{"id":47894,"date":"2024-12-02T10:15:59","date_gmt":"2024-12-02T02:15:59","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47894\/"},"modified":"2024-12-02T10:15:59","modified_gmt":"2024-12-02T02:15:59","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%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a1%b9","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47894\/","title":{"rendered":"PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879"},"content":{"rendered":"

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

PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879<\/h1>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

\"PHP<\/p>\n

\u5728 PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n

\u5728 PHP \u4e2d\uff0c\u4f7f\u7528\u5f15\u7528\u53d8\u91cf\u53ef\u4ee5\u4fee\u6539\u5916\u90e8\u51fd\u6570\u8303\u56f4\u5185\u7684\u53d8\u91cf\u3002\u867d\u7136\u8fd9\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u6548\u7387\uff0c\u4f46\u5728\u4f7f\u7528\u65f6\u9700\u8981\u8c28\u614e\uff0c\u4ee5\u907f\u514d\u610f\u5916\u7684\u540e\u679c\u3002<\/p>\n

\u4f7f\u7528\u65b9\u6cd5\uff1a<\/strong><\/p>\n

\u8981\u521b\u5efa\u5f15\u7528\u53d8\u91cf\uff0c\u9700\u8981\u5728\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570\u524d\u9762\u6dfb\u52a0 &<\/code> \u7b26\u53f7\uff1a<\/p>\n

