Передача значения переменной на другую страницу

$sql_select = "SELECT * FROM users";
$result = mysql_query($sql_select);
echo '<table border=2>';
echo '<tr> <td>User ID</td> <td>Name</td> <td>Login</td> <td>Password</td> <td>Contact Data</td> 
<td>Role</td> <td>Actions</td> </tr>';
 
while($row = mysql_fetch_assoc($result)) 
{echo '<tr> <td>'.$row['UserID'].'</td> <td>'.$row['Name'].'</td> <td>'.$row ['Login'].'</td> 
<td>'.$row['Password'].'</td> <td>'.$row['ContData'].'</td> <td>'.$row['Role'].'</td> 
<td> <form action=Modify.php method=post> <input type=submit value=Modify> </form> 
<form action=Delete.php> <input type=submit name=Delete value=Delete> </form> </tr>';
}
echo '</table>';

<?php
require "..\include\app_config.php"; 
require "..\include\connect.php";
$id=$_POST['User ID'];
$name=$_POST[''];
echo "User ID: <input type=text value=$id>";
echo "Name: <input type=text value=$name>";
//это заготовка формы
?>

'...<td> <form action=Modify.php method=post> <input type=submit value=Modify><input type=hidden name=UserID value='.$row['UserID'].'><input type=hidden name=Name value='.$row['Name'].'></form>...'

'...<td> <form action="Modify.php" method="post"> <input type="submit" value="Modify"><input type="hidden" name="UserID" value="'.$row['UserID'].'"><input type="hidden" name="Name" value="'.$row['Name'].'"></form>...'