How to correctly use PHPXMLReader to parse XML document _ PHP Tutorial

Correct use of PHPXMLReader to parse XML documents. The sample code using PHPXMLReader is as follows :? PHPheader (Content-type: texthtml; Charsetutf-8); $ urlwww. google. comigapi? Weathershenzhen; we are using XML content loading.

The code example of PHP XMLReader is as follows:

1. <? PHP
2. Header ("Content-type: text/html;
   Charset = utf-8 ");
3. $ Url = "http://www.google.com/
   Ig/api? Weather = shenzhen ";
4. // Load XML content
5. $ Xml = new XMLReader ();
6. $ Xml-> open ($ url );
7. $ Condition = '';
8. $ Temp_c = '';
9. While ($ xml-> read ()){
10. // Echo $ xml-> name, "=> ",
    $ Xml-> depth ,"
    ";
11. If (! Empty ($ condition)
    &&! Empty ($ temp_c )){
12. Break;
13. }
14. If ($ xml-> name = 'condition'
    & Amp; empty ($ condition )){
15. // Obtain the first condition
16. $ Condition = $ xml-> getAttribute ('data ');
17. }
18. If ($ xml-> name = 'temp _ c '&&
    Empty ($ temp_c )){
19. // Obtain the first temp_c
20. $ Temp_c = $ xml-> getAttribute ('data ');
21. }
22. $ Xml-> read ();
23. }
24. $ Xml-> close ();
25. Echo 'weather: ', $ condition,' <br/> ';
26. Echo 'temperature: ', $ temp_c,' <br/> ';

We just need to use PHP XMLReader to get the first condition and the first temp_c, so we traverse all the nodes, write the first condition and the first temp_c into the variable, and finally output the result.

The following is an example of the PHP XMLReader code :? PHP header (Content-type: text/html; Charset = utf-8); $ url = http://www.google.com/ig/api? Weather = shenzhen; // load XML content...