How to hide Input fields if $GET_() is empty? [closed]

Good day experts!

I’m having trouble hiding the input fields if &_GET(N) method is empty without deleting its php code. Here’s the code below:

<html>
<body>
<?php echo $_GET["subject"]; ?><br><br>
<?php echo $_GET["instruction"]; ?><br><br>
<?php echo '<input type="text">' ; echo $_GET["new_1"]; ?><br>
<?php error_reporting(0); echo '<input type="text">', $_GET["new_2"] ; ?><br>
<?php error_reporting(0); echo '<input type="text">', $_GET["new_3"] ; ?><br>
<?php error_reporting(0); echo '<input type="text">', $_GET["new_4"] ; ?><br>
<?php error_reporting(0); echo '<input type="text">', $_GET["new_5"] ; ?><br>
</body>
</html>