{"id":47818,"date":"2024-12-02T08:04:17","date_gmt":"2024-12-02T00:04:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47818\/"},"modified":"2024-12-02T08:04:17","modified_gmt":"2024-12-02T00:04:17","slug":"php-%e7%a8%8b%e5%ba%8f%e8%ae%be%e8%ae%a1%e4%b8%ad%e5%8c%bf%e5%90%8d%e5%87%bd%e6%95%b0%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47818\/","title":{"rendered":"PHP \u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\u533f\u540d\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"

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

PHP \u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\u533f\u540d\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5<\/h1>\n

\u6587\u7ae0<\/span>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300aPHP \u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\u533f\u540d\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n

PHP \u533f\u540d\u51fd\u6570\u6700\u4f73\u5b9e\u8df5\uff1a\u4fdd\u6301\u51fd\u6570\u7b80\u6d01\uff1b\u6b63\u786e\u4f7f\u7528\u8303\u56f4\uff1b\u4f7f\u7528\u7c7b\u578b\u63d0\u793a\uff1b\u9650\u5236\u533f\u540d\u51fd\u6570\u7684\u6df1\u5ea6\uff1b\u6b63\u786e\u5904\u7406\u5f02\u5e38\u3002<\/p>\n

\"PHP<\/p>\n

PHP \u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\u533f\u540d\u51fd\u6570\u6700\u4f73\u5b9e\u8df5<\/h2>\n

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

\u533f\u540d\u51fd\u6570\uff0c\u4e5f\u79f0\u4e3a\u95ed\u5305\uff0c\u5728 PHP \u4e2d\u662f\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u5de5\u5177\u3002\u5b83\u4eec\u5141\u8bb8\u60a8\u5b9a\u4e49\u5373\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757\uff0c\u65e0\u9700\u5c06\u5b83\u4eec\u5206\u914d\u7ed9\u53d8\u91cf\u3002\u5728\u672c\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u533f\u540d\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u5e76\u901a\u8fc7\u5b9e\u6218\u6848\u4f8b\u6765\u5c55\u793a\u5b83\u4eec\u7684\u7528\u6cd5\u3002<\/p>\n

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

PHP \u4e2d\u533f\u540d\u51fd\u6570\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

