php if statement help

trying to display something if 3 differnt things dont equal

already have a variable with a number, if $number < 2000 and Googlebot != the user agent and user doesnt not have a cookie then i want it to echo else i dont

i dont know how to make my if statement
<?php
$expire=time()+60*60*24*1; setcookie("user", "Alex Porter", $expire);
$useragent = $_SERVER['HTTP_USER_AGENT'];
$google = “Googlebot”;
if (strstr($useragent, $google)) {
echo "this";
}
else
{
echo "";
}
?>

 

if (($i > 5) && ($j == 'hello') && (strstr($x, $y) !== false))
   echo "<p>The sun and moon and stars have converged.</p>";

Code (markup):

 

if(($number < 2000) && (!strstr($useragent, “Googlebot”)) && (!IsSet($cookiename)){
echo "this";
}else{
//dothisinstead
}