使用PHP在HTML中获取表值

Question

This is my code and it is inside table tags. It grabs data from my database and put it in table. My database also has auto increment column named id. What I want to do is when I click the cross icon that is in anchor, I will get the id for that column.

I tried putting the value of $row['id'] in an input type='hidden' but had no success with it.

Another idea I has is making an anchor id=".$row['id']." so every icon has a unique id pertaining to the id for that line. Though I don't if it is good. I can't check because I have no idea how to get an element's id so I can check. And I don't know how to pass this value to php.

<?php        
    $varSQL = "SELECT empNum, empName FROM tool.users";
    $result = mysql_query($varSQL, $Con);
    while ($row = mysql_fetch_assoc($result)){
        echo "<tr>";
        echo "<td>".$row['empNum']."</td>";
        echo "<td>".$row['empName']."</td>";
        echo "<a href='#'><img src='icons/cross.ico' alt='Delete' height='16' width='16'></a></td>";
        echo "</tr>";
    }
?>

Answer 1

It is because you do not have id in your query. It should look like this:

SELECT id, empNum, empName FROM tool.users

Answer 2

You can use data attribute -

echo "<a href='#'><img src='icons/cross.ico' alt='Delete' data-rowid='" . $row['id'] . "' class='cross-icon' height='16' width='16'></a></td>";

Also added a class to be be used as selector(Not required for all cases). And with jquery access them when the icon is click -

$('.cross-icon').on('click', function() {
    var id = $(this).data('rowid');
})

Fiddle Example

For hidden fields there is no need of jQuery -

<input type="hidden" name="id" value="<?php echo $row['id']?>"

Or pass it as query string -

href='page-to-redirect.php?id=<?php echo $row["id"]?>'

Answer 3

What you want to do with this id? You can get the id using javascript (not PHP) and then using this value in an AJAX request or put this value into an input form and send it throw post but always you need to use JS not PHP.

Answer 4

<?php        
     $varSQL = "SELECT id, empNum, empName FROM tool.users";
     .........    
     echo "<td><a href='#'><img src='icons/cross.ico' data-rowid=$row['id'] alt='Delete' height='16' width='16'></a></td>";
     ........

Try this one.

In select query add id also and Get the data-rowid value for your further operations