#50147 [Opn->Bgs]: DEFAULT NULL Values in mysql_query('SHOW COLUMNS FROM `xx`');

From: Date: Thu, 12 Nov 2009 08:38:19 +0000
Subject: #50147 [Opn->Bgs]: DEFAULT NULL Values in mysql_query('SHOW COLUMNS FROM `xx`');
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-144516@lists.php.net to get a copy of this message 
 ID:               50147
 Updated by:       jani@php.net
 Reported By:      w at lder dot de
-Status:           Open
+Status:           Bogus
 Bug Type:         MySQL related
 Operating System: Linux 2.6.16.21-0.25-default
 PHP Version:      5.2.11
 New Comment:

Replace print_r() with var_dump() and prepare for surprise.


Previous Comments:
------------------------------------------------------------------------

[2009-11-11 11:28:23] w at lder dot de

Here is the result:
mysql> SHOW COLUMNS FROM test;
+--------------------+--------------+------+-----+---------+-------+
| Field              | Type         | Null | Key | Default | Extra |
+--------------------+--------------+------+-----+---------+-------+
| hereIsDefaultNULL  | int(255)     | YES  |     | NULL    |       |
| defaultNULLvarchar | varchar(255) | YES  |     | NULL    |       |
+--------------------+--------------+------+-----+---------+-------+

------------------------------------------------------------------------

[2009-11-11 10:44:06] uw@php.net

ext/mysql returns whatever MySQL delivers. Please verify that the MySQL
prompt returns the result you want. If not, this is a MySQL bug not a
PHP bug.

Please run on the command line:

mysql -u<user> -p<password> <database>...
mysql> SHOW COLUMNS FROM <mytable>



------------------------------------------------------------------------

[2009-11-11 10:35:02] w at lder dot de

Description:
------------
The attached Code results a wrong result.
MySQL:
Server Version: 5.0.26
MySQL-Client-Version: 5.0.26



Reproduce code:
---------------
<?php
/* 
MySQL:
CREATE TABLE IF NOT EXISTS test (
  hereIsDefaultNULL int(255) default NULL,
  defaultNULLvarchar varchar(255) default NULL
)
*/
mysql_connect('localhost','user','');
mysql_select_db('test');
$columns_res = mysql_query('SHOW COLUMNS FROM test');
while ($fieldRow = mysql_fetch_assoc($columns_res)) {
	print_r($fieldRow)	;	
}
?>

Expected result:
----------------
Array
(
    [Field] => hereIsDefaultNULL
    [Type] => int(255)
    [Null] => YES
    [Key] => 
    [Default] => NULL
    [Extra] => 
)
Array
(
    [Field] => defaultNULLvarchar
    [Type] => varchar(255)
    [Null] => YES
    [Key] => 
    [Default] => NULL
    [Extra] => 
)


Actual result:
--------------
Array
(
    [Field] => hereIsDefaultNULL
    [Type] => int(255)
    [Null] => YES
    [Key] => 
    [Default] => 
    [Extra] => 
)
Array
(
    [Field] => defaultNULLvarchar
    [Type] => varchar(255)
    [Null] => YES
    [Key] => 
    [Default] => 
    [Extra] => 
)


------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=50147&edit=1

Thread (13 messages)

« previous php.bugs (#144516) next »