how to add in quantity and size in my online shopping

[kang jia]

hi

i am doing online shop now using php, my product is clothes, Now i am able to let users to order, however i don;t know how should i validate quantity and size field when they select that specific clothes. i just pass it to do_addcart.php but it seems the value never pass through. what should i do now?

how can i let users to put in quantity and size field when they select clothes? i have to validate the quantity and size field before add into cart. also i have to know the vaule of their input.

[ronnil]

a posibility is to make a hidden field where you store the quantity value. make a div tag where you display that value, and then two image buttons (+ and -) when the user clicks one of these buttons you increase/decrease the number.

[CODE=javascript]<script language="javas cript">
function changeQuant(qua ntity)
{
var hiddenObj = document.getEle mentById('quant ity');
var currentQuant = hiddenObj.value ;
currentQuant = currentQuant + quantity;

hiddenObj.value = currentQuant;
document.getEle mentById('show_ quant').innerHT ML = currentQuant;
}

</script>
<form>
<input type="hidden" name="quantity" id="quantity" value="1" /> <!-- the default value is ofc 1 item -->
</form>

<div id="show_quant" ><img onclick="change Quant(-1)" alt="-" /><img onclick="change Quant(1)" alt="+" />[/CODE]

ofcourse the hidden field must be attached to whatever form you use to make the order. when submitting it, you will then have a variable by the name of quantity.

This is just one of many solutions :)

[Atli]

Hi.

Could you show us the code you are using? It helps to see the code your trying to debug :)

My solution to a similar functionality was to add a text field to my form and allow the user to type the quantity they wanted. Then that field would simply be passed to the next page using HTTP_POST and I would validate it there.

If you are not sure how that works you can check out this article , where it is discussed in detail.

[kang jia]

yes, i have do the same as what u said, i validate it in the next page, the code is like the following:
in the first page:
[code=php]
$getName = $_GET['name'];

if (isset($getName )){
$selPaint = "SELECT * from ladies where brand ='".$getName."' ";

}
else{
$selPaint = "SELECT * from ladies";
}

$execPaint = mysql_query($se lPaint);
while($thisArt = mysql_fetch_arr ay($execPaint)) {

$fName = $thisArt['filename'];
$id = $thisArt['id'];
$_SESSION['id']=$id;

//echo "<input type='hidden' name='vin' value=$id>";

echo"<table bgcolor='#FFFFF F' border='1' width='570' height='200' cellspacing='5' >";
$title=$thisArt['title'];
echo "<h3><td>".$tit le."</h3>";

$text=wordwrap( $title,2,"<br />\n");

echo "<a href =".$uploaddir.$ fName.">";
echo "<img src=".$thumbdir ."thumb_".$fNam e."></a><br>";

$price=$thisArt['price'];
echo "<td><br><br><b r>";
$Des = "<h4>".$thi sArt['description']."</h4><br>";
$text1=wordwrap ($Des,60,"<br />\n");
echo"<h3>".$tex t1."</h3></td><br>";
/*if($role =="admin"){
echo "<td><a href=\"do_delet e.php?id=".$id. "\">Delete</a></td>";
echo "<td><a href=\"updateco ntact.php?id=". $id."\">Update</a></td>";

}*/
echo"</table>";
echo "<BR>";

