Explanation of PHP odbc tips _ PHP Tutorial

Correctly interpret PHP odbc skills. When we apply odbc code in PHP: classodbc_db {var $ connull; var $ resourcenull; function _ construct () {} functionconnect ($ dsn, $ user, $ passwd, $ cu when we are applying

PHP odbc application code:

1. Class odbc_db
2. {
3. Var $ con = null;
4. Var $ resource = null;
5. Function _ construct ()
6. {
7. }
8. Function connect ($ dsn = ",
   $ User = ", $ passwd = ",
   $ Cursor_type = 0)
9. {
10. ! $ Dsn & $ this->Debug ('dsn not provided! ');
11. $ This->Con = odbc_connect ($ dsn, $ user
    , $ Passwd, $ cursor_type );
12. ! $ This->Con & $ this->Debug ('conncet failed! ');
13. Return $ this->Con;
14. }
15. Function query ($ SQL = ")
16. {
17. $ This->Resource = odbc_exec ($ this->Con, $ SQL );
18. ! $ This->Resource & $ this->Debug
    ('Query failed! ');
19. Return $ this->Resource;
20. }
21. Function fetch_array ($ resource = ")
22. {
23. ! $ Resource & $ resource = $ this->Resource;
24. Return odbc_fetch_array ($ resource );
25. }
26. Function query_first ($ SQL = ")
27. {
28. $ Resource = $ this->Query ($ SQL );
29. Return odbc_fetch_array ($ resource );
30. }
31. Function fetch_all ($ resource = ")
32. {
33. ! $ Resource & $ resource = $ this->Resource;
34. $ Results = array ();
35. While (false! ==( $ Row = @ odbc_fetch _
    Array ($ resource )))
36. {
37. $ Results [] = $ row;
38. }
39. Return $ results;
40. }
41. Function num_rows ()
42. {
43. Return odbc_num_rows ($ this->Con );
44. }
45. Function affected_rows ()
46. {
47. Return odbc_num_rows ($ this->Con );
48. }
49. Function debug ($ message = ")
50. {
51. $ Message. ='
52. The following error messages are provided by ODBC: '. odbc_errormsg ();
53. Exit ($ message );
54. }
55. Function _ destruct ()
56. {
57. Odbc_close ($ this->Con );
58. }
59. }
60. ?>

The above are all the steps for PHP to apply odbc, and I hope to help you.

Specific odbc application code in PHP: classodbc_db {var $ con = null; var $ resource = null; function _ construct () {} functionconnect ($ dsn =, $ user =, $ passwd =, $ cu...