Fixed example so that it runs

Author: derickr

language/operators/functional.xml

@@ -48,15 +48,15 @@ $result = "PHP Rocks"
     |> (fn($x) => array_map(strtoupper(...), $x))
     |> (fn($x) => array_filter($x, fn($v) => $v != 'O'))
 ;
-echo $result, PHP_EOL;
+print_r($result);
 
 $temp = "PHP Rocks";
 $temp = htmlentities($temp);
 $temp = str_split($temp);
 $temp = array_map(strtoupper(...), $temp);
 $temp = array_filter($temp, fn($v) => $v != 'O');
 $result = $temp;
-echo $result, PHP_EOL;
+print_r($result);
 ?>
 ]]>
    </programlisting>