我对PDO::FETCH_OBJECT
参数有问题。我想获取一个对象,而不是一个数组,但当我尝试这个时:
try {
$conn = new PDO('mysql:host=localhost;dbname=washngo', $config['DB_USERNAME'], $config['DB_PASSWORD']);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); //Fetch errors by default ( display any errors during the development process )
$stmt = $conn->prepare('SELECT * FROM news');
$stmt->execute();
while($row = $stmt->fetch(PDO::FETCH_OBJECT)) { //By default, it fetch an array. The "PDO::FETCH_OBJECT" argument allows us to fetch an object
print_r($row);
}
} catch(PDOException $e) {
echo 'ERROR: ' . $e->getMessage();
}
我得到
致命错误:在index.php的第18行,未定义类常量"
FETCH_OBJECT
"。
当我尝试默认使用fetch()
(没有PDO::FETCH_OBJECT()
)时,它可以正常工作。
正确的不是PDO::FETCH_OBJECT
而是PDO::FETCH_OBJ