From:             [EMAIL PROTECTED]
Operating system: Windows98
PHP version:      4.2.1
PHP Bug Type:     MySQL related
Bug description:  insert null value into float/double mysql gives 0

In short:

$specialprice="Null";
$query = "UPDATE mytable SET mytable.specialprice = '".$specialprice."'
WHERE ......";
submitted a "0"(zero) into mysql.

and:
$specialprice="mytable.specialprice =Null";
$query = "UPDATE mytable SET '".$specialprice."'
WHERE ......";
submitted Null, like it should.
I couldnt account why the first version would submit "0"

the mysql field has the following properties:
type:float,
length=11,
decimals=2,
allow null:true,
unsigned: false,
zerofill: false,
default value:empty

-- 
Edit bug report at http://bugs.php.net/?id=20506&edit=1
-- 
Try a CVS snapshot:         http://bugs.php.net/fix.php?id=20506&r=trysnapshot
Fixed in CVS:               http://bugs.php.net/fix.php?id=20506&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=20506&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=20506&r=needtrace
Try newer version:          http://bugs.php.net/fix.php?id=20506&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=20506&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=20506&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=20506&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=20506&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=20506&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=20506&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=20506&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=20506&r=isapi

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