function changeValueByRef(&$value) {\n  $value += 1;\n}<\/pre>\n
\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
    \n
  • \u5f15\u7528\u53d8\u91cf\u4f1a\u4fee\u6539\u51fd\u6570\u5916\u7684\u53d8\u91cf\uff1a<\/strong>\u5728\u51fd\u6570\u5185\u5bf9\u5f15\u7528\u53d8\u91cf\u7684\u4fee\u6539\u4e5f\u4f1a\u5f71\u54cd\u51fd\u6570\u5916\u7684\u53d8\u91cf\u3002<\/li>\n
  • \u907f\u514d\u4fee\u6539\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\uff1a<\/strong>\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\u4e0d\u80fd\u5728\u51fd\u6570\u5185\u4fee\u6539\u3002\u5426\u5219\uff0c\u4f1a\u5bfc\u81f4\u4e0d\u53ef\u9884\u6d4b\u7684\u7ed3\u679c\u3002<\/li>\n
  • \u907f\u514d\u9012\u5f52\u8c03\u7528\u5f15\u7528\u51fd\u6570\uff1a<\/strong>\u5728\u9012\u5f52\u8c03\u7528\u5f15\u7528\u51fd\u6570\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u65e0\u9650\u9012\u5f52\uff0c\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\u3002<\/li>\n
  • \u4f7f\u7528\u5f15\u7528\u53d8\u91cf\u65f6\u663e\u5f0f\u58f0\u660e\uff1a<\/strong>\u4f7f\u7528\u5f15\u7528\u53d8\u91cf\u65f6\uff0c\u53ef\u4ee5\u5728\u51fd\u6570\u58f0\u660e\u4e2d\u6dfb\u52a0 &<\/code> \u7b26\u53f7\uff0c\u4ee5\u660e\u786e\u8868\u793a\u51fd\u6570\u4f7f\u7528\u5f15\u7528\u53d8\u91cf\u3002<\/li>\n
  • \u8c28\u614e\u5904\u7406\u9ed8\u8ba4\u503c\uff1a<\/strong>\u4f7f\u7528\u9ed8\u8ba4\u503c\u4e3a\u5f15\u7528\u53d8\u91cf\u7684\u53c2\u6570\u65f6\uff0c\u9700\u8981\u8c28\u614e\uff0c\u56e0\u4e3a\u66f4\u6539\u9ed8\u8ba4\u503c\u4e5f\u4f1a\u5f71\u54cd\u8c03\u7528\u51fd\u6570\u3002<\/li>\n<\/ul>\n
    \u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
    \u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86\u5728\u51fd\u6570\u4e2d\u4f20\u9012\u5f15\u7528\u53d8\u91cf\uff1a<\/p>\n
    $x = 10;\n\nfunction doubleValueByRef(&$num) {\n  $num *= 2;\n}\n\ndoubleValueByRef($x);\necho $x; \/\/ \u8f93\u51fa\uff1a20<\/pre>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cdoubleValueByRef()<\/code> \u51fd\u6570\u91c7\u7528\u5f15\u7528\u53c2\u6570 $num<\/code>\uff0c\u5728\u51fd\u6570\u5185\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\u4f1a\u6539\u53d8\u5916\u90e8\u53d8\u91cf $x<\/code> \u7684\u503c\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a 20\u3002<\/p>\n
    \u4eca\u5929\u5173\u4e8e\u300aPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8ePHP\u51fd\u6570,\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879 \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879\u300b\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u6587\u7ae0\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01 \u5728 PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879 \u5728 PHP \u4e2d\uff0c\u4f7f\u7528\u5f15\u7528\u53d8\u91cf\u53ef\u4ee5\u4fee\u6539\u5916\u90e8\u51fd\u6570\u8303\u56f4\u5185\u7684\u53d8\u91cf\u3002\u867d\u7136\u8fd9\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u6548\u7387\uff0c\u4f46\u5728\u4f7f\u7528\u65f6\u9700\u8981\u8c28\u614e\uff0c\u4ee5\u907f\u514d\u610f\u5916\u7684\u540e\u679c\u3002 \u4f7f\u7528\u65b9\u6cd5\uff1a \u8981\u521b\u5efa\u5f15\u7528\u53d8\u91cf\uff0c\u9700\u8981\u5728\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570\u524d\u9762\u6dfb\u52a0 & \u7b26\u53f7\uff1a function changeValueByRef(&$value) { $value += 1; } \u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879\uff1a \u5f15\u7528\u53d8\u91cf\u4f1a\u4fee\u6539\u51fd\u6570\u5916\u7684\u53d8\u91cf\uff1a\u5728\u51fd\u6570\u5185\u5bf9\u5f15\u7528\u53d8\u91cf\u7684\u4fee\u6539\u4e5f\u4f1a\u5f71\u54cd\u51fd\u6570\u5916\u7684\u53d8\u91cf\u3002 \u907f\u514d\u4fee\u6539\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\uff1a\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\u4e0d\u80fd\u5728\u51fd\u6570\u5185\u4fee\u6539\u3002\u5426\u5219\uff0c\u4f1a\u5bfc\u81f4\u4e0d\u53ef\u9884\u6d4b\u7684\u7ed3\u679c\u3002 \u907f\u514d\u9012\u5f52\u8c03\u7528\u5f15\u7528\u51fd\u6570\uff1a\u5728\u9012\u5f52\u8c03\u7528\u5f15\u7528\u51fd\u6570\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u65e0\u9650\u9012\u5f52\uff0c\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\u3002 \u4f7f\u7528\u5f15\u7528\u53d8\u91cf\u65f6\u663e\u5f0f\u58f0\u660e\uff1a\u4f7f\u7528\u5f15\u7528\u53d8\u91cf\u65f6\uff0c\u53ef\u4ee5\u5728\u51fd\u6570\u58f0\u660e\u4e2d\u6dfb\u52a0 & \u7b26\u53f7\uff0c\u4ee5\u660e\u786e\u8868\u793a\u51fd\u6570\u4f7f\u7528\u5f15\u7528\u53d8\u91cf\u3002 \u8c28\u614e\u5904\u7406\u9ed8\u8ba4\u503c\uff1a\u4f7f\u7528\u9ed8\u8ba4\u503c\u4e3a\u5f15\u7528\u53d8\u91cf\u7684\u53c2\u6570\u65f6\uff0c\u9700\u8981\u8c28\u614e\uff0c\u56e0\u4e3a\u66f4\u6539\u9ed8\u8ba4\u503c\u4e5f\u4f1a\u5f71\u54cd\u8c03\u7528\u51fd\u6570\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a \u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86\u5728\u51fd\u6570\u4e2d\u4f20\u9012\u5f15\u7528\u53d8\u91cf\uff1a $x = 10; function doubleValueByRef(&$num) { $num *= 2; } doubleValueByRef($x); echo $x; \/\/ \u8f93\u51fa\uff1a20 \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cdoubleValueByRef() \u51fd\u6570\u91c7\u7528\u5f15\u7528\u53c2\u6570 $num\uff0c\u5728\u51fd\u6570\u5185\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\u4f1a\u6539\u53d8\u5916\u90e8\u53d8\u91cf $x \u7684\u503c\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a 20\u3002 \u4eca\u5929\u5173\u4e8e\u300aPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53d8\u91cf\u7684\u6ce8\u610f\u4e8b\u9879\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\u51fd\u6570,\u5f15\u7528\u53d8\u91cf\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/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-47894","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47894","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=47894"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47894\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}