{"id":46696,"date":"2024-12-02T14:35:03","date_gmt":"2024-12-02T06:35:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46696\/"},"modified":"2024-12-02T14:35:03","modified_gmt":"2024-12-02T06:35:03","slug":"%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87-php-%e5%87%bd%e6%95%b0%e7%9a%84%e6%89%a7%e8%a1%8c%e6%95%88%e7%8e%87","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46696\/","title":{"rendered":"\u5982\u4f55\u63d0\u5347 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387"},"content":{"rendered":"

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

\u5982\u4f55\u63d0\u5347 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387<\/h1>\n

\u5b66\u4e60\u6587\u7ae0<\/span>\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0\u300a\u5982\u4f55\u63d0\u5347 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60\u6587\u7ae0<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

\u901a\u8fc7\u51cf\u5c11\u53c2\u6570\u4f20\u9012\u3001\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u3001\u7f13\u5b58\u51fd\u6570\u7ed3\u679c\u3001\u4f7f\u7528\u5e03\u5c14\u8868\u8fbe\u5f0f\u4f18\u5316\uff0c\u63d0\u5347 PHP \u51fd\u6570\u6267\u884c\u6548\u7387\u53ef\u663e\u8457\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u3002<\/p>\n

\"\u5982\u4f55\u63d0\u5347<\/p>\n

\u5982\u4f55\u63d0\u5347 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387<\/strong><\/p>\n

\u4f18\u5316 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387\u5bf9\u4e8e\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6280\u5de7\u53ef\u4ee5\u5e2e\u52a9\u60a8\u63d0\u5347\u51fd\u6570\u901f\u5ea6\uff1a<\/p>\n

1. \u907f\u514d\u4f7f\u7528\u5168\u5c40\u53d8\u91cf<\/strong><\/p>\n

\u5168\u5c40\u53d8\u91cf\u4f1a\u5728\u51fd\u6570\u6267\u884c\u65f6\u88ab\u590d\u5236\u5230\u672c\u5730\u4f5c\u7528\u57df\uff0c\u8fd9\u4f1a\u5e26\u6765\u4e0d\u5fc5\u8981\u7684\u5f00\u9500\u3002\u5c3d\u91cf\u5c06\u53d8\u91cf\u58f0\u660e\u4e3a\u5c40\u90e8\u53d8\u91cf\uff0c\u4ee5\u907f\u514d\u8fd9\u79cd\u5f00\u9500\u3002<\/p>\n

2. \u51cf\u5c11\u53c2\u6570\u4f20\u9012<\/strong><\/p>\n

\u51fd\u6570\u7684\u53c2\u6570\u4f20\u9012\u4f1a\u6d88\u8017\u65f6\u95f4\u3002\u5982\u679c\u60a8\u6709\u5927\u91cf\u53c2\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u6216\u5bf9\u8c61\u6765\u4f20\u9012\u5b83\u4eec\uff0c\u4ee5\u51cf\u5c11\u51fd\u6570\u8c03\u7528\u5f00\u9500\u3002<\/p>\n

3. \u4f7f\u7528\u5f15\u7528\u53c2\u6570<\/strong><\/p>\n

\u5982\u679c\u60a8\u9700\u8981\u4fee\u6539\u51fd\u6570\u4e2d\u7684\u53d8\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u3002\u8fd9\u53ef\u4ee5\u907f\u514d\u521b\u5efa\u51fd\u6570\u8c03\u7528\u4e2d\u7684\u53d8\u91cf\u526f\u672c\uff0c\u4ece\u800c\u63d0\u5347\u6548\u7387\u3002<\/p>\n

4. \u7f13\u5b58\u51fd\u6570\u7ed3\u679c<\/strong><\/p>\n

\u5982\u679c\u60a8\u9700\u8981\u591a\u6b21\u8c03\u7528\u540c\u4e00\u4e2a\u51fd\u6570\uff0c\u53ef\u4ee5\u5c06\u7ed3\u679c\u7f13\u5b58\u8d77\u6765\u3002\u8fd9\u53ef\u4ee5\u9632\u6b62\u51fd\u6570\u91cd\u590d\u6267\u884c\uff0c\u4ece\u800c\u8282\u7701\u65f6\u95f4\u3002<\/p>\n

5. \u4f7f\u7528\u5e03\u5c14\u8868\u8fbe\u5f0f\u4f18\u5316<\/strong><\/p>\n

\u4f7f\u7528\u5e03\u5c14\u8868\u8fbe\u5f0f\u4f18\u5316\u53ef\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u51fd\u6570\u8c03\u7528\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528isset()<\/code>\u51fd\u6570\u68c0\u67e5\u53d8\u91cf\u662f\u5426\u5df2\u8bbe\u7f6e\uff0c\u800c\u4e0d\u662f\u4f7f\u7528if (variable)<\/code>\u8bed\u53e5\u3002<\/p>\n

\u5b9e\u6218\u6848\u4f8b\uff1a\u4f18\u5316\u5b57\u7b26\u4e32\u8f6c\u6362\u51fd\u6570<\/strong><\/p>\n

\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u7f13\u5b58\u4f18\u5316strtoupper()<\/code>\u51fd\u6570\u7684\u793a\u4f8b\uff1a<\/p>\n

