Solo he echo esto:
Código PHP:
   echo "Scanner<br>"
."<form name=\"form2\" method=\"post\" action=\"\">"
 ."<input name=\"radiobutton\" type=\"radio\" value=\"radiobutton\"> A "
 ."<input name=\"radiobutton\" type=\"radio\" value=\"radiobutton\" checked>  B"
  ."<input type=\"submit\" name=\"CatSubmit\" value=\"Enviar\">"
."</form>"; 
    
 
