#30703 [Opn->Bgs]: Strange behaviour of mysqli_stmt_prepare()
ID: 30703
Updated by: georg@php.net
Reported By: khru3l at gmail dot com
-Status: Open
+Status: Bogus
Bug Type: MySQLi related
Operating System: Windows XP Coporate + SP2
PHP Version: 5.0.2
New Comment:
5.0.1a is a preview version and very old. Use the 5.0.2
versions from bk tree or snaps.mysql.com.
Works fine with MySQL 5.0.2:
georg@beethoven:~/work/php/test> php -f 30703.php
1
2
3
4
Array
(
[pstat_Id] => 1
)
Array
(
[pstat_Id] => 2
)
Array
(
[pstat_Id] => 3
)
Array
(
[pstat_Id] => 4
)
Previous Comments:
------------------------------------------------------------------------
[2004-11-06 15:35:54] khru3l at gmail dot com
Description:
------------
Enviroment:
- Apache 2.0.52 + PHP 5.0.2 + MySQL 5.0.1a @ Windows XP + SP2
I am using the following MyISAM table, named <poll_statistic>:
CREATE TABLE poll_statistic (
pstat_Id MEDIUMINT(7) UNSIGNED NOT NULL AUTO_INCREMENT,
pstat_Parent SMALLINT(5) UNSIGNED NOT NULL,
pstat_Ip VARCHAR(8) NOT NULL,
pstat_Date DATETIME DEFAULT '0000-00-00 00:00:00',
KEY key_Id (pstat_Id),
PRIMARY KEY(pstat_Ip, pstat_ParentId)
);
+----------+--------------+----------+---------------------+
| pstat_Id | pstat_Parent | pstat_Ip | pstat_Date |
+----------+--------------+----------+---------------------+
| 1 | 2 | 7f000001 | 2004-11-06 12:19:57 |
| 2 | 4 | 7f000001 | 2004-11-06 12:19:57 |
| 3 | 5 | 7f000001 | 2004-11-06 12:19:57 |
| 4 | 7 | 7f000001 | 2004-11-06 12:19:57 |
+----------+--------------+----------+---------------------+
For the SAME sql query: "SELECT pstat_Id FROM poll_statistic", I get
two different results. Using prepared statements the query returns 0
all the time instead of the actual value hold by <pstat_Id> column. IF
I change the SQL Query to: "SELECT pstat_Parent FROM poll_statistic" or
"SELECT pstat_Ip FROM poll_statistic" everything works out fine. Back on
selecting pstat_Id, the returned value is 0.
I'd really like to know if it's my fault or if there is a problem with
mysqli. I have restarted apache/mysql several times, but with the same
result.
Reproduce code:
---------------
<?php
$mysqli = new mysqli("localhost", "root", "password",
"vote");
//Method I
$query = "SELECT pstat_Id FROM poll_statistic";
if ($stmt = $mysqli->prepare($query)) {
$stmt->execute();
$stmt->bind_result($pid);
while ($stmt->fetch()) { printf ("%s\n", $pid); }
$stmt->close();
}
//Method II
if ($result = $mysqli->query($query)) {
while ($row = $result->fetch_array(MYSQLI_ASSOC)) {
print_r($row); }
$result->close();
}
$mysqli->close();
Expected result:
----------------
Method I:
1
2
3
4
Method II:
Array ( [pstat_Id] => 1 )
Array ( [pstat_Id] => 2 )
Array ( [pstat_Id] => 3 )
Array ( [pstat_Id] => 4 )
Actual result:
--------------
Method I:
0
0
0
0
Method II:
Array ( [pstat_Id] => 1 )
Array ( [pstat_Id] => 2 )
Array ( [pstat_Id] => 3 )
Array ( [pstat_Id] => 4 )
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=30703&edit=1
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