{"id":47601,"date":"2024-12-02T08:35:07","date_gmt":"2024-12-02T00:35:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47601\/"},"modified":"2024-12-02T08:35:07","modified_gmt":"2024-12-02T00:35:07","slug":"php-%e5%87%bd%e6%95%b0%e7%b1%bb%e5%9e%8b%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%8c%e5%a6%82%e4%bd%95%e5%8c%ba%e5%88%86%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47601\/","title":{"rendered":"PHP \u51fd\u6570\u7c7b\u578b\u6709\u54ea\u4e9b\uff0c\u5982\u4f55\u533a\u5206\uff1f"},"content":{"rendered":"

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

PHP \u51fd\u6570\u7c7b\u578b\u6709\u54ea\u4e9b\uff0c\u5982\u4f55\u533a\u5206\uff1f<\/h1>\n

\u76ee\u524d\u7c73\u4e91\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e\u6587\u7ae0<\/span>\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587\u300aPHP \u51fd\u6570\u7c7b\u578b\u6709\u54ea\u4e9b\uff0c\u5982\u4f55\u533a\u5206\uff1f\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60\u6587\u7ae0<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~<\/p>\n

PHP \u51fd\u6570\u53ef\u5206\u4e3a\u5185\u7f6e\u51fd\u6570\u548c\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u3002\u5185\u7f6e\u51fd\u6570\u7531 PHP \u5185\u6838\u9884\u5b9a\u4e49\uff0c\u63d0\u4f9b\u57fa\u672c\u529f\u80fd\uff0c\u800c\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u7531\u5f00\u53d1\u4eba\u5458\u521b\u5efa\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u4efb\u52a1\u3002\u533a\u5206\u8fd9\u4e24\u79cd\u7c7b\u578b\u7684\u51fd\u6570\u7684\u65b9\u6cd5\u5305\u62ec\u68c0\u67e5\u51fd\u6570\u662f\u5426\u5b58\u5728\u4e8e\u5185\u7f6e\u51fd\u6570\u5217\u8868\u4e2d\u6216\u4f7f\u7528 FUNCTION \u9b54\u672f\u51fd\u6570\u3002<\/p>\n

\"PHP<\/p>\n

PHP \u51fd\u6570\u7c7b\u578b\u7684\u7406\u89e3\u548c\u533a\u5206<\/strong><\/p>\n

\u5bfc\u8a00<\/strong><\/p>\n

PHP \u51fd\u6570\u662f\u53ef\u91cd\u7528\u7684\u4ee3\u7801\u5757\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u4efb\u52a1\u3002PHP \u652f\u6301\u591a\u79cd\u51fd\u6570\u7c7b\u578b\uff0c\u6bcf\u79cd\u7c7b\u578b\u90fd\u6709\u5176\u72ec\u7279\u7684\u76ee\u7684\u548c\u7279\u6027\u3002\u7406\u89e3\u548c\u533a\u5206\u4e0d\u540c\u7684\u51fd\u6570\u7c7b\u578b\u5bf9\u4e8e\u6709\u6548\u5730\u7f16\u5199 PHP \u4ee3\u7801\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

\u51fd\u6570\u7c7b\u578b<\/strong><\/p>\n

PHP \u51fd\u6570\u7c7b\u578b\u4e3b\u8981\u6709\u4e24\u79cd\uff1a<\/p>\n

    \n
  1. \u5185\u7f6e\u51fd\u6570<\/strong>\uff1a\u8fd9\u4e9b\u662f PHP \u5185\u6838\u4e2d\u9884\u5b9a\u4e49\u7684\u51fd\u6570\uff0c\u63d0\u4f9b\u5e38\u89c1\u529f\u80fd\uff0c\u5982\u5b57\u7b26\u4e32\u64cd\u4f5c\u3001\u6570\u5b66\u8fd0\u7b97\u548c\u6570\u636e\u5e93\u8fde\u63a5\u3002<\/li>\n
  2. \u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570<\/strong>\uff1a\u8fd9\u4e9b\u51fd\u6570\u7531\u5f00\u53d1\u4eba\u5458\u521b\u5efa\uff0c\u4ee5\u6267\u884c\u5e94\u7528\u7a0b\u5e8f\u7279\u5b9a\u7684\u4efb\u52a1\u3002\u5b83\u4eec\u4f7f\u7528 function<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u3002<\/li>\n<\/ol>\n

    \u533a\u5206\u51fd\u6570\u7c7b\u578b<\/strong><\/p>\n

    \u8981\u533a\u5206\u5185\u7f6e\u51fd\u6570\u548c\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n

