{"id":46905,"date":"2024-12-02T08:12:15","date_gmt":"2024-12-02T00:12:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46905\/"},"modified":"2024-12-02T08:12:15","modified_gmt":"2024-12-02T00:12:15","slug":"php-%e5%87%bd%e6%95%b0%e4%b8%ad%e5%bc%95%e7%94%a8%e5%8f%98%e9%87%8f%e7%9a%84%e5%86%85%e5%ad%98%e5%9c%b0%e5%9d%80%e4%b8%8e%e5%8e%9f%e5%a7%8b%e5%8f%98%e9%87%8f%e6%98%af%e5%90%a6%e7%9b%b8%e5%90%8c","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46905\/","title":{"rendered":"PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u662f\u5426\u76f8\u540c\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u662f\u5426\u76f8\u540c\uff1f<\/h1>\n<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u662f\u5426\u76f8\u540c\uff1f\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 style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/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<p>\u5426\uff0cPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u4e0d\u540c\u3002\u5f15\u7528\u53d8\u91cf\u6307\u5411\u539f\u59cb\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\uff0c\u4f46\u5b83\u662f\u4e00\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\uff0c\u62e5\u6709\u81ea\u5df1\u7684\u5185\u5b58\u5730\u5740\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729854034671b7a52bc778.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u662f\u5426\u76f8\u540c\uff1f\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u662f\u5426\u76f8\u540c\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u662f\u5426\u4e0e\u539f\u59cb\u53d8\u91cf\u76f8\u540c\uff1f<\/strong><\/p>\n<p>\u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5f15\u7528\u53d8\u91cf\u6765\u4f20\u9012\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u7ed9\u51fd\u6570\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u51fd\u6570\u53ef\u4ee5\u4fee\u6539\u539f\u59cb\u53d8\u91cf\u7684\u503c\u3002\u7136\u800c\uff0c\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u662f\u5426\u4e0e\u539f\u59cb\u53d8\u91cf\u76f8\u540c\u5462\uff1f<\/p>\n<p><strong>\u7b54\u6848\uff1a\u5426<\/strong><\/p>\n<p>\u5f15\u7528\u53d8\u91cf\u867d\u7136\u6307\u5411\u539f\u59cb\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\uff0c\u4f46\u5b83\u672c\u8eab\u662f\u4e00\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\uff0c\u5177\u6709\u81ea\u5df1\u7684\u5185\u5b58\u5730\u5740\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<pre>&lt;?php\nfunction changeValue($x) {\n  $x = 100;\n}\n\n$a = 50;\nchangeValue($a);\n\necho $a; \/\/ \u8f93\u51fa 50<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u51fd\u6570 <code>changeValue<\/code>\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u5f15\u7528\u53d8\u91cf <code>$x<\/code>\u3002\u5728\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u4fee\u6539\u4e86 <code>$x<\/code> \u7684\u503c\uff0c\u4f46\u539f\u59cb\u53d8\u91cf <code>$a<\/code> \u7684\u503c\u4fdd\u6301\u4e0d\u53d8\u3002\u8fd9\u662f\u56e0\u4e3a <code>$x<\/code> \u867d\u7136\u6307\u5411 <code>$a<\/code> \u7684\u5185\u5b58\u5730\u5740\uff0c\u4f46\u5b83\u662f\u4e00\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\uff0c\u5b83\u5bf9\u539f\u59cb\u53d8\u91cf\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u5728 PHP \u51fd\u6570\u4e2d\uff0c\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u4e0d\u540c\u3002\u5f15\u7528\u53d8\u91cf\u867d\u7136\u6307\u5411\u539f\u59cb\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\uff0c\u4f46\u5b83\u662f\u4e00\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\uff0c\u5b83\u5bf9\u539f\u59cb\u53d8\u91cf\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<p>\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":"<p>PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u662f\u5426\u76f8\u540c\uff1f \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\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u662f\u5426\u76f8\u540c\uff1f\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 \u5426\uff0cPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u4e0d\u540c\u3002\u5f15\u7528\u53d8\u91cf\u6307\u5411\u539f\u59cb\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\uff0c\u4f46\u5b83\u662f\u4e00\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\uff0c\u62e5\u6709\u81ea\u5df1\u7684\u5185\u5b58\u5730\u5740\u3002 PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u662f\u5426\u4e0e\u539f\u59cb\u53d8\u91cf\u76f8\u540c\uff1f \u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5f15\u7528\u53d8\u91cf\u6765\u4f20\u9012\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u7ed9\u51fd\u6570\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u51fd\u6570\u53ef\u4ee5\u4fee\u6539\u539f\u59cb\u53d8\u91cf\u7684\u503c\u3002\u7136\u800c\uff0c\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u662f\u5426\u4e0e\u539f\u59cb\u53d8\u91cf\u76f8\u540c\u5462\uff1f \u7b54\u6848\uff1a\u5426 \u5f15\u7528\u53d8\u91cf\u867d\u7136\u6307\u5411\u539f\u59cb\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\uff0c\u4f46\u5b83\u672c\u8eab\u662f\u4e00\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\uff0c\u5177\u6709\u81ea\u5df1\u7684\u5185\u5b58\u5730\u5740\u3002 \u5b9e\u6218\u6848\u4f8b &lt;?php function changeValue($x) { $x = 100; } $a = 50; changeValue($a); echo $a; \/\/ \u8f93\u51fa 50 \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u51fd\u6570 changeValue\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u5f15\u7528\u53d8\u91cf $x\u3002\u5728\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u4fee\u6539\u4e86 $x \u7684\u503c\uff0c\u4f46\u539f\u59cb\u53d8\u91cf $a \u7684\u503c\u4fdd\u6301\u4e0d\u53d8\u3002\u8fd9\u662f\u56e0\u4e3a $x \u867d\u7136\u6307\u5411 $a \u7684\u5185\u5b58\u5730\u5740\uff0c\u4f46\u5b83\u662f\u4e00\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\uff0c\u5b83\u5bf9\u539f\u59cb\u53d8\u91cf\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u7684\u503c\u3002 \u7ed3\u8bba \u5728 PHP \u51fd\u6570\u4e2d\uff0c\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\u4e0e\u539f\u59cb\u53d8\u91cf\u4e0d\u540c\u3002\u5f15\u7528\u53d8\u91cf\u867d\u7136\u6307\u5411\u539f\u59cb\u53d8\u91cf\u7684\u5185\u5b58\u5730\u5740\uff0c\u4f46\u5b83\u662f\u4e00\u4e2a\u4e0d\u540c\u7684\u53d8\u91cf\uff0c\u5b83\u5bf9\u539f\u59cb\u53d8\u91cf\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u7684\u503c\u3002 \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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-46905","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46905","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=46905"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46905\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}