{"id":46798,"date":"2024-12-02T15:00:22","date_gmt":"2024-12-02T07:00:22","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46798\/"},"modified":"2024-12-02T15:00:22","modified_gmt":"2024-12-02T07:00:22","slug":"php%e5%87%bd%e6%95%b0%e7%9a%84%e5%9d%97%e4%bd%9c%e7%94%a8%e5%9f%9f%e5%92%8c%e5%85%a8%e5%b1%80%e4%bd%9c%e7%94%a8%e5%9f%9f%e7%9a%84%e6%a6%82%e5%bf%b5%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46798\/","title":{"rendered":"PHP\u51fd\u6570\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u6982\u5ff5\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP\u51fd\u6570\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u6982\u5ff5\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u6211\u4eec\u53c8\u89c1\u9762\u4e86\u554a~\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP\u51fd\u6570\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u6982\u5ff5\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\u7684\u5185\u5bb9\u4e2d\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u3002\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u77e5\u8bc6\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\uff0c\u4ee5\u540e\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u66f4\u591a<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u6587\u7ae0\uff0c\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u8fdb\u6b65\uff01\u4e0b\u9762\u5c31\u5f00\u59cb\u672c\u6587\u7684\u6b63\u5f0f\u5185\u5bb9~<\/p>\n<p>PHP \u4e2d\u6709\u4e24\u4e2a\u4e3b\u8981\u4f5c\u7528\u57df\uff1a\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u3002\u5757\u4f5c\u7528\u57df\u5728\u4ee3\u7801\u5757\u5185\u6709\u6548\uff0c\u4ec5\u5728\u8be5\u5757\u5185\u53ef\u89c1\u3002\u5168\u5c40\u4f5c\u7528\u57df\u5728\u6574\u4e2a\u811a\u672c\u4e2d\u6709\u6548\uff0c\u53ef\u4ee5\u5728\u4efb\u4f55\u4f4d\u7f6e\u8bbf\u95ee\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5728\u51fd\u6570\u5185\u58f0\u660e\u53d8\u91cf\uff0c\u5219\u8be5\u53d8\u91cf\u4ec5\u5728\u8be5\u51fd\u6570\u5185\u53ef\u89c1\uff08\u5757\u4f5c\u7528\u57df\uff09\uff1b\u5982\u679c\u5728\u811a\u672c\u5f00\u59cb\u5904\u58f0\u660e\u53d8\u91cf\uff0c\u5219\u8be5\u53d8\u91cf\u53ef\u4ee5\u5728\u811a\u672c\u4e2d\u7684\u4efb\u4f55\u4f4d\u7f6e\u8bbf\u95ee\uff08\u5168\u5c40\u4f5c\u7528\u57df\uff09\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729846953671b5ea9d27e9.jpg\" class=\"aligncenter\" title=\"PHP\u51fd\u6570\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u6982\u5ff5\u662f\u4ec0\u4e48\uff1f\u63d2\u56fe\" alt=\"PHP\u51fd\u6570\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u6982\u5ff5\u662f\u4ec0\u4e48\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u4e2d\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df<\/strong><\/p>\n<p>\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u7528\u4e8e\u786e\u5b9a\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u8bbf\u95ee\u7ed9\u5b9a\u53d8\u91cf\u7684\u4ee3\u7801\u90e8\u5206\u3002PHP \u4e2d\u6709\u4e24\u79cd\u4e3b\u8981\u7684\u4f5c\u7528\u57df\uff1a\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u3002<\/p>\n<p><strong>\u5757\u4f5c\u7528\u57df<\/strong><\/p>\n<p>\u5757\u4f5c\u7528\u57df\u5728\u4ee3\u7801\u5757\u5185\u6709\u6548\uff0c\u4f8b\u5982\u51fd\u6570\u3001\u65b9\u6cd5\u6216\u533f\u540d\u51fd\u6570\u3002\u5728\u5757\u4f5c\u7528\u57df\u5185\u58f0\u660e\u7684\u53d8\u91cf\u4ec5\u5728\u8be5\u5757\u5185\u53ef\u89c1\u3002<\/p>\n<pre>function