通过URL在页面中传递变量

Question

Here are two codes one works fine while other doesn't can anyone explain me what is wrong with second code.

$Id = $row['id'];
<a href="page2.php?Id=<?php echo $row['id'] ?>">Product></a>

The code above works fine. But the code below doesn't. On page two I am using get method.

<a href="page2.php?Id=$Id">Product></a>

Answer 1

You not print php variable without echo or php tag

<a href="page2.php?Id=<?php echo $Id; ?>">Product></a>

So change this :-

href="page2.php?Id=$Id"

to this :-

href="page2.php?Id=<?php echo $Id; ?>"