用 PHP 调用 MySQL 存储过程

    MySQL 5.0 以上支持存储过程。
    PHP 5.0 以上的 mysqli 系列函数可以支持操作 MySQL 的存储过程。
    以下是一些简单的存储过程和用 PHP 调用的示例。     一、返回单个数据: 1: <?php
2: header("Content-Type:text/html;charset=utf-8");
3:  
4: $host = "localhost";
5: $user = "root";
6: $password = "mypassword";
7: $db = "test_store_proc";
8: $dblink = mysqli_connect($host, $user, $password, $db) or die("can't connect to mysql");
9:  
10: $dblink->query('SET NAMES UTF8');
11: if ($result = $dblink->query("CALL sp_test0(@num, @x, 123)"))
12: {
13: $rs = $dblink->query("select @num");
14: $row = $rs->fetch_array();
15: echo $row['@num'], '<br>';
16:  
17: $rs = $dblink->query("select @x");
18: $row = $rs->fetch_array();
19: echo $row['@x'];
20:  
21: mysqli_free_result($rs);
22: }
23: else
24: echo 'error...';
25: mysqli_close($dblink);
26:  
27: /*
28: -- Procedure "sp_test0" DDL
29: CREATE DEFINER=`root`@`localhost` PROCEDURE `sp_test0`(OUT num INT, OUT x VARCHAR(16), IN n INT)
30: BEGIN
31: DECLARE nouse int;
32: DECLARE tmp int;
33:  
34: SELECT nId INTO nouse from open_news WHERE nID=39;
35: SELECT count(*) INTO tmp from open_news;
36: SET num = tmp;
37:  
38: SET x = 'XXX';
39: END;
40: */
41: ?>
42:  
     二、返回结果集:
1: <?php
2: header("Content-Type:text/html;charset=utf-8");
3:  
4: $host = "localhost";
5: $user = "root";
6: $password = "mypassword";
7: $db = "te