myFunction() {\n    \/\/ \u58f0\u660e\u5757\u4f5c\u7528\u57df\u53d8\u91cf\n    $blockVariable = '\u5757\u4f5c\u7528\u57df\u53d8\u91cf';\n}\n\n\/\/ \u65e0\u6cd5\u8bbf\u95ee\u5757\u4f5c\u7528\u57df\u53d8\u91cf\necho $blockVariable; \/\/ \u9519\u8bef<\/pre>\n<p><strong>\u5168\u5c40\u4f5c\u7528\u57df<\/strong><\/p>\n<p>\u5168\u5c40\u4f5c\u7528\u57df\u5728\u6574\u4e2a\u811a\u672c\u4e2d\u6709\u6548\u3002\u5728\u5168\u5c40\u4f5c\u7528\u57df\u4e2d\u58f0\u660e\u7684\u53d8\u91cf\u53ef\u4ee5\u5728\u811a\u672c\u4e2d\u7684\u4efb\u4f55\u4f4d\u7f6e\u8bbf\u95ee\u3002<\/p>\n<pre>\/\/ \u58f0\u660e\u5168\u5c40\u53d8\u91cf\n$globalVariable = '\u5168\u5c40\u53d8\u91cf';\n\nfunction myFunction() {\n    \/\/ \u53ef\u4ee5\u8bbf\u95ee\u5168\u5c40\u53d8\u91cf\n    echo $globalVariable;\n}\n\necho $globalVariable; \/\/ \u8f93\u51fa\uff1a\u5168\u5c40\u53d8\u91cf<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u5728\u4ee5\u4e0b\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf\u548c\u4e00\u4e2a\u5757\u4f5c\u7528\u57df\u53d8\u91cf\u3002\u5728\u51fd\u6570\u5185\u90e8\uff0c\u6211\u4eec\u4f7f\u7528 <code>global<\/code> \u5173\u952e\u5b57\u6765\u8bbf\u95ee\u5168\u5c40\u53d8\u91cf\u3002<\/p>\n<pre>$globalVariable = '\u5168\u5c40\u53d8\u91cf';\n\nfunction myFunction() {\n    global $globalVariable;\n\n    \/\/ \u58f0\u660e\u5757\u4f5c\u7528\u57df\u53d8\u91cf\n    $blockVariable = '\u5757\u4f5c\u7528\u57df\u53d8\u91cf';\n\n    echo \"\u5168\u5c40\u53d8\u91cf\uff1a$globalVariable&lt;br&gt;\";\n    echo \"\u5757\u4f5c\u7528\u57df\u53d8\u91cf\uff1a$blockVariable&lt;br&gt;\";\n}\n\nmyFunction();\n\necho \"\u5168\u5c40\u53d8\u91cf\uff1a$globalVariable&lt;br&gt;\";\n\/\/ \u65e0\u6cd5\u8bbf\u95ee\u5757\u4f5c\u7528\u57df\u53d8\u91cf\necho \"\u5757\u4f5c\u7528\u57df\u53d8\u91cf\uff1a$blockVariable\"; \/\/ \u9519\u8bef<\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>\u5168\u5c40\u53d8\u91cf\uff1a\u5168\u5c40\u53d8\u91cf\n\u5757\u4f5c\u7528\u57df\u53d8\u91cf\uff1a\u5757\u4f5c\u7528\u57df\u53d8\u91cf\n\u5168\u5c40\u53d8\u91cf\uff1a\u5168\u5c40\u53d8\u91cf\n\u5757\u4f5c\u7528\u57df\u53d8\u91cf\uff1a\u9519\u8bef<\/pre>\n<p>\u4e86\u89e3\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u5e2e\u52a9\u60a8\u907f\u514d\u9519\u8bef\u5e76\u7f16\u5199\u5e72\u51c0\u9ad8\u6548\u7684\u4ee3\u7801\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aPHP\u51fd\u6570\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u6982\u5ff5\u662f\u4ec0\u4e48\uff1f\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":"<p>PHP\u51fd\u6570\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u6982\u5ff5\u662f\u4ec0\u4e48\uff1f \u5927\u5bb6\u597d\uff0c\u6211\u4eec\u53c8\u89c1\u9762\u4e86\u554a~\u672c\u6587\u300aPHP\u51fd\u6570\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u6982\u5ff5\u662f\u4ec0\u4e48\uff1f\u300b\u7684\u5185\u5bb9\u4e2d\u5c06\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u3002\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\uff0c\u4ee5\u540e\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u66f4\u591a\u6587\u7ae0\u76f8\u5173\u6587\u7ae0\uff0c\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u8fdb\u6b65\uff01\u4e0b\u9762\u5c31\u5f00\u59cb\u672c\u6587\u7684\u6b63\u5f0f\u5185\u5bb9~ PHP \u4e2d\u6709\u4e24\u4e2a\u4e3b\u8981\u4f5c\u7528\u57df\uff1a\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u3002\u5757\u4f5c\u7528\u57df\u5728\u4ee3\u7801\u5757\u5185\u6709\u6548\uff0c\u4ec5\u5728\u8be5\u5757\u5185\u53ef\u89c1\u3002\u5168\u5c40\u4f5c\u7528\u57df\u5728\u6574\u4e2a\u811a\u672c\u4e2d\u6709\u6548\uff0c\u53ef\u4ee5\u5728\u4efb\u4f55\u4f4d\u7f6e\u8bbf\u95ee\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5728\u51fd\u6570\u5185\u58f0\u660e\u53d8\u91cf\uff0c\u5219\u8be5\u53d8\u91cf\u4ec5\u5728\u8be5\u51fd\u6570\u5185\u53ef\u89c1\uff08\u5757\u4f5c\u7528\u57df\uff09\uff1b\u5982\u679c\u5728\u811a\u672c\u5f00\u59cb\u5904\u58f0\u660e\u53d8\u91cf\uff0c\u5219\u8be5\u53d8\u91cf\u53ef\u4ee5\u5728\u811a\u672c\u4e2d\u7684\u4efb\u4f55\u4f4d\u7f6e\u8bbf\u95ee\uff08\u5168\u5c40\u4f5c\u7528\u57df\uff09\u3002 PHP \u4e2d\u7684\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df \u53d8\u91cf\u7684\u4f5c\u7528\u57df\u7528\u4e8e\u786e\u5b9a\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u8bbf\u95ee\u7ed9\u5b9a\u53d8\u91cf\u7684\u4ee3\u7801\u90e8\u5206\u3002PHP \u4e2d\u6709\u4e24\u79cd\u4e3b\u8981\u7684\u4f5c\u7528\u57df\uff1a\u5757\u4f5c\u7528\u57df\u548c\u5168\u5c40\u4f5c\u7528\u57df\u3002 \u5757\u4f5c\u7528\u57df \u5757\u4f5c\u7528\u57df\u5728\u4ee3\u7801\u5757\u5185\u6709\u6548\uff0c\u4f8b\u5982\u51fd\u6570\u3001\u65b9\u6cd5\u6216\u533f\u540d\u51fd\u6570\u3002\u5728\u5757\u4f5c\u7528\u57df\u5185\u58f0\u660e\u7684\u53d8\u91cf\u4ec5\u5728\u8be5\u5757\u5185\u53ef\u89c1\u3002 function myFunction() { \/\/ \u58f0\u660e\u5757\u4f5c\u7528\u57df\u53d8\u91cf $blockVariable = &#8216;\u5757\u4f5c\u7528\u57df\u53d8\u91cf&#8217;; } \/\/ \u65e0\u6cd5\u8bbf\u95ee\u5757\u4f5c\u7528\u57df\u53d8\u91cf echo $blockVariable; \/\/ \u9519\u8bef \u5168\u5c40\u4f5c\u7528\u57df \u5168\u5c40\u4f5c\u7528\u57df\u5728\u6574\u4e2a\u811a\u672c\u4e2d\u6709\u6548\u3002\u5728\u5168\u5c40\u4f5c\u7528\u57df\u4e2d\u58f0\u660e\u7684\u53d8\u91cf\u53ef\u4ee5\u5728\u811a\u672c\u4e2d\u7684\u4efb\u4f55\u4f4d\u7f6e\u8bbf\u95ee\u3002 \/\/ \u58f0\u660e\u5168\u5c40\u53d8\u91cf $globalVariable = &#8216;\u5168\u5c40\u53d8\u91cf&#8217;; function myFunction() { \/\/ \u53ef\u4ee5\u8bbf\u95ee\u5168\u5c40\u53d8\u91cf echo $globalVariable; } echo $globalVariable; \/\/ \u8f93\u51fa\uff1a\u5168\u5c40\u53d8\u91cf \u5b9e\u6218\u6848\u4f8b \u5728\u4ee5\u4e0b\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf\u548c\u4e00\u4e2a\u5757\u4f5c\u7528\u57df\u53d8\u91cf\u3002\u5728\u51fd\u6570\u5185\u90e8\uff0c\u6211\u4eec\u4f7f\u7528 global \u5173\u952e\u5b57\u6765\u8bbf\u95ee\u5168\u5c40\u53d8\u91cf\u3002 $globalVariable = &#8216;\u5168\u5c40\u53d8\u91cf&#8217;; function myFunction() { global [&hellip;]<\/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-46798","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46798","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=46798"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46798\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}