{"id":47631,"date":"2024-12-02T14:38:59","date_gmt":"2024-12-02T06:38:59","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47631\/"},"modified":"2024-12-02T14:38:59","modified_gmt":"2024-12-02T06:38:59","slug":"php%e5%87%bd%e6%95%b0%e4%bd%9c%e7%94%a8%e5%9f%9f%e5%af%b9%e5%8f%98%e9%87%8f%e8%ae%bf%e9%97%ae%e4%bc%98%e5%85%88%e7%ba%a7%e7%9a%84%e6%84%8f%e4%b9%89","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47631\/","title":{"rendered":"PHP\u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49"},"content":{"rendered":"

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

PHP\u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49<\/h1>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300aPHP\u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

\u5728 PHP \u51fd\u6570\u4f5c\u7528\u57df\u4e2d\uff0c\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u6309\u987a\u5e8f\u5982\u4e0b\uff1a\u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u53d8\u91cf\u5168\u5c40\u53d8\u91cf\uff08\u4f7f\u7528 global \u5173\u952e\u5b57\u8bbf\u95ee\uff09\u8d85\u5168\u5c40\u53d8\u91cf\uff08\u5982 $_SERVER\uff09\u51fd\u6570\u5185\u90e8\u7684\u53d8\u91cf\u4f18\u5148\u7ea7\u6700\u9ad8\uff0c\u5176\u6b21\u662f\u5168\u5c40\u53d8\u91cf\u548c\u8d85\u5168\u5c40\u53d8\u91cf\u3002\u51fd\u6570\u5916\u7684\u53d8\u91cf\u65e0\u6cd5\u8bbf\u95ee\u51fd\u6570\u5185\u7684\u5c40\u90e8\u53d8\u91cf\u3002<\/p>\n

\"PHP\u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49\u63d2\u56fe\"<\/p>\n

PHP \u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49<\/strong><\/p>\n

\u5728 PHP \u4e2d\uff0c\u53d8\u91cf\u4f5c\u7528\u57df\u51b3\u5b9a\u4e86\u53d8\u91cf\u5728\u7279\u5b9a\u4ee3\u7801\u5757\u4e2d\u53ef\u4ee5\u8bbf\u95ee\u7684\u8303\u56f4\u3002\u51fd\u6570\u4f5c\u7528\u57df\u662f\u4e00\u79cd\u7279\u5b9a\u7684\u4f5c\u7528\u57df\u7c7b\u578b\uff0c\u5b83\u4e3a\u51fd\u6570\u4e2d\u7684\u53d8\u91cf\u5b9a\u4e49\u4e86\u81ea\u5df1\u7684\u4f5c\u7528\u57df\u7ea7\u522b\u3002<\/p>\n

\u4f5c\u7528\u57df\u89c4\u5219<\/strong><\/p>\n

\u5728\u51fd\u6570\u4f5c\u7528\u57df\u4e2d\uff0c\u51fd\u6570\u5185\u58f0\u660e\u7684\u53d8\u91cf\u5728\u51fd\u6570\u5916\u90e8\u4e0d\u53ef\u8bbf\u95ee\u3002\u4ece\u5916\u90e8\u5230\u51fd\u6570\u5185\u90e8\u8bbf\u95ee\u53d8\u91cf\u65f6\uff0c\u4f18\u5148\u7ea7\u5982\u4e0b\uff1a<\/p>\n

    \n
  1. \u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u53d8\u91cf<\/li>\n
  2. \u5168\u5c40\u53d8\u91cf\uff08\u4f7f\u7528 global<\/code> \u5173\u952e\u5b57\u8bbf\u95ee\uff09<\/li>\n
  3. \u8d85\u5168\u5c40\u53d8\u91cf\uff08\u5982 $_SERVER<\/code>\uff09<\/li>\n<\/ol>\n

