$ php -a
Interactive mode enabled

php > $s = "localhost";
php > $u = "root";
php > $p = "123456"
php > $d = "fuel_dev";
PHP Parse error:  syntax error, unexpected '$d' (T_VARIABLE) in php shell code on line 2
php > $p = "123456";
php > $d = "fuel_dev";
php > $conn = new PDO("mysql:host=$s;dbname=$d;", $u, $p);
php > $sql = "update posts set title=:title, body=:body where id=:id";
php > $stmt = $conn->prepare($sql);
php > $stmt->bindParam(:title, 'lets edit this');
PHP Parse error:  syntax error, unexpected ':' in php shell code on line 1
php > $stmt->bindParam(':title', 'lets edit this');
PHP Warning:  Uncaught Error: Cannot pass parameter 2 by reference in php shell code:1
Stack trace:
#0 {main}
  thrown in php shell code on line 1
php > $stmt->bindParam(':body', 'lets also edit this');
PHP Warning:  Uncaught Error: Cannot pass parameter 2 by reference in php shell code:1
Stack trace:
#0 {main}
  thrown in php shell code on line 1
php > $stmt->bindParam(':id', '2');
PHP Warning:  Uncaught Error: Cannot pass parameter 2 by reference in php shell code:1
Stack trace:
#0 {main}
  thrown in php shell code on line 1
php > $r = $stmt->execute();
PHP Warning:  PDOStatement::execute(): SQLSTATE[HY093]: Invalid parameter number: no parameters were bound in php shell code on line 1
php > echo $stmt ? "one" : "zero"
php > ;
one
php >