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<?php
namespace Doctrine\DBAL\Driver\SQLSrv;
use Doctrine\DBAL\Driver\FetchUtils;
use Doctrine\DBAL\Driver\Result;
use Doctrine\DBAL\Driver\SQLSrv\Exception\Error;
use Doctrine\DBAL\Driver\Statement as StatementInterface;
use Doctrine\DBAL\Driver\StatementIterator;
use Doctrine\DBAL\FetchMode;
use Doctrine\DBAL\ParameterType;
use IteratorAggregate;
use PDO;
use function array_key_exists;
use function count;
use function func_get_args;
use function in_array;
use function is_int;
use function is_numeric;
use function sqlsrv_errors;
use function sqlsrv_execute;
use function sqlsrv_fetch;
use function sqlsrv_fetch_array;
use function sqlsrv_fetch_object;
use function sqlsrv_get_field;
use function sqlsrv_next_result;
use function sqlsrv_num_fields;
use function SQLSRV_PHPTYPE_STREAM;
use function SQLSRV_PHPTYPE_STRING;
use function sqlsrv_prepare;
use function sqlsrv_rows_affected;
use function SQLSRV_SQLTYPE_VARBINARY;
use function stripos;
use const SQLSRV_ENC_BINARY;
use const SQLSRV_ENC_CHAR;
use const SQLSRV_ERR_ERRORS;
use const SQLSRV_FETCH_ASSOC;
use const SQLSRV_FETCH_BOTH;
use const SQLSRV_FETCH_NUMERIC;
use const SQLSRV_PARAM_IN;
/**
* SQL Server Statement.
*
* @deprecated Use {@link Statement} instead
*/
class SQLSrvStatement implements IteratorAggregate, StatementInterface, Result
{
/**
* The SQLSRV Resource.
*
* @var resource
*/
private $conn;
/**
* The SQL statement to execute.
*
* @var string
*/
private $sql;
/**
* The SQLSRV statement resource.
*
* @var resource|null
*/
private $stmt;
/**
* References to the variables bound as statement parameters.
*
* @var mixed
*/
private $variables = [];
/**
* Bound parameter types.
*
* @var int[]
*/
private $types = [];
/**
* Translations.
*
* @var int[]
*/
private static $fetchMap = [
FetchMode::MIXED => SQLSRV_FETCH_BOTH,
FetchMode::ASSOCIATIVE => SQLSRV_FETCH_ASSOC,
FetchMode::NUMERIC => SQLSRV_FETCH_NUMERIC,
];
/**
* The name of the default class to instantiate when fetching class instances.
*
* @var string
*/
private $defaultFetchClass = '\stdClass';
/**
* The constructor arguments for the default class to instantiate when fetching class instances.
*
* @var mixed[]
*/
private $defaultFetchClassCtorArgs = [];
/**
* The fetch style.
*
* @var int
*/
private $defaultFetchMode = FetchMode::MIXED;
/**
* The last insert ID.
*
* @var LastInsertId|null
*/
private $lastInsertId;
/**
* Indicates whether the statement is in the state when fetching results is possible
*
* @var bool
*/
private $result = false;
/**
* Append to any INSERT query to retrieve the last insert id.
*
* @deprecated This constant has been deprecated and will be made private in 3.0
*/
public const LAST_INSERT_ID_SQL = ';SELECT SCOPE_IDENTITY() AS LastInsertId;';
/**
* @internal The statement can be only instantiated by its driver connection.
*
* @param resource $conn
* @param string $sql
*/
public function __construct($conn, $sql, ?LastInsertId $lastInsertId = null)
{
$this->conn = $conn;
$this->sql = $sql;
if (stripos($sql, 'INSERT INTO ') !== 0) {
return;
}
$this->sql .= self::LAST_INSERT_ID_SQL;
$this->lastInsertId = $lastInsertId;
}
/**
* {@inheritdoc}
*/
public function bindValue($param, $value, $type = ParameterType::STRING)
{
if (! is_numeric($param)) {
throw new SQLSrvException(
'sqlsrv does not support named parameters to queries, use question mark (?) placeholders instead.'
