正在连接.如果您不这样做,连接失败将默认将DB凭据显示给您网站的所有用户.

try {
    $dbh = new PDO("MysqL:host=localhost;dbname=phor_lang","phor_lang","'9lsnthsn9");
} catch (PDOException $e) {
    error(false,"PDO ERROR: " . $e->getMessage());
}

用查询

$stmt = $dbh->prepare("INSERT INTO sets");
$stmt->execute()
    or error(0,"USERS ERROR ".__LINE__." ".print_r($dbh->errorInfo(),true));
$setID = $dbh->lastInsertID();
$stmt->closeCursor();

$stmt = $dbh->prepare("INSERT INTO words (language,name,detail,user,type,set) VALUES (?,?,?)");
$stmt->execute(array($l1l,$l1w,$l1d,$userID,'training',$setID))
    or error(0,true));
$stmt->closeCursor();

但是,这会导致查询失败(执行返回false),错误消息为空.