Question

I’m trying to run a native SQL query using doctrine and am running into problems with it quoting the numbers for the LIMIT part of my query.

    $offset = $pageNumber * self::$limit;

    $sql = "
        SELECT * FROM devices LIMIT :offset, :limit
    ";
    $stmt = self::getEntityManager()->getConnection()->prepare($sql);
    $stmt->bindValue("offset", $offset);
    $stmt->bindValue("limit", self::$limit);
    $stmt->execute();
    $result = $stmt->fetchAll();

Generates:

SELECT * FROM devices LIMIT '0', '5000'

Which is not valid. I’m a little stumped on how I can alter this to produce:

SELECT * FROM devices LIMIT 0, 5000

I’ve referenced data-retrieval-and-manipulation which has a section about the quote() functions, but it’s shy on details.

Answer 1

Try :

$stmt->bindValue("offset", $offset, PDO::PARAM_INT);

See source here:

 28: class MysqliStatement implements \IteratorAggregate, Statement
 29: {
 30:     protected static $_paramTypeMap = array(
 31:         PDO::PARAM_STR => 's',
 32:         PDO::PARAM_BOOL => 'i',
 33:         PDO::PARAM_NULL => 's',
 34:         PDO::PARAM_INT => 'i',
 35:         PDO::PARAM_LOB => 's' // TODO Support LOB bigger then max package size.
 36:     );