    \u4e3e\u4f8b\u8bf4\u660e<\/strong><\/p>\n

    \u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n

    function myFunction() {\n  $localVariable = 10; \/\/ \u5c40\u90e8\u53d8\u91cf\n  $globalVariable = 20; \/\/ \u5168\u5c40\u53d8\u91cf\uff0c\u5728\u51fd\u6570\u5916\u58f0\u660e\n\n  echo $localVariable; \/\/ \u8f93\u51fa 10\n  echo $globalVariable; \/\/ \u8f93\u51fa 20\n}\n\n\/\/ \u51fd\u6570\u5916\u90e8\u8bbf\u95ee\u5c40\u90e8\u53d8\u91cf\necho $localVariable; \/\/ \u62a5\u9519\uff0c\u53d8\u91cf\u672a\u5b9a\u4e49<\/pre>\n
    \u5728 myFunction()<\/code> \u51fd\u6570\u4e2d\uff0c\u5c40\u90e8\u53d8\u91cf $localVariable<\/code> \u5177\u6709\u6bd4\u5168\u5c40\u53d8\u91cf $globalVariable<\/code> \u66f4\u9ad8\u7684\u4f18\u5148\u7ea7\u3002\u56e0\u6b64\uff0c\u51fd\u6570\u5185\u90e8\u53ef\u4ee5\u8bbf\u95ee\u8fd9\u4e24\u4e2a\u53d8\u91cf\u3002\u7136\u800c\uff0c\u5f53\u51fd\u6570\u5916\u90e8\u5c1d\u8bd5\u8bbf\u95ee $localVariable<\/code> \u65f6\uff0c\u7531\u4e8e\u8d85\u51fa\u4e86\u5176\u4f5c\u7528\u57df\uff0c\u5c06\u62a5\u9519\u3002<\/p>\n
    \u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
    \u51fd\u6570\u4f5c\u7528\u57df\u5728\u9632\u6b62\u547d\u540d\u51b2\u7a81\u548c\u907f\u514d\u610f\u5916\u4fee\u6539\u53d8\u91cf\u65f6\u975e\u5e38\u6709\u7528\u3002\u4f8b\u5982\uff0c\u5728\u5904\u7406\u7528\u6237\u6570\u636e\u65f6\uff0c\u6bcf\u4e2a\u51fd\u6570\u53ef\u4ee5\u5b9a\u4e49\u81ea\u5df1\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u8fd9\u786e\u4fdd\u4e86\u6570\u636e\u7684\u9694\u79bb\u548c\u5b89\u5168\u6027\u3002<\/p>\n
    \u7ed3\u8bba\uff1a<\/strong><\/p>\n
    \u7406\u89e3 PHP \u4e2d\u51fd\u6570\u4f5c\u7528\u57df\u7684\u4f18\u5148\u7ea7\u5bf9\u4e8e\u7f16\u5199\u5065\u58ee\u4e14\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u6b63\u786e\u5b9a\u4e49\u53d8\u91cf\u7684\u4f5c\u7528\u57df\uff0c\u53ef\u4ee5\u9632\u6b62\u610f\u5916\u8bbf\u95ee\u5e76\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u9760\u6027\u3002<\/p>\n
    \u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aPHP\u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP\u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49 \u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300aPHP\u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49\u300b\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01 \u5728 PHP \u51fd\u6570\u4f5c\u7528\u57df\u4e2d\uff0c\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u6309\u987a\u5e8f\u5982\u4e0b\uff1a\u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u53d8\u91cf\u5168\u5c40\u53d8\u91cf\uff08\u4f7f\u7528 global \u5173\u952e\u5b57\u8bbf\u95ee\uff09\u8d85\u5168\u5c40\u53d8\u91cf\uff08\u5982 $_SERVER\uff09\u51fd\u6570\u5185\u90e8\u7684\u53d8\u91cf\u4f18\u5148\u7ea7\u6700\u9ad8\uff0c\u5176\u6b21\u662f\u5168\u5c40\u53d8\u91cf\u548c\u8d85\u5168\u5c40\u53d8\u91cf\u3002\u51fd\u6570\u5916\u7684\u53d8\u91cf\u65e0\u6cd5\u8bbf\u95ee\u51fd\u6570\u5185\u7684\u5c40\u90e8\u53d8\u91cf\u3002 PHP \u51fd\u6570\u4f5c\u7528\u57df\u5bf9\u53d8\u91cf\u8bbf\u95ee\u4f18\u5148\u7ea7\u7684\u610f\u4e49 \u5728 PHP \u4e2d\uff0c\u53d8\u91cf\u4f5c\u7528\u57df\u51b3\u5b9a\u4e86\u53d8\u91cf\u5728\u7279\u5b9a\u4ee3\u7801\u5757\u4e2d\u53ef\u4ee5\u8bbf\u95ee\u7684\u8303\u56f4\u3002\u51fd\u6570\u4f5c\u7528\u57df\u662f\u4e00\u79cd\u7279\u5b9a\u7684\u4f5c\u7528\u57df\u7c7b\u578b\uff0c\u5b83\u4e3a\u51fd\u6570\u4e2d\u7684\u53d8\u91cf\u5b9a\u4e49\u4e86\u81ea\u5df1\u7684\u4f5c\u7528\u57df\u7ea7\u522b\u3002 \u4f5c\u7528\u57df\u89c4\u5219 \u5728\u51fd\u6570\u4f5c\u7528\u57df\u4e2d\uff0c\u51fd\u6570\u5185\u58f0\u660e\u7684\u53d8\u91cf\u5728\u51fd\u6570\u5916\u90e8\u4e0d\u53ef\u8bbf\u95ee\u3002\u4ece\u5916\u90e8\u5230\u51fd\u6570\u5185\u90e8\u8bbf\u95ee\u53d8\u91cf\u65f6\uff0c\u4f18\u5148\u7ea7\u5982\u4e0b\uff1a \u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u53d8\u91cf \u5168\u5c40\u53d8\u91cf\uff08\u4f7f\u7528 global \u5173\u952e\u5b57\u8bbf\u95ee\uff09 \u8d85\u5168\u5c40\u53d8\u91cf\uff08\u5982 $_SERVER\uff09 \u4e3e\u4f8b\u8bf4\u660e \u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\uff1a function myFunction() { $localVariable = 10; \/\/ \u5c40\u90e8\u53d8\u91cf $globalVariable = 20; \/\/ \u5168\u5c40\u53d8\u91cf\uff0c\u5728\u51fd\u6570\u5916\u58f0\u660e echo $localVariable; \/\/ \u8f93\u51fa 10 echo $globalVariable; \/\/ \u8f93\u51fa 20 } \/\/ \u51fd\u6570\u5916\u90e8\u8bbf\u95ee\u5c40\u90e8\u53d8\u91cf echo $localVariable; \/\/ \u62a5\u9519\uff0c\u53d8\u91cf\u672a\u5b9a\u4e49 \u5728 myFunction() […]<\/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-47631","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47631","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=47631"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47631\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}