extract($_REQUEST); $num1=rand(0,9); $num2=rand(0,9); $s1=chr(rand(65,90)); $s2=chr(rand(65,90)); $s3=chr(rand(65,90)); $num3=rand(0,9); $num4=rand(0,9); $string=$num1.$num2.$s1.$s2.$s3.$num3.$num4; ?>