if (isset($_SESSIO N['userid'])) {

if($role =="admin"){
//echo"&nbsp;&nbs p;&nbsp;&nbsp;& nbsp;&nbsp;&nbs p;&nbsp;&nbsp;& nbsp;&nbsp;&nbs p;";
echo "<a href=\"do_delet e.php?id=".$id. "\">Delete</a>";
echo "&nbsp;&nbs p;";
echo "<a href=\"updateco ntact.php?id=". $id."\">Update</a>";
echo "<br>";
echo "<br>";
}
$rprice=round($ price,2);
if(isset($curre ncy)){
$asd = $price*$cal;
$round=round($a sd,2);
echo"<table>";
echo"<tr>";
echo"<td>";
echo "<input type = 'checkbox' value = '1' name = '".$id."'>Bu y this poster. Currency: ".$look.". Price = $". $round;
echo"</tr>";
echo "</table>";
echo"
<tr>
<td class='FormLabe l'><font color='red'>*</font> <span class='error'>< nobr>Size:</nobr></span>
</td>
<td class='formFiel dSmall'>
<select id='size' name='size' tabindex='11'>
<option value='0'>---</option>
<option value='1' >S</option>
<option value='2'>M</option>
<option value='3'>L</option>
<option value='4'>XL</option>
</select>
</td>
</tr>";
echo"&nbsp;&nbs p;&nbsp;&nbsp;" ;
echo"
<tr>
<td class='loginFor mLabel'><font color='red'>*</font> <span class='error'>< nobr>Quantity:</nobr></span>
</td>
<td class='formFiel dSmall'>
<select id='NO' name='quantity' tabindex='11'>
<option value='0'>---</option>
<option value='1' >1</option>
<option value='2'>2</option>
<option value='3'>3</option>
<option value='4'>4</option>
<option value='5'>5</option>
<option value='6'>6</option>
<option value='7'>7</option>
<option value='8'>8</option>
<option value='9'>9</option>
<option value='10'>10</option>
</select>
</td>
</tr>";

}
else{
echo "<input type = 'checkbox' value = '1' name = '".$id."'>Bu y this poster. Price = $ S.G ".$rprice;

echo" &nbsp;&nbsp;&nb sp;&nbsp;&nbsp; &nbsp;&nbsp;&nb sp;";
echo"
<tr>
<td class='FormLabe l'><font color='red'>*</font> <span class='error'>< nobr>Size:</nobr></span>
</td>
<td class='formFiel dSmall'>
<select id='size' name='size' tabindex='11'>
<option value='0'>---</option>
<option value='1' >S</option>
<option value='2'>M</option>
<option value='3'>L</option>
<option value='4'>XL</option>
</select>
</td>
</tr>";
echo"&nbsp;&nbs p;&nbsp;&nbsp;" ;
echo"<tr>
<td class='loginFor mLabel'><font color='red'>*</font> <span class='error'>< nobr>Quantity:</nobr></span>
</td>
<td class='formFiel dSmall'>
<select id='NO' name='quantity' tabindex='11'>
<option value='0'>---</option>
<option value='1' >1</option>
<option value='2'>2</option>
<option value='3'>3</option>
<option value='4'>4</option>
<option value='5'>5</option>
<option value='6'>6</option>
<option value='7'>7</option>
<option value='8'>8</option>
<option value='9'>9</option>
<option value='10'>10</option>
</select>
</td>
</tr>";
echo "<br>";

}

}

}
[/code]
in next page:

[code=php]
$userid = $_SESSION['userid'];

$date=date("D j-M-Y G:i:s");

echo "Image ID = ".$_SESSION['id']."<br>";
//echo "Image ID = ".$_POST['vin1']."<br>";
//echo "Image ID = ".$_POST['vin2']."<br>";
//echo "Image ID = ".$_POST['vin3']."<br>";

$chkbox2 = $_POST['quantity'];
$chkbox3 = $_POST['size'];
echo $chkbox2;
echo $chkbox3;

if ($chkbox2 == 0 || $chkbox3 == 0){
echo "<script>alert( 'you did not select your quantity and size, we will direct you back')</script>";
//header('Refresh : 3; url=index1.php' );
//break;
echo "<meta http-equiv='refresh' content='1;url= index1.php'>";
}

else {
foreach ($_POST as $key => $value) {
echo "key: ".$key.", value: ".$value."<br>" ;
$sql = "INSERT INTO orders (imageid, userid, time, quantity, size) VALUES ('$key', '$userid', '$date','$chkbo x2','$chkbox3') ";
mysql_query($sq l);
}

//header('Refresh : 3; url=cart.php');
echo "<meta http-equiv='refresh' content='5;url= http://google.com'>";
echo"<BR>";
echo "Your order is being processed, you will be directed to your shopping cart soon";
}
[/code]

this is code i have done, but it did not post value to the next page, it always 0, and image id is always 16, how should i solve this? thanks for your kind help :)

[kovik]

You input this into your database very strangely. On the second page, call a print_r($_POST) and tell us what you get.