    \/\/ \u68c0\u67e5\u51fd\u6570\u662f\u5426\u5b58\u5728\u4e8e\u5185\u7f6e\u51fd\u6570\u5217\u8868\u4e2d\nif (function_exists('strlen')) {\n    \/\/ strlen \u662f\u4e00\u4e2a\u5185\u7f6e\u51fd\u6570\n} else {\n    \/\/ strlen \u662f\u4e00\u4e2a\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\n}\n\n\/\/ \u4f7f\u7528\u9b54\u672f\u51fd\u6570 __FUNCTION__\nif (__FUNCTION__ === 'strlen') {\n    \/\/ strlen \u662f\u4e00\u4e2a\u5185\u7f6e\u51fd\u6570\n} else {\n    \/\/ strlen \u662f\u4e00\u4e2a\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\n}<\/pre>\n
    \u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
    \u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n
    \/\/ \u5185\u7f6e\u51fd\u6570\u793a\u4f8b\uff1a\n$string = strlen(\"Hello World!\");\n\n\/\/ \u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u793a\u4f8b\uff1a\nfunction calculateArea($length, $width) {\n    return $length * $width;\n}<\/pre>\n
    \u5728\u7b2c\u4e00\u4e2a\u793a\u4f8b\u4e2d\uff0cstrlen<\/code> \u662f\u4e00\u4e2a\u7528\u4e8e\u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u5185\u7f6e\u51fd\u6570\u3002\u5728\u7b2c\u4e8c\u4e2a\u793a\u4f8b\u4e2d\uff0ccalculateArea<\/code> \u662f\u4e00\u4e2a\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u7528\u4e8e\u8ba1\u7b97\u77e9\u5f62\u7684\u9762\u79ef\u3002<\/p>\n
    \u7ed3\u8bba<\/strong><\/p>\n
    PHP \u63d0\u4f9b\u4e86\u5185\u7f6e\u51fd\u6570\u548c\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u4e24\u79cd\u7c7b\u578b\u7684\u51fd\u6570\u3002\u7406\u89e3\u548c\u533a\u5206\u8fd9\u4e9b\u7c7b\u578b\u975e\u5e38\u91cd\u8981\uff0c\u8fd9\u6709\u52a9\u4e8e\u7f16\u5199\u66f4\u6e05\u6670\u3001\u66f4\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u3002<\/p>\n
    \u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aPHP \u51fd\u6570\u7c7b\u578b\u6709\u54ea\u4e9b\uff0c\u5982\u4f55\u533a\u5206\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u7c73\u4e91\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP \u51fd\u6570\u7c7b\u578b\u6709\u54ea\u4e9b\uff0c\u5982\u4f55\u533a\u5206\uff1f \u76ee\u524d\u7c73\u4e91\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587\u300aPHP \u51fd\u6570\u7c7b\u578b\u6709\u54ea\u4e9b\uff0c\u5982\u4f55\u533a\u5206\uff1f\u300b\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60\u6587\u7ae0\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~ PHP \u51fd\u6570\u53ef\u5206\u4e3a\u5185\u7f6e\u51fd\u6570\u548c\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u3002\u5185\u7f6e\u51fd\u6570\u7531 PHP \u5185\u6838\u9884\u5b9a\u4e49\uff0c\u63d0\u4f9b\u57fa\u672c\u529f\u80fd\uff0c\u800c\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u7531\u5f00\u53d1\u4eba\u5458\u521b\u5efa\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u4efb\u52a1\u3002\u533a\u5206\u8fd9\u4e24\u79cd\u7c7b\u578b\u7684\u51fd\u6570\u7684\u65b9\u6cd5\u5305\u62ec\u68c0\u67e5\u51fd\u6570\u662f\u5426\u5b58\u5728\u4e8e\u5185\u7f6e\u51fd\u6570\u5217\u8868\u4e2d\u6216\u4f7f\u7528 FUNCTION \u9b54\u672f\u51fd\u6570\u3002 PHP \u51fd\u6570\u7c7b\u578b\u7684\u7406\u89e3\u548c\u533a\u5206 \u5bfc\u8a00 PHP \u51fd\u6570\u662f\u53ef\u91cd\u7528\u7684\u4ee3\u7801\u5757\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u4efb\u52a1\u3002PHP \u652f\u6301\u591a\u79cd\u51fd\u6570\u7c7b\u578b\uff0c\u6bcf\u79cd\u7c7b\u578b\u90fd\u6709\u5176\u72ec\u7279\u7684\u76ee\u7684\u548c\u7279\u6027\u3002\u7406\u89e3\u548c\u533a\u5206\u4e0d\u540c\u7684\u51fd\u6570\u7c7b\u578b\u5bf9\u4e8e\u6709\u6548\u5730\u7f16\u5199 PHP \u4ee3\u7801\u81f3\u5173\u91cd\u8981\u3002 \u51fd\u6570\u7c7b\u578b PHP \u51fd\u6570\u7c7b\u578b\u4e3b\u8981\u6709\u4e24\u79cd\uff1a \u5185\u7f6e\u51fd\u6570\uff1a\u8fd9\u4e9b\u662f PHP \u5185\u6838\u4e2d\u9884\u5b9a\u4e49\u7684\u51fd\u6570\uff0c\u63d0\u4f9b\u5e38\u89c1\u529f\u80fd\uff0c\u5982\u5b57\u7b26\u4e32\u64cd\u4f5c\u3001\u6570\u5b66\u8fd0\u7b97\u548c\u6570\u636e\u5e93\u8fde\u63a5\u3002 \u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff1a\u8fd9\u4e9b\u51fd\u6570\u7531\u5f00\u53d1\u4eba\u5458\u521b\u5efa\uff0c\u4ee5\u6267\u884c\u5e94\u7528\u7a0b\u5e8f\u7279\u5b9a\u7684\u4efb\u52a1\u3002\u5b83\u4eec\u4f7f\u7528 function \u5173\u952e\u5b57\u5b9a\u4e49\u3002 \u533a\u5206\u51fd\u6570\u7c7b\u578b \u8981\u533a\u5206\u5185\u7f6e\u51fd\u6570\u548c\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a \/\/ \u68c0\u67e5\u51fd\u6570\u662f\u5426\u5b58\u5728\u4e8e\u5185\u7f6e\u51fd\u6570\u5217\u8868\u4e2d if (function_exists(‘strlen’)) { \/\/ strlen \u662f\u4e00\u4e2a\u5185\u7f6e\u51fd\u6570 } else { \/\/ strlen \u662f\u4e00\u4e2a\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570 } \/\/ \u4f7f\u7528\u9b54\u672f\u51fd\u6570 __FUNCTION__ if (__FUNCTION__ === ‘strlen’) { \/\/ strlen \u662f\u4e00\u4e2a\u5185\u7f6e\u51fd\u6570 […]<\/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-47601","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47601","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=47601"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47601\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}