1. HTML Source Code(Index.php)



<?php

$conn=mysqli_connect("localhost", "root", "", "testproject");

$fetchQry=mysqli_query($conn, "SELECT * FROM userdetails WHERE id=1");

$rows=mysqli_fetch_array($fetchQry);

?>


<form action="send.php" method="post">

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

<input type="text" name="name" value="<?php echo $rows['name']; ?>">

<input type="submit" name="submit" value="Submit">

</form>



2. PHP Source Code(send.php)



<?php

$conn=mysqli_connect("localhost", "root", "", "testproject");

$name=$_POST["name"];

$id=$_POST["id"];

$query=mysqli_query($conn, "UPDATE userdetails SET name='$name' WHERE id='$id'");

if(query==true){

echo"Successfully Inserted";

}

else{

echo"Inserted Failed";

}

?>