function ($parameters) {\n  \/\/ \u51fd\u6570\u4f53\n}<\/pre>\n
\u60a8\u53ef\u4ee5\u4f7f\u7528 fn<\/code> \u5173\u952e\u5b57\u6765\u7b80\u5316\u8bed\u6cd5\uff1a<\/p>\n
fn ($parameters) => $expression;<\/pre>\n
\u4f18\u70b9<\/strong><\/p>\n
\u4f7f\u7528\u533f\u540d\u51fd\u6570\u7684\u4e3b\u8981\u4f18\u70b9\u5982\u4e0b\uff1a<\/p>\n
    \n
  • \u63d0\u9ad8\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027<\/li>\n
  • \u51cf\u5c11\u4ee3\u7801\u91cd\u590d<\/li>\n
  • \u63d0\u9ad8\u4ee3\u7801\u7684\u6a21\u5757\u6027\u548c\u6548\u7387<\/li>\n<\/ul>\n
    \u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n
    \u4ee5\u4e0b\u662f\u4f7f\u7528\u533f\u540d\u51fd\u6570\u7684\u4e00\u4e9b\u6700\u4f73\u5b9e\u8df5\uff1a<\/p>\n
    1. \u4fdd\u6301\u51fd\u6570\u7b80\u6d01<\/strong><\/p>\n
    \u533f\u540d\u51fd\u6570\u5e94\u4fdd\u6301\u7b80\u77ed\u548c\u660e\u786e\u3002\u907f\u514d\u5c06\u590d\u6742\u6216\u5197\u957f\u7684\u4ee3\u7801\u5757\u653e\u5165\u533f\u540d\u51fd\u6570\u4e2d\u3002<\/p>\n
    2. \u6b63\u786e\u4f7f\u7528\u8303\u56f4<\/strong><\/p>\n
    \u533f\u540d\u51fd\u6570\u53ef\u4ee5\u8bbf\u95ee\u5176\u5b9a\u4e49\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\u3002\u6ce8\u610f\u6355\u83b7\u7684\u53d8\u91cf\u662f\u5426\u610f\u56fe\u660e\u786e\u3002<\/p>\n
    3. \u4f7f\u7528\u7c7b\u578b\u63d0\u793a<\/strong><\/p>\n
    \u7c7b\u578b\u63d0\u793a\u6709\u52a9\u4e8e\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u5065\u58ee\u6027\u3002\u4e3a\u533f\u540d\u51fd\u6570\u7684\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7c7b\u578b\u63d0\u4f9b\u63d0\u793a\u3002<\/p>\n
    4. \u9650\u5236\u533f\u540d\u51fd\u6570\u7684\u6df1\u5ea6<\/strong><\/p>\n
    \u533f\u540d\u51fd\u6570\u53ef\u4ee5\u76f8\u4e92\u5d4c\u5957\uff0c\u4f46\u5728\u590d\u6742\u7684\u60c5\u51b5\u4e0b\u4f1a\u96be\u4ee5\u8c03\u8bd5\u3002\u9650\u5236\u533f\u540d\u51fd\u6570\u5d4c\u5957\u7684\u6df1\u5ea6\u3002<\/p>\n
    5. \u6b63\u786e\u5904\u7406\u5f02\u5e38<\/strong><\/p>\n
    \u533f\u540d\u51fd\u6570\u4e2d\u672a\u6355\u83b7\u7684\u5f02\u5e38\u5c06\u4f20\u64ad\u5230\u8c03\u7528\u5b83\u4eec\u7684\u4e0a\u4e0b\u6587\u4e2d\u3002\u4f7f\u7528 try-catch<\/code> \u5757\u6765\u6b63\u786e\u5904\u7406\u5f02\u5e38\u3002<\/p>\n
    \u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
    \u8003\u8651\u4ee5\u4e0b\u573a\u666f\uff1a\u60a8\u9700\u8981\u4e00\u4e2a\u51fd\u6570\u6765\u6309\u964d\u5e8f\u5bf9\u4e00\u7ec4\u6570\u5b57\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n
    \u4f20\u7edf\u65b9\u5f0f\uff1a<\/strong><\/p>\n
    function sortByDescending($a, $b) {\n  return $b - $a;\n}<\/pre>\n
    \u533f\u540d\u51fd\u6570\uff1a<\/strong><\/p>\n
    usort($numbers, fn ($a, $b) => $b - $a);<\/pre>\n
    \u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u533f\u540d\u51fd\u6570\u5c06 usort()<\/code> \u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u4f7f\u7528\u3002\u5b83\u66f4\u7b80\u6d01\u9ad8\u6548\u3002<\/p>\n
    \u7ed3\u8bba<\/strong><\/p>\n
    \u9075\u5faa\u8fd9\u4e9b\u6700\u4f73\u5b9e\u8df5\u4f1a\u5e2e\u52a9\u60a8\u6709\u6548\u5730\u4f7f\u7528 PHP \u4e2d\u7684\u533f\u540d\u51fd\u6570\uff0c\u63d0\u9ad8\u60a8\u7684\u4ee3\u7801\u8d28\u91cf\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u7c73\u4e91\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP \u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\u533f\u540d\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5 \u6587\u7ae0\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300aPHP \u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\u533f\u540d\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\u300b\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01 