public function fetchFields($query)
{
$statement = $this->pdo->prepare($query);
$statement->execute();
$fields = array();
for ($i = 0; $i < $statement->columnCount(); $i++) {
$fields[$statement->getColumnMeta($i)['name']] = $statement->getColumnMeta($i);
// echo $stmt->getColumnMeta($i)['name'], PHP_EOL; //php5.4适使用，之前的版本需拆成两句
}
return $fields;
}
/**
* Performs sql sequence
*
* @param string $sql
* @param mixed $inputs_parameters Simple input parameter or array of inputs
* @return PDOStatement
*/
public function query($sql, $inputs_parameters = array())
{
$this->connect();
if (!is_array($inputs_parameters)) {
$inputs_parameters = array($inputs_parameters);
}
$query = $this->pdo->prepare($sql);
$query->execute($inputs_parameters);
return $query;
}
