Question

Alright so I am trying to basically take what’s in $row[‘cardid’] and set it into the value of my div tag. Then on the html file this is echoing to, it would run my function which uses that value from the div tag. Right now when I use the onclick, it pulls up but says my value is undefined. So my question is why is my variable undefined when I pull it up using html?

<?php
$q=$_GET["q"];
$con = mysql_connect("*", "*", "*");
if (!$con)
    {
    die('Could not connect: ' . mysql_error());
}
mysql_select_db("*", $con);
$sql="SELECT cardset, cardname, cardnumber, cardid FROM cards WHERE cardname LIKE '%".$q."%' OR cardset LIKE '%".$q."%'"; 
$result = mysql_query($sql) or die ('Error: '.mysql_error ());

echo "<table border='1'>
<tr>
<th>#</th>
<th>Cardname</th>
<th>Card Set</th>
</tr>";
while ($row = mysql_fetch_array($result)) 
{
echo "<tr>";
echo "<td>" . $row['cardnumber'] . "</td>";
// This is the troubled line.
echo '<td><div value="'.$row['cardid'].'" onclick="changeimage(this.value)">' . $row['cardname'] . '</div></td>';
echo "<td>" . $row['cardid'] . "</td>";
echo "<td>" . $row['cardset'] . "</td>";
echo "</tr>";
}
echo "</table>";
mysql_close($con);
?>

Answer 1

I don’t fully understand your question, but you mean just something like this?

echo '<td><div onclick="changeimage(this.id)" id="'.$row['cardid'].'">' . $row['cardname'] . '</div></td>';

Use ID instead of value basically..

Example: jsFiddle