Get a link id from a php link button

Question

Hi this is aa part of my php file.

include_once 'dbconnect.php';
$query  = "SELECT * FROM promoter";
$result = mysql_query($query);
echo "<table border=\"2\">\n"; 
echo "   <tr>\n"; 
echo "      <th>Id</th>\n"; 
echo "      <th>User Id</th>\n"; 
echo "      <th>Full Name</th>\n"; 
echo "      <th>Qualification</th>\n";
echo "      <th>Locality</th>\n";
echo "      <th>Description</th>\n";
echo "      <th>Language</th>\n";
echo "      <th>Bank Details</th>\n";
echo "      <th>Change</th>\n";


echo "    </tr>\n";
while($row = mysql_fetch_array($result, MYSQL_ASSOC))
{   
print "<tr> <td>";
    echo $row['id']; 
    print "</td> <td>";
    echo $row['user_id']; 
    print "</td> <td>";
    echo $row['full_name']; 
    print "</td> <td>";
    echo $row['qualification'];
    print "</td> <td>";
    echo $row['locality'];
    print "</td> <td>";
    echo $row['description'];
    print "</td> <td>";
    echo $row['language'];
    print "</td> <td>";
    echo $row['bank_details'];
    print "</td> <td>";
     //echo '<a href="update.php" >Modi</a>';
    echo '<a href="update.php" id= "<?php echo $row['id'];?>">Modify</a>';
    print "</td> </tr>";

}



echo " </table>\n";
include 'closedb.php';

I want to get the row id of the of the table row when the button is link is clicked. How can i get that? There is a link for every row of the table , so when the link is clicked it should take the row ['id'] as the id value , so every link has the id value of its row id.

Answer 1

Try this,

while($row = mysql_fetch_array($result, MYSQL_ASSOC))
{   
    print "<tr> <td>";
    echo $row['id']; 
    print "</td> <td>";
    echo $row['user_id']; 
    print "</td> <td>";
    echo $row['full_name']; 
    print "</td> <td>";
    echo $row['qualification'];
    print "</td> <td>";
    echo $row['locality'];
    print "</td> <td>";
    echo $row['description'];
    print "</td> <td>";
    echo $row['language'];
    print "</td> <td>";
    echo $row['bank_details'];
    print "</td> <td>";
     //echo '<a href="update.php" >Modi</a>';
    echo '<a href="update.php?id= "'.$row['id'].'">Modify</a>';
    print "</td> </tr>";

}

Answer 2

Try this,

(in your php file)
echo '<a href="update.php" id= ".$row['id']." onclick="getId(this)">Modify</a>';

<script>
function getId(link){
    alert(link.id);
}
</script>

Answer 3

PHP can work with multiple types of requests . The two most common ones are POST and GET requests.

The GET request is the one that is being done to the server when you normally click a link.

Example

<a href="index.php?id=1">Click me</a>

<?php if (isset($_GET['id'])): ?>
    The requested id is <?= $_GET['id']; ?>
<?php endif; ?>

In the above example we are requesting index.php with the GET parameter id . PHP stores these parameters in the superglobal $_GET .

In your case:

while (...) {
    echo "<a href='modify.php?id='".$row['id']."'>Modify</a>";
}