5\u51fd\u6570\u4e0d\u5e94\u88ab\u89c6\u4e3a\u8fd4\u56de\u503c\u3002<\/p>\n
\/**\n * @return void\n *\/\nfunction delete_user($user_id) {\n    \/\/ ...\n}<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u8ba1\u7b97\u603b\u91cf\u7684\u51fd\u6570\uff1a<\/p>\n
function calculate_total($items) {\n    $total = 0;\n    foreach ($items as $item) {\n        $total += $item['price'] * $item['quantity'];\n    }\n    return $total;\n}<\/pre>\n
\u9075\u5faa\u6700\u4f73\u5b9e\u8df5<\/strong>\uff1a<\/p>\n
    \n
  • \u4f7f\u7528 @return<\/code> \u6ce8\u91ca\u6307\u5b9a\u8fd4\u56de\u503c\u7c7b\u578b\u4e3a float<\/code>\u3002<\/li>\n
  • \u7528 0<\/code> \u521d\u59cb\u5316\u603b\u91cf\uff0c\u786e\u4fdd\u59cb\u7ec8\u8fd4\u56de\u4e00\u4e2a\u503c\u3002<\/li>\n
  • \u5728\u5faa\u73af\u4e2d\u7d2f\u52a0\u603b\u91cf\uff0c\u4ee5\u786e\u4fdd\u8fd4\u56de\u6b63\u786e\u7684\u603b\u91cf\u3002<\/li>\n
  • \u4f7f\u7528\u660e\u786e\u7684\u7c7b\u578b\u68c0\u67e5\u6765\u5904\u7406\u7a7a $items<\/code> \u6570\u7ec4\u7684\u60c5\u51b5\uff0c\u5e76\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u8fd4\u56de 0<\/code>\u3002<\/li>\n<\/ul>\n
    \u6587\u4e2d\u5173\u4e8ephp,\u8fd4\u56de\u503c\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\u4e2d\u4f7f\u7528\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u600e\u6837\u7684\uff1f\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":"
    PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u600e\u6837\u7684\uff1f \u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\u300aPHP \u51fd\u6570\u4e2d\u4f7f\u7528\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u600e\u6837\u7684\uff1f\u300b\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01 PHP \u51fd\u6570\u4e2d\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\uff1a\u660e\u786e\u8fd4\u56de\u503c\u7c7b\u578b\u3001\u786e\u4fdd\u8fd4\u56de\u4e00\u81f4\u7684\u503c\u3001\u5904\u7406\u5f02\u5e38\u3001\u4f7f\u7528\u521d\u59cb\u503c\u3001\u4f7f\u7528 void \u6307\u5b9a\u6ca1\u6709\u8fd4\u56de\u503c\u3002\u4f8b\u5982\uff0c\u8ba1\u7b97\u603b\u91cf\u7684\u51fd\u6570\u5e94\u660e\u786e\u8fd4\u56de\u503c\u7c7b\u578b\u4e3a float\uff0c\u7528 0 \u521d\u59cb\u5316\u603b\u91cf\uff0c\u5728\u5faa\u73af\u4e2d\u7d2f\u52a0\u603b\u91cf\uff0c\u5e76\u5728 $items \u6570\u7ec4\u4e3a\u7a7a\u7684\u60c5\u51b5\u4e0b\u8fd4\u56de 0\u3002 \u4f7f\u7528 PHP \u51fd\u6570\u8fd4\u56de\u503c\u7684\u6700\u4f73\u5b9e\u8df5 \u7b80\u4ecb \u5728 PHP \u51fd\u6570\u4e2d\uff0c\u8fd4\u56de\u503c\u5bf9\u4e8e\u4f20\u8fbe\u51fd\u6570\u64cd\u4f5c\u7684\u7ed3\u679c\u81f3\u5173\u91cd\u8981\u3002\u4e86\u89e3\u5e76\u9075\u5faa\u6700\u4f73\u5b9e\u8df5\u5bf9\u4e8e\u7f16\u5199\u5065\u58ee\u3001\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u81f3\u5173\u91cd\u8981\u3002 \u660e\u786e\u8fd4\u56de\u503c\u7c7b\u578b \u4f7f\u7528 @return \u6ce8\u91ca\u660e\u786e\u6307\u5b9a\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7c7b\u578b\uff1a \/** * @return string *\/ function get_username() { \/\/ … } \u8fd9\u6709\u52a9\u4e8e IDE \u8fdb\u884c\u4ee3\u7801\u611f\u77e5\u5e76\u68c0\u6d4b\u53ef\u80fd\u7684\u7c7b\u578b\u4e0d\u5339\u914d\u3002 \u786e\u4fdd\u8fd4\u56de\u4e00\u81f4\u7684\u503c \u59cb\u7ec8\u786e\u4fdd\u51fd\u6570\u5728\u6240\u6709\u60c5\u51b5\u4e0b\u90fd\u8fd4\u56de\u4e00\u4e2a\u4e00\u81f4\u7684\u503c\u3002\u907f\u514d\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u8fd4\u56de null \u6216\u7a7a\u5b57\u7b26\u4e32\u3002 \u4f7f\u7528\u6700\u521d\u59cb\u503c \u5bf9\u4e8e\u53ef\u80fd\u8fd4\u56de null \u7684\u51fd\u6570\uff0c\u8003\u8651\u4f7f\u7528\u4e00\u4e2a\u9ed8\u8ba4\u7684\u521d\u59cb\u503c\u3002\u4f8b\u5982\uff1a function get_user_setting($setting_name) { $setting = get_setting($setting_name); return $setting […]<\/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-47689","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47689","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=47689"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47689\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}