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J
Jonathan_Fortis
Inspiring
February 16, 2013
解決済み

basic filtering PHP...

  • February 16, 2013
  • 返信数 11.
  • 2006 ビュー

i have a product page showing all products. this is linked to the product-detail page and working fine

<div id="indexImage"><a href="SS13product-description.php?ID=<?php echo $row_Recordset1['ProductID']; ?>"><img src="../images/SS13/thumbs/<?php echo $row_Recordset1['ImageDetail']; ?>"/></a></div>

on the description page i have the following SQL

$var1_rsProduct = "-1";

if (isset($_GET['ID'])) {

  $var1_rsProduct = $_GET['ID'];

}

mysql_select_db($database_beau, $beau);

$query_rsProduct = sprintf("SELECT * FROM beauSS13_Cat, beauSS13_products, beauSS13_Stock, beauSS13_SizeList WHERE beauSS13_products.CatID = beauSS13_Cat.catID AND beauSS13_products.ProductID = beauSS13_Stock.ID AND beauSS13_Stock.SizeID = beauSS13_SizeList.SizeID AND beauSS13_products.ProductID = %s", GetSQLValueString($var1_rsProduct, "int"));

$rsProduct = mysql_query($query_rsProduct, $beau) or die(mysql_error());

$row_rsProduct = mysql_fetch_assoc($rsProduct);

$totalRows_rsProduct = mysql_num_rows($rsProduct);

what i want to do on this product description page aswell is show all the products from that category

i made the following but this just shows the same product and not all the other products

mysql_select_db($database_beau, $beau);

$query_rsCategory = "SELECT * FROM beauSS13_Cat, beauSS13_products WHERE beauSS13_products.CatID = beauSS13_Cat.catID";

$rsCategory = mysql_query($query_rsCategory, $beau) or die(mysql_error());

$row_rsCategory = mysql_fetch_assoc($rsCategory);

$totalRows_rsCategory = mysql_num_rows($rsCategory);

where am i gonig wrong?

このトピックへの返信は締め切られました。
解決に役立った回答 bregent

ok i have just added the SQL statments manually as above and the page is loading. But in order to to see if it is displaying all the products from the category i need to repeat region the output

i have done

<?php do { ?>

            <p><?php echo $row_rsCategory['Product']; ?></p>

            <?php } while ($row_rsCategory = mysql_fetch_assoc($row_rsCategory)); ?>

but it is showing error

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource

inE:\Domains\b\beau.com\user\htdocs\SS13\SS13product-description.php on line 286

line 286 is

<?php } while ($row_rsCategory = mysql_fetch_assoc($row_rsCategory)); ?>


You are supplying the wrong argument to the function:

   <?php } while ($row_rsCategory = mysql_fetch_assoc($row_rsCategory)); ?>

should be

   <?php } while ($row_rsCategory = mysql_fetch_assoc($rsCategory)); ?>

返信数 11

B
bregent
Participating Frequently
February 17, 2013

>where am i gonig wrong?

You did not include an expression in the WHERE clause to filter by category.

J
Jonathan_Fortis作成者
Inspiring
February 17, 2013

thats what i tried but when i do

$var2_rsCategory = "-1";

if (isset($_GET['ID'])) {

  $var2_rsCategory = $_GET['ID'];

}

mysql_select_db($database_beau, $beau);

$query_rsCategory = sprintf("SELECT * FROM beauSS13_Cat, beauSS13_products WHERE beauSS13_products.CatID = beauSS13_Cat.catID AND beauSS13_products.ProductID = %s", GetSQLValueString($var2_rsCategory, "text"));

$rsCategory = mysql_query($query_rsCategory, $beau) or die(mysql_error());

$row_rsCategory = mysql_fetch_assoc($rsCategory);

$totalRows_rsCategory = mysql_num_rows($rsCategory);

it is giving me no results

B
bregent
Participating Frequently
February 17, 2013

>$query_rsCategory = sprintf("SELECT * FROM beauSS13_Cat,

>beauSS13_products WHERE beauSS13_products.CatID = beauSS13_Cat.catID

>AND beauSS13_products.ProductID = %s", GetSQLValueString($var2_rsCategory, "text"));

Looks like you are filtering on the ProductID column, but the value you are passing is a Category ID. If you alrady have the category then don't you want to filter on the CategoryID column? But in your original post, the querystring ID represented is the ProductID. It can't be both!

If you are trying to display a list of products that belong to the same category as the product in the detail page, that would be a different query. You could either use a subquery, or use the category value obtained from the first query.

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