);
}
$this->variables[$param] = $value;
$this->types[$param] = $type;
return true;
}
/**
* {@inheritdoc}
*/
public function bindParam($param, &$variable, $type = ParameterType::STRING, $length = null)
{
if (! is_numeric($param)) {
throw new SQLSrvException(
'sqlsrv does not support named parameters to queries, use question mark (?) placeholders instead.'
);
}
$this->variables[$param] =& $variable;
$this->types[$param] = $type;
// unset the statement resource if it exists as the new one will need to be bound to the new variable
$this->stmt = null;
return true;
}
/**
* {@inheritdoc}
*
* @deprecated Use free() instead.
*/
public function closeCursor()
{
$this->free();
return true;
}
/**
* {@inheritdoc}
*/
public function columnCount()
{
if ($this->stmt === null) {
return 0;
}
return sqlsrv_num_fields($this->stmt) ?: 0;
}
/**
* {@inheritdoc}
*
* @deprecated The error information is available via exceptions.
*/
public function errorCode()
{
$errors = sqlsrv_errors(SQLSRV_ERR_ERRORS);
if ($errors) {
return $errors[0]['code'];
}
return false;
}
/**
* {@inheritdoc}
*
* @deprecated The error information is available via exceptions.
*/
public function errorInfo()
{
return (array) sqlsrv_errors(SQLSRV_ERR_ERRORS);
}
/**
* {@inheritdoc}
*/
public function execute($params = null)
{
if ($params) {
$hasZeroIndex = array_key_exists(0, $params);
foreach ($params as $key => $val) {
if ($hasZeroIndex && is_int($key)) {
$this->bindValue($key + 1, $val);
} else {
$this->bindValue($key, $val);
}
}
}
if (! $this->stmt) {
$this->stmt = $this->prepare();
}
if (! sqlsrv_execute($this->stmt)) {
throw Error::new();
}
if ($this->lastInsertId) {
sqlsrv_next_result($this->stmt);
sqlsrv_fetch($this->stmt);
$this->lastInsertId->setId(sqlsrv_get_field($this->stmt, 0));
}
$this->result = true;
return true;
}
/**
* Prepares SQL Server statement resource
*
* @return resource
*
* @throws SQLSrvException
*/
private function prepare()
{
$params = [];
foreach ($this->variables as $column => &$variable) {
switch ($this->types[$column]) {
case ParameterType::LARGE_OBJECT:
$params[$column - 1] = [
&$variable,
SQLSRV_PARAM_IN,
SQLSRV_PHPTYPE_STREAM(SQLSRV_ENC_BINARY),
SQLSRV_SQLTYPE_VARBINARY('max'),
];
break;
case ParameterType::BINARY:
$params[$column - 1] = [
&$variable,
SQLSRV_PARAM_IN,
SQLSRV_PHPTYPE_STRING(SQLSRV_ENC_BINARY),
];
break;
case ParameterType::ASCII:
$params[$column - 1] = [
&$variable,
SQLSRV_PARAM_IN,
SQLSRV_PHPTYPE_STRING(SQLSRV_ENC_CHAR),
];
break;
default:
$params[$column - 1] =& $variable;
break;
}
}
$stmt = sqlsrv_prepare($this->conn, $this->sql, $params);
if (! $stmt) {
throw Error::new();
}
return $stmt;
}
/**
* {@inheritdoc}
*
* @deprecated Use one of the fetch- or iterate-related methods.
*/
public function setFetchMode($fetchMode, $arg2 = null, $arg3 = null)
{
$this->defaultFetchMode = $fetchMode;
$this->defaultFetchClass = $arg2 ?: $this->defaultFetchClass;
$this->defaultFetchClassCtorArgs = $arg3 ? (array) $arg3 : $this->defaultFetchClassCtorArgs;
return true;
}
/**
* {@inheritdoc}
*
* @deprecated Use iterateNumeric(), iterateAssociative() or iterateColumn() instead.
*/
public function getIterator()
{
return new StatementIterator($this);
}
/**
* {@inheritdoc}
*
* @deprecated Use fetchNumeric(), fetchAssociative() or fetchOne() instead.
