我試圖讓PDO啓動並運行在我的Apache服務器上,因此我可以在與MS SQL數據庫交互時使用預準備語句。看來,庫安裝,並且連接好了,但我不能得到它的任何信息,從表中返回MS SQL PDO將不會從表中檢索數據
$dbh = new PDO ("dblib:host=$hostname;dbname=$database","$username","$password");
} catch (PDOException $e) {
echo "Failed to get DB handle: " . $e->getMessage() . "\n";
exit;
}
$stmt = $dbh->prepare("SELECT * FROM asdf");
$stmt->execute();
$result = $stmt->fetchAll(PDO::FETCH_COLUMN, 0);
print_r($result); //prints nothing
var_dump($stmt->fetchAll(PDO::FETCH_COLUMN|PDO::FETCH_GROUP)); //prints nothing
回報
**array(0) { }**
然而,這
$dbh = new PDO("dblib:host=$hostname;dbname=$database", "$username", "$password");
} catch (PDOException $e) {
echo "Failed to get DB handle: ".$e - > getMessage()."\n";
}
$stmt = $dbh - > prepare("SELECT @@VERSION");
$stmt - > execute();
while ($row = $stmt - > fetch()) {
print_r($row);
}
unset($dbh);
unset($stmt);
打印出計算機的詳細信息。
Array ([] => Microsoft SQL Server 2008 R2 (RTM) - 10.50.1617.0 (X64) Apr 22 2011 19:23:43 Copyright (c) Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.1 (Build 7601: Service Pack 1) (Hypervisor) [0] => Microsoft SQL Server 2008 R2 (RTM) - 10.50.1617.0 (X64) Apr 22 2011 19:23:43 Copyright (c) Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.1 (Build 7601: Service Pack 1) (Hypervisor))
所以我認爲PDO是工作在一定程度上。我有一些不好的語法嗎?
請檢查'$ stmt-的返回值>的execute();'確認查詢是成功的。 –
@PhilipWhitehouse謝謝。你的意思是這樣的:'print_r($ stmt-> execute());'?那沒有產生任何東西。 – 1252748
@PhilipWhitehouse其實我有一個錯字。 ''stmt-> execute();''產生'Array()'' – 1252748