$cache = [];\n\nfunction strtoupper_cached($string) {\n  global $cache;\n\n  if (isset($cache[$string])) {\n    return $cache[$string];\n  }\n\n  $cache[$string] = strtoupper($string);\n\n  return $cache[$string];\n}<\/pre>\n
\u901a\u8fc7\u4f7f\u7528\u7f13\u5b58\uff0cstrtoupper_cached()<\/code>\u51fd\u6570\u5c06\u53ea\u5728\u7b2c\u4e00\u6b21\u8c03\u7528\u65f6\u6267\u884cstrtoupper()<\/code>\u64cd\u4f5c\uff0c\u4ece\u800c\u63d0\u5347\u540e\u7eed\u8abf\u7528\u7684\u6548\u7387\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u63d0\u5347 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8ephp,\u4f18\u5316\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u63d0\u5347 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387 \u5b66\u4e60\u6587\u7ae0\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0\u300a\u5982\u4f55\u63d0\u5347 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387\u300b\u5c06\u4f1a\u4ecb\u7ecd\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60\u6587\u7ae0\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01 \u901a\u8fc7\u51cf\u5c11\u53c2\u6570\u4f20\u9012\u3001\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u3001\u7f13\u5b58\u51fd\u6570\u7ed3\u679c\u3001\u4f7f\u7528\u5e03\u5c14\u8868\u8fbe\u5f0f\u4f18\u5316\uff0c\u63d0\u5347 PHP \u51fd\u6570\u6267\u884c\u6548\u7387\u53ef\u663e\u8457\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u3002 \u5982\u4f55\u63d0\u5347 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387 \u4f18\u5316 PHP \u51fd\u6570\u7684\u6267\u884c\u6548\u7387\u5bf9\u4e8e\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6280\u5de7\u53ef\u4ee5\u5e2e\u52a9\u60a8\u63d0\u5347\u51fd\u6570\u901f\u5ea6\uff1a 1. \u907f\u514d\u4f7f\u7528\u5168\u5c40\u53d8\u91cf \u5168\u5c40\u53d8\u91cf\u4f1a\u5728\u51fd\u6570\u6267\u884c\u65f6\u88ab\u590d\u5236\u5230\u672c\u5730\u4f5c\u7528\u57df\uff0c\u8fd9\u4f1a\u5e26\u6765\u4e0d\u5fc5\u8981\u7684\u5f00\u9500\u3002\u5c3d\u91cf\u5c06\u53d8\u91cf\u58f0\u660e\u4e3a\u5c40\u90e8\u53d8\u91cf\uff0c\u4ee5\u907f\u514d\u8fd9\u79cd\u5f00\u9500\u3002 2. \u51cf\u5c11\u53c2\u6570\u4f20\u9012 \u51fd\u6570\u7684\u53c2\u6570\u4f20\u9012\u4f1a\u6d88\u8017\u65f6\u95f4\u3002\u5982\u679c\u60a8\u6709\u5927\u91cf\u53c2\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u6216\u5bf9\u8c61\u6765\u4f20\u9012\u5b83\u4eec\uff0c\u4ee5\u51cf\u5c11\u51fd\u6570\u8c03\u7528\u5f00\u9500\u3002 3. \u4f7f\u7528\u5f15\u7528\u53c2\u6570 \u5982\u679c\u60a8\u9700\u8981\u4fee\u6539\u51fd\u6570\u4e2d\u7684\u53d8\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u3002\u8fd9\u53ef\u4ee5\u907f\u514d\u521b\u5efa\u51fd\u6570\u8c03\u7528\u4e2d\u7684\u53d8\u91cf\u526f\u672c\uff0c\u4ece\u800c\u63d0\u5347\u6548\u7387\u3002 4. \u7f13\u5b58\u51fd\u6570\u7ed3\u679c \u5982\u679c\u60a8\u9700\u8981\u591a\u6b21\u8c03\u7528\u540c\u4e00\u4e2a\u51fd\u6570\uff0c\u53ef\u4ee5\u5c06\u7ed3\u679c\u7f13\u5b58\u8d77\u6765\u3002\u8fd9\u53ef\u4ee5\u9632\u6b62\u51fd\u6570\u91cd\u590d\u6267\u884c\uff0c\u4ece\u800c\u8282\u7701\u65f6\u95f4\u3002 5. \u4f7f\u7528\u5e03\u5c14\u8868\u8fbe\u5f0f\u4f18\u5316 \u4f7f\u7528\u5e03\u5c14\u8868\u8fbe\u5f0f\u4f18\u5316\u53ef\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u51fd\u6570\u8c03\u7528\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528isset()\u51fd\u6570\u68c0\u67e5\u53d8\u91cf\u662f\u5426\u5df2\u8bbe\u7f6e\uff0c\u800c\u4e0d\u662f\u4f7f\u7528if (variable)\u8bed\u53e5\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a\u4f18\u5316\u5b57\u7b26\u4e32\u8f6c\u6362\u51fd\u6570 \u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u7f13\u5b58\u4f18\u5316strtoupper()\u51fd\u6570\u7684\u793a\u4f8b\uff1a $cache = []; function strtoupper_cached($string) { global $cache; if (isset($cache[$string])) { return $cache[$string]; } $cache[$string] = strtoupper($string); return $cache[$string]; } \u901a\u8fc7\u4f7f\u7528\u7f13\u5b58\uff0cstrtoupper_cached()\u51fd\u6570\u5c06\u53ea\u5728\u7b2c\u4e00\u6b21\u8c03\u7528\u65f6\u6267\u884cstrtoupper()\u64cd\u4f5c\uff0c\u4ece\u800c\u63d0\u5347\u540e\u7eed\u8abf\u7528\u7684\u6548\u7387\u3002 \u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u63d0\u5347 […]<\/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-46696","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46696","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=46696"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46696\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}