#40852 [Asn->Bgs]: prepared statement in a stored procedure mess up bind_result() parameters
| From: | georg@php.net | Date: | Wed, 04 Apr 2007 19:59:40 +0000 |
| Subject: | #40852 [Asn->Bgs]: prepared statement in a stored procedure mess up bind_result() parameters | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-111120@lists.php.net to get a copy of this message | ||
ID: 40852
Updated by: georg@php.net
Reported By: phpbugs at mise dot x25 dot se
-Status: Assigned
+Status: Bogus
Bug Type: MySQLi related
Operating System: winXP
PHP Version: 5CVS-2007-03-19 (snap)
Assigned To: andrei
New Comment:
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
http://dev.mysql.com/doc/refman/5.0/en/c-api-prepared-statements.html:
The following statements can be used as prepared statements: CREATE
TABLE, DELETE, DO, INSERT, REPLACE, SELECT, SET, UPDATE, and most SHOW
statements. Other statements are not supported in MySQL 5.0.
Previous Comments:
------------------------------------------------------------------------
[2007-03-19 09:32:22] tony2001@php.net
Andrei, is this ext/mysqli or MySQL issue?
------------------------------------------------------------------------
[2007-03-19 00:04:20] phpbugs at mise dot x25 dot se
Description:
------------
Using a prepared statement in a stored procedure in MySQL 5 mess up
bind_result() parameters. The prepared statement can be anything, it
seems.
Reproduce code:
---------------
- create a stored procedure in the mysql test database
DELIMITER $$
DROP PROCEDURE IF EXISTS test.spTest$$
CREATE PROCEDURE test.spTest()
BEGIN
PREPARE statement FROM "SET @x = 123";
EXECUTE statement;
DEALLOCATE PREPARE statement;
SELECT 5, 8;
END$$
- then call it from PHP like this
<?php
$mysqli = new mysqli("localhost", "user", "pwd", "test");
$statement = $mysqli->prepare("CALL spTest()");
$statement->execute();
$statement->bind_result($a, $b);
$statement->fetch();
print "a = $a, b = $b";
?>
Expected result:
----------------
Expected result
a = 5, b = 8
we can confirm this by doing:
mysql> call spTest();
+---+---+
| 5 | 8 |
+---+---+
| 5 | 8 |
+---+---+
1 row in set (0.00 sec)
Query OK, 0 rows affected (0.02 sec)
(moving "SELECT 5, 8" above EXECUTE in the stored procedure yield the
expected result)
Actual result:
--------------
Actual result (in this case):
a = , b = 15763698207438849
but depending on a variety of unknown factors the bound result can be
complete garble as well.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=40852&edit=1