PHP \u533f\u540d\u51fd\u6570\u6700\u4f73\u5b9e\u8df5\uff1a\u4fdd\u6301\u51fd\u6570\u7b80\u6d01\uff1b\u6b63\u786e\u4f7f\u7528\u8303\u56f4\uff1b\u4f7f\u7528\u7c7b\u578b\u63d0\u793a\uff1b\u9650\u5236\u533f\u540d\u51fd\u6570\u7684\u6df1\u5ea6\uff1b\u6b63\u786e\u5904\u7406\u5f02\u5e38\u3002 PHP \u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\u533f\u540d\u51fd\u6570\u6700\u4f73\u5b9e\u8df5 \u7b80\u4ecb \u533f\u540d\u51fd\u6570\uff0c\u4e5f\u79f0\u4e3a\u95ed\u5305\uff0c\u5728 PHP \u4e2d\u662f\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u5de5\u5177\u3002\u5b83\u4eec\u5141\u8bb8\u60a8\u5b9a\u4e49\u5373\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757\uff0c\u65e0\u9700\u5c06\u5b83\u4eec\u5206\u914d\u7ed9\u53d8\u91cf\u3002\u5728\u672c\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u533f\u540d\u51fd\u6570\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u5e76\u901a\u8fc7\u5b9e\u6218\u6848\u4f8b\u6765\u5c55\u793a\u5b83\u4eec\u7684\u7528\u6cd5\u3002 \u8bed\u6cd5 PHP \u4e2d\u533f\u540d\u51fd\u6570\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a function ($parameters) { \/\/ \u51fd\u6570\u4f53 } \u60a8\u53ef\u4ee5\u4f7f\u7528 fn \u5173\u952e\u5b57\u6765\u7b80\u5316\u8bed\u6cd5\uff1a fn ($parameters) => $expression; \u4f18\u70b9 \u4f7f\u7528\u533f\u540d\u51fd\u6570\u7684\u4e3b\u8981\u4f18\u70b9\u5982\u4e0b\uff1a \u63d0\u9ad8\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027 \u51cf\u5c11\u4ee3\u7801\u91cd\u590d \u63d0\u9ad8\u4ee3\u7801\u7684\u6a21\u5757\u6027\u548c\u6548\u7387 \u6700\u4f73\u5b9e\u8df5 \u4ee5\u4e0b\u662f\u4f7f\u7528\u533f\u540d\u51fd\u6570\u7684\u4e00\u4e9b\u6700\u4f73\u5b9e\u8df5\uff1a 1. \u4fdd\u6301\u51fd\u6570\u7b80\u6d01 \u533f\u540d\u51fd\u6570\u5e94\u4fdd\u6301\u7b80\u77ed\u548c\u660e\u786e\u3002\u907f\u514d\u5c06\u590d\u6742\u6216\u5197\u957f\u7684\u4ee3\u7801\u5757\u653e\u5165\u533f\u540d\u51fd\u6570\u4e2d\u3002 2. \u6b63\u786e\u4f7f\u7528\u8303\u56f4 \u533f\u540d\u51fd\u6570\u53ef\u4ee5\u8bbf\u95ee\u5176\u5b9a\u4e49\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\u3002\u6ce8\u610f\u6355\u83b7\u7684\u53d8\u91cf\u662f\u5426\u610f\u56fe\u660e\u786e\u3002 3. \u4f7f\u7528\u7c7b\u578b\u63d0\u793a \u7c7b\u578b\u63d0\u793a\u6709\u52a9\u4e8e\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u5065\u58ee\u6027\u3002\u4e3a\u533f\u540d\u51fd\u6570\u7684\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7c7b\u578b\u63d0\u4f9b\u63d0\u793a\u3002 4. \u9650\u5236\u533f\u540d\u51fd\u6570\u7684\u6df1\u5ea6 \u533f\u540d\u51fd\u6570\u53ef\u4ee5\u76f8\u4e92\u5d4c\u5957\uff0c\u4f46\u5728\u590d\u6742\u7684\u60c5\u51b5\u4e0b\u4f1a\u96be\u4ee5\u8c03\u8bd5\u3002\u9650\u5236\u533f\u540d\u51fd\u6570\u5d4c\u5957\u7684\u6df1\u5ea6\u3002 5. \u6b63\u786e\u5904\u7406\u5f02\u5e38 \u533f\u540d\u51fd\u6570\u4e2d\u672a\u6355\u83b7\u7684\u5f02\u5e38\u5c06\u4f20\u64ad\u5230\u8c03\u7528\u5b83\u4eec\u7684\u4e0a\u4e0b\u6587\u4e2d\u3002\u4f7f\u7528 try-catch \u5757\u6765\u6b63\u786e\u5904\u7406\u5f02\u5e38\u3002 \u5b9e\u6218\u6848\u4f8b \u8003\u8651\u4ee5\u4e0b\u573a\u666f\uff1a\u60a8\u9700\u8981\u4e00\u4e2a\u51fd\u6570\u6765\u6309\u964d\u5e8f\u5bf9\u4e00\u7ec4\u6570\u5b57\u8fdb\u884c\u6392\u5e8f\u3002 \u4f20\u7edf\u65b9\u5f0f\uff1a […]<\/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-47818","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47818","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=47818"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47818\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}