How to get value from input with data from database - php

Question

I am having a table with <input type="text" name="' . $r['0'] . '" value="' . $r['0'] . '"
populated from data that i fetch from database like this:
echo '<form id="actions" name="nonValidMainForm" method="post"><table border="2" width="100%">';
echo "<tr><td><b>Index</b></td><td><b>Email </b></td> <td><b>Date</b></td> <td><b>Name</b></td> <td><b>Surname</b></td> <td><b>Telephone Number</b></td> <td><b>Street Adress</b></td><br/>";
while($r = mysql_fetch_array($result)) {
$my[] = $r['0'];
echo '<tr>';
echo '<td>'.$roww++.'</td>';
echo '<td>
<input size="50%" type="text" name="' . $r['0'] . '" value="'.$r['0'].'">
<input type="submit" name="unsubscribe" value="Unsubscribe">
</td>';
echo '<td>'.$r['1'].'</td>';
echo '<td>'.$r['2'].'</td>';
echo '<td>'.$r['3'].'</td>';
echo '<td>'.$r['4'].'</td>';
echo '<td>'.$r['5'].'</td>';
echo '</tr>';
}
echo "<pre>";
print_r($my);
echo "</pre>";
if(isset($_POST['unsubscribe'])){
foreach($my as $key=>$value){
$email = $value;
}
echo "<script>console.log( 'Value is: " . $email . "' );</script>";
}
echo '<button style="position:fixed;bottom:5;left:5;">Change</button>';
echo '</table></form>';
The table looks like this:
I have tried this:
if(isset($_POST['unsubscribe'])){
$email = $POST['email'];
echo "<script>console.log( 'Value is: " . $email . "' );</script>";
}
But the value is empty
So each time i press unsubscribe button the corresponding email to be deleted. How is this possible?

Answer 1

Your form has many elements with the same name. How can the browser determine which element's value to send to the server when the form is posted? Generally the last one takes precedence, but I suspect that behavior may be undefined and browser-specific.
If each individual table row needs to be a separately post-able form, then each row needs its own form:
echo '<td>
<form method="POST" action="somePage.php">
<input size="50%" type="text" name="email" value="'.$r['0'].'">
<input type="submit" name="unsubscribe" value="Unsubscribe">
</form>
</td>';
That way when the browser posts the form to the server, it knows specifically which email and unsubscribe elements to use. Since there's only one of each for that form.

Answer 2

You have to wrap your inputs in a <form> tag.
echo '<form>';
while($r = mysql_fetch_array($result)) {
echo '<tr>';
echo '<td>'.$roww++.'</td>';
echo '<td>
<input size="50%" type="text" name="email" value="'.$r['0'].'">
<input type="submit" name="unsubscribe" value="Unsubscribe">
</td>';
echo '<td>'.$r['1'].'</td>';
echo '<td>'.$r['2'].'</td>';
echo '<td>'.$r['3'].'</td>';
echo '<td>'.$r['4'].'</td>';
echo '<td>'.$r['5'].'</td>';
echo '</tr>';
}
echo '</form>';

Answer 3

if(isset($_POST['unsubscribe'])){
$email = $POST['email'];
echo "<script>console.log( 'Value is: " . $email . "' );</script>";
}
Based on your code above it looks like it's a syntax error. Try the update below
if(isset($_POST['unsubscribe'])){
$email = $_POST['email'];
echo "<script>console.log( 'Value is: " . $email . "' ); </script>";
}