How to correctly use PHP DOM-XML to create XML files_PHP Tutorial

When we create XML files and parse them, we usually use

PHP DOM-XML application code example:

1. ?php
2. / **   
3. * Topic: Create and parse XML files using PHP DOM-XML   
4. * Source:http://www.php.net/domxml   
5. * Reference: http://www.zugeschaut-und-mitgebaut.de/php/extension.domxml.html   
6. * Author:urs@circle.ch, 16-1-2001   
7. *   
8. */
9. // Use PHP DOM-XML to create and parse XML files
10. //Create XML document object; Future processing will be carried out on this basis
11. ＄doc = new_xmldoc("1.0" );
12. //Create a root node and set an attribute
13. ＄root = ＄doc->add_root("faq" );
14. ＄root-> setattr("page", "32" );
15. //child node
16. ＄one = ＄root->new_child("question", "");
17. //Set attributes for child nodes
18. ＄one-> setattr("number", "1");
19. //question also creates a child node and assigns a value to it
20. ＄one->new_child("text", "1. Where to get libxml-2.0 .0?");
21. ＄one->new_child(" answer", "You can download the latest
22. release of libxml either as a source archive or
23. RPM package from http://www .xmlsoft.org. 
24. The current version is libxml2-2.2.1." );
25. ＄two = ＄root->new_child("question", "" );
26. ＄two->setattr("number", " 2");
27. ＄two->new_child("text" , "2. How to configure PHP4?" );
28. // Create a node without direct assignment
29. ＄twoone = ＄two->new_child("answer" , "");
30. // Then assign it a separate value
31. ＄twoone->set_content("DIR is the libxml install directory
32. (if you just use --with-dom it defaults
33. to /usr), I needed to use --with-dom=/usr/local" );
34. ＄three = ＄root->new_child("question", "" );  
35. ＄three->setattr("number", "7" );  
36. ＄three->new_child("text", "7. How to use DOM XML function ?" );  
37. ＄three->new_child("answer", "Read this document source for   
38. a simple example." );  
39. //输出到Browser   
40. print(" pre>".htmlspecialchars(＄doc->dumpmem() )." /pre>" );  
41. // write to file  
42. //写回到文件   
43. ＄fp = fopen("test_dom.xml", "w+" );  
44. fwrite(＄fp, ＄doc->dumpmem(), strlen(＄doc->dumpmem() ));  
45. fclose(＄fp);  
46. //现在使用xpath从XML文档中得到内容  
47. ＄doc = xmldoc(join("", file("test_dom.xml")) );  
48. ＄ctx = xpath_new_context(＄doc );  
49. //所有对象  
50. ＄foo = xpath_eval(＄ctx, "//child::*");  
51. print_r(＄foo);  
52. print(" br/> br/>");  
53. //text node 对象  
54. ＄foo = xpath_eval(＄ctx, "//text");  
55. print_r(＄foo);  
56. print(" br/> br/>");  
57. // 第一个text node对象  
58. ＄foo = xpath_eval(＄ctx, "//text[1]");
59. print_r(＄foo);
60. print(" br/> br/>");
61. // The second text node object
62. ＄foo = xpath_eval(＄ctx, "//text[2]");
63. print_r(＄foo ); 🎜>br
64. /> br/>"); // The third answer object ＄foo =
xpath_eval
65. (＄ctx, "// answer[3]");
66. print_r(＄foo); print("
67. br
68. /> br/>"); //The type, name and content of the third text node ＄foo =
xpath_eval
69. (＄ctx, "//text[3]");
70. ＄tmp = ＄foo->
71. nodeset; print_r(＄tmp); print("
72. br
73. />"); print(＄tmp[0]->type) . "; "; print(＄tmp[0]-
74. >name) . "; "; print(＄tmp[0]-
75. >content) ;
76. ?> Need explanation, PHP DOM-XML only runs on PHPPHP4.0.x + linux
77. http://www.bkjia.com/PHPjc/446182.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/446182.html

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When we create XML files and parse them, we usually use PHP DOM-XML application code examples : ?php /** *Topic:CreateandparseXMLfilesusingPHPDOM-XML *Source:http://www.p...