I'm currently using modx and I have the following problem:

Currently I am passing the following variable from my chunk to my snippet: [!tax? &param1=`[+price_net+]`]

Then within my main snippet I am trying to convert that variable into a float, and search within my database:

<?php
echo $param1;

$converted = (float)$param1;
echo $converted;

if($converted === '123.00') echo 'Float'; /*This isn't printing out so I'm assuming its not converting properly?*/

$sql = "SELECT * FROM catalogue_items WHERE price_net = '".$converted."'" ;
$result=mysql_query($sql);

while ($row = mysql_fetch_array($result))
{
$name = $row['name'];
$price_net = $row['price_net'];
}

echo '<FORM METHOD=POST>';
echo 'Name<br/>';
echo '<input type="text" name="name" value="' .$name. ' "><br/>';
echo 'Price Net<br/>';
echo '<input type="text" name="price_net" value="'.$price_net.'" ><br/>';
echo '<input type=submit name="submit" value="Update"></p>';
echo '</FORM>';
?>

Hope that was somewhat clear!

Any help would be appreciated - I'm tearing my hair out now!