ST02: XSS Challenge (Source Code)

Hi everyone.
Here is the XSS Challenge - CT1 source code for your better understanding.

<?php header('X-Frame-Options: deny'); ?>
<head>
    <meta charset="utf-8">
    <meta name='description' content='This is about <?php echo htmlspecialchars(str_replace('+', '', $_GET['xss'])); ?>'>
    <title>XSS Challenge</title>
</head>
<body><center>
<p><a href="?xss=XSS"><img src="safuda.PNG"><br>āĻŸā§āϰāϏ āĻŸā§āϰāϏ āĻ•āϰ⧇ XSS āĻŽāĻžāϰāϤ⧇ āĻšāĻŦ⧇...!</a></p></center>
</body>
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