interface php and html, in foreach loop - php

Question

I have a PHP page that shows me data from the database. I'm inserting a button that, if pressed, deletes the record. The problem is that if I push the button the action is done on all the records, because I can't uniquely identify the click on the button
some code
foreach ( $associati as $associato ) {
echo "<hr />";
echo "Nome associato : ".$associato->Nome."</br>";
echo "Codice Fiscale : ".$associato->CF."</br>";
echo "<hr />";
if(isset($_POST["numerazione"])){
echo "Hello world"; //Query for delete
}
?>
<form method="POST" action="">
<input type="submit"
name="numerazione"
value="Elimina utente"
onclick="return confirm('Are you sure?')"
/>
</form>
<?php
}
How can I do to uniquely identify the button?

Answer 1

You can add a hidden field to each form that contains the unique identifier of the data, that means when you click the button, it will create a POST request, and in that POST request you can get the ID of the clicked record by doing $_POST['unique-id'], also make sure to populate the value of that hidden field using PHP
<?php
foreach ( $associati as $associato ) {
echo "<hr />";
echo "Nome associato : ".$associato->Nome."</br>";
echo "Codice Fiscale : ".$associato->CF."</br>";
echo "<hr />";
if(isset($_POST["numerazione"])){
$numerazione = $_POST["unique-id"];
echo "Unique record is : ".$numerazione."</br>";
}
?>
<form method="POST" action="">
<input type="hidden" name="unique-id" value="<?php echo $associato->CF; ?>" />
<input type="submit"
name="numerazione"
value="Elimina utente"
onclick="return confirm('Are you sure?')"
/>
</form>
<?php
}
?>

Answer 2

Pass the unique information (e.g. $id or $associato->id or whatever the variable which can identify the record) when the form is submitted
<form method="POST" action="">
<input type=hidden name=id value=<?php echo $id; ?>>
<input type="submit"
name="numerazione"
value="Elimina utente"
onclick="return confirm('Are you sure?')"
/>
</form>

Answer 3

Solution for this problem:
if(isset($_POST["mod"]) and $_POST["id"]== $associato->ID ){
echo "Hello world";
}
?>
<form method="POST" action="">
<input type="hidden" name="id" value=<?php echo $associato->ID; ?>>
<input type="submit"
name="mod"
value="valore"
onclick="return confirm('Are you sure?')"
/>
</form>