$stmt = $dbh->prepare("INSERT INTO myblob VALUES('',?,?,?)");
//
$stmt = $dbh->prepare(INSERT INTO myBlob(name, type, data) VALUES(:name, :type, :data)
$stmt->bindParam('name',$name);
$stmt->bindParam('type',$type);
$stmt->bindParam('data',$data);
$stmt = $dbh->prepare("INSERT INTO myblob VALUES('',?,?,?)");
$stmt = $dbh->prepare(INSERT INTO myBlob(name, type, data) VALUES(:name, :type, :data)
$stmt->bindParam('name',$name);
$stmt->bindParam('type',$type);
$stmt->bindParam('data',$data);