php - Show message if inserted successfully PDO -

i wrote php code insert records in mysql database. want display message indicating whether records added database or not. tried several times failed.

code:

<?php try {     $db_user = 'root';     $db_pass = 'cea123';     $db = new pdo( 'mysql:host=localhost;dbname=symposium', $db_user, $db_pass );     $form = $_post;     $sql = "insert app (              firstname, lastname, company, homepage, contactno, addressline1, addressline2, city,           postalcode, country, email,  abstractdetails )              values (              :firstname, :lastname, :company, :homepage, :contactno, :addressline1, :addressline2,          :city,   :postalcode, :country, :email, :abstractdetails )";     $query = $db->prepare( $sql );     $query->execute( array( ':firstname'=>$firstname, ':lastname'=>$lastname, ':company'=>$company, ':homepage'=>$homepage, ':contactno'=>$contactno, ':addressline1'=>$addressline1, ':addressline2'=>$addressline2, ':city'=>$city, ':postalcode'=>$postalcode, ':country'=>$country, ':email'=>$email,  ':abstractdetails'=>$abstractdetails )); } catch(pdoexception $e) {     echo $e->getmessage(); } ?> 

you can check using rowcount function,

if($query->rowcount() > 0){   echo "record inserted !!"; }