PHP PDO Select查询未从数据库中选择行

Question

I am running this PDO query:

$stmt = $pdo_conn->prepare("SELECT * from billing_control where sequence = :sequence ");
$stmt->execute(array(':sequence' => $_GET["sequence"]));
$result = $stmt->fetch();

to select rows from a database but when i do a var_dump($smtm); I get this result:

object(PDOStatement)#2 (1) { ["queryString"]=> string(57) "SELECT * from billing_control where sequence = :sequence " }

I have ?sequence=178 on the end of my URL so it should be running the SQL:

select * from billing_control where sequence = 178

Any ideas what I have got wrong?

Answer 1

Try:

$stmt = $pdo_conn->prepare("SELECT * from billing_control where sequence = :sequence ");
$stmt->bindParam(':sequence', $_GET["sequence"])
$stmt->execute();

Another version would be:

$stmt = $pdo_conn->prepare("SELECT * from billing_control where sequence = ? ");
$stmt->execute(array("%$_GET[sequence]%"));

Answer 2

Try this

$query = $pdo_conn->prepare("SELECT * from billing_control where sequence = :sequence ");
$query->bindParam(':sequence', $_GET["sequence"], PDO::PARAM_STR, 255); //I assume that sequence data is string
$result = $query->execute();