PHP and MySQL Radio Button Name = PHP ECHO

Question

How can I get the clicked button value when its name is echoed by PHP?

Here's my code:

<form>

    <input type='radio' name=<?php echo $i; ?> id='choice1' value=<?php echo $row['choices_a']; ?> checked/>
    <?php echo '' .$row['choices_a']. '' ?> 

    <input type='radio' name=<?php echo $i; ?> id='choice2' value=<?php echo $row['choices_b']; ?> />
    <?php echo ''.$row['choices_b'].''?>

    <input type='radio' name=<?php echo $i; ?> id='choice3' value=<?php echo $row['choices_c']; ?> />
    <?php echo ''.$row['choices_c'].''?> <br />

</form>


<?php 
}   echo $total;
?>

Answer 1

You can get value of that radio button is just simply like other inputs

$_POST['input_name']

And in your case if i = input_value ,

$total = $_POST['input_value'];
echo $total;

You can Also check if that is clicked or isset

if(isset($_POST['input_value'])){
    $total = $_POST['input_value'];
    echo $total;
}

Hope it clears.