Unless $part_number is a number, you're going to want to put quotes
around it. Well, actually, you want to run mysql_real_escape_string()
on it.
You also don't seem to have an end to that if statement. Usually,
people use curly braces around those:
if(true) {
//do something
}
----- Original Message -----
From: Chip Wiegand <chip.wiegand@xxxxxxxxxx>
Date: Thu, 12 Aug 2004 13:24:05 -0700
Subject: Re: How to do an update with arithmetic from a user input
To: papercrane@xxxxxxxxxxxxxxx
Cc: PHP DB <php-db@xxxxxxxxxxxxx>
Justin Patrin <papercrane@xxxxxxxxx> wrote on 08/12/2004 12:55:24 PM:
> On Thu, 12 Aug 2004 12:46:19 -0700, Chip Wiegand
> <chip.wiegand@xxxxxxxxxx> wrote:
> > I have an existing database and web page showing the query results. I have
> > added another field to allow a user to input a two digit number. I want
> > that number to change the number in one of the existing columns for the
> > item it was input next to.
> > I have these columns -
> >
> > Part Number Description Quantity List Price Put on
> > hold
> >
> > I want the Quantity column changed according to the number the user input
> > in the Put on hold column.
> > I'm stuck in the query to write, trying to do
> >
> > $sql1 = "update refurbs set qty(qty - $qty) order by 'description'";
>
> Perhaps:
> $sql1 = "update refurbs set qty = qty - $qty";
>
> Also,
> 1) you have no WHERE there, so this will update *all* records.
> 2) why are you trying to order an update??
Thanks for the quick reply. The order by stuff is gone now, it was an
'artifact'. hehe. Anyway, I added the where clause so my query looks
like this:
$sql = "update refurbs set qty = qty - $buy where part_number = $part_number";
But when I try to run this I get an error -
Parse error: parse error, unexpected $ in
/usr/local/www/data-dist/auth_dealers/refurbs-test.php on line 102
I don't see an rogue $'s in the code.
(Eventually the form will submit to another page which will email the
info to a person here in our office).
--
Chip
Now the code looks like this -
===============================================================
<form action="<? PHP_SELF ?>" method="post" name="refurbs">
<table summary="" border="1" cellpadding="5" cellspacing="0"
width="90%" align="center">
<tr>
<td class="small" bgcolor="#ffffff">Part Number</td>
<td class="small" bgcolor="#ffffff">Description</td>
<td class="small" bgcolor="#ffffff">Quantity</td>
<td class="small" bgcolor="#ffffff">List Price</td>
<td class="small" bgcolor="#ffffff">Special Price</td>
<td class="small" bgcolor="#ffffff">Put on Hold
</td>
</tr>
<?
if (isset($submit)):
$sql = "update refurbs set qty = qty - $buy where part_number = $part_number";
$result = mysql_query($sql);
$Colors = array('#ffcc99','#ffcc33');
$I = 0;
while ( $row = mysql_fetch_array($result))
{
printf("<tr bgcolor=" . $Colors[ $I ++ % count( $Colors ) ] .
"><td>%s\n</td>\n", $row["part_number"]);
printf("<td>%s\n</td>\n", $row["description"]);
printf("<td>%s\n</td>\n", $row["qty"]);
printf("<td>%s\n</td>\n", $row["list"]);
printf("<td>%s\n</td>\n", $row["special"]);
printf("<td><input type=\"text\" name=\"buy\" size=\"2\"
maxlength=\"2\"> </td></tr>\n");
}
?>
</table>
<table summary="" border="0" cellpadding="5" cellspacing="0"
width="90%" align="center">
<tr>
<td><br /><div align="center"><input type="submit" name="submit"
value="Submit" /></div></td>
</tr>
</table>
</form> !DSPAM:411bcfbf286175080220868!
--
DB_DataObject_FormBuilder - The database at your fingertips
http://pear.php.net/package/DB_DataObject_FormBuilder
paperCrane --Justin Patrin--
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