*
* @throws SQLSrvException
*/
public function fetch($fetchMode = null, $cursorOrientation = PDO::FETCH_ORI_NEXT, $cursorOffset = 0)
{
// do not try fetching from the statement if it's not expected to contain result
// in order to prevent exceptional situation
if ($this->stmt === null || ! $this->result) {
return false;
}
$args = func_get_args();
$fetchMode = $fetchMode ?: $this->defaultFetchMode;
if ($fetchMode === FetchMode::COLUMN) {
return $this->fetchColumn();
}
if (isset(self::$fetchMap[$fetchMode])) {
return sqlsrv_fetch_array($this->stmt, self::$fetchMap[$fetchMode]) ?: false;
}
if (in_array($fetchMode, [FetchMode::STANDARD_OBJECT, FetchMode::CUSTOM_OBJECT], true)) {
$className = $this->defaultFetchClass;
$ctorArgs = $this->defaultFetchClassCtorArgs;
if (count($args) >= 2) {
$className = $args[1];
$ctorArgs = $args[2] ?? [];
}
return sqlsrv_fetch_object($this->stmt, $className, $ctorArgs) ?: false;
}
throw new SQLSrvException('Fetch mode is not supported!');
}
/**
* {@inheritdoc}
*
* @deprecated Use fetchAllNumeric(), fetchAllAssociative() or fetchFirstColumn() instead.
*/
public function fetchAll($fetchMode = null, $fetchArgument = null, $ctorArgs = null)
{
$rows = [];
switch ($fetchMode) {
case FetchMode::CUSTOM_OBJECT:
while (($row = $this->fetch(...func_get_args())) !== false) {
$rows[] = $row;
}
break;
case FetchMode::COLUMN:
while (($row = $this->fetchColumn()) !== false) {
$rows[] = $row;
}
break;
default:
while (($row = $this->fetch($fetchMode)) !== false) {
$rows[] = $row;
}
}
return $rows;
}
/**
* {@inheritdoc}
*
* @deprecated Use fetchOne() instead.
*/
public function fetchColumn($columnIndex = 0)
{
$row = $this->fetch(FetchMode::NUMERIC);
if ($row === false) {
return false;
}
return $row[$columnIndex] ?? null;
}
/**
* {@inheritdoc}
*/
public function fetchNumeric()
{
return $this->doFetch(SQLSRV_FETCH_NUMERIC);
}
/**
* {@inheritdoc}
*/
public function fetchAssociative()
{
return $this->doFetch(SQLSRV_FETCH_ASSOC);
}
/**
* {@inheritdoc}
*/
public function fetchOne()
{
return FetchUtils::fetchOne($this);
}
/**
* {@inheritdoc}
*/
public function fetchAllNumeric(): array
{
return FetchUtils::fetchAllNumeric($this);
}
/**
* {@inheritdoc}
*/
public function fetchAllAssociative(): array
{
return FetchUtils::fetchAllAssociative($this);
}
/**
* {@inheritdoc}
*/
public function fetchFirstColumn(): array
{
return FetchUtils::fetchFirstColumn($this);
}
/**
* {@inheritdoc}
*/
public function rowCount()
{
if ($this->stmt === null) {
return 0;
}
return sqlsrv_rows_affected($this->stmt) ?: 0;
}
public function free(): void
{
// not having the result means there's nothing to close
if ($this->stmt === null || ! $this->result) {
return;
}
// emulate it by fetching and discarding rows, similarly to what PDO does in this case
// @link http://php.net/manual/en/pdostatement.closecursor.php
// @link https://github.com/php/php-src/blob/php-7.0.11/ext/pdo/pdo_stmt.c#L2075
// deliberately do not consider multiple result sets, since doctrine/dbal doesn't support them
while (sqlsrv_fetch($this->stmt)) {
}
$this->result = false;
}
/**
* @return mixed|false
*/
private function doFetch(int $fetchType)
{
// do not try fetching from the statement if it's not expected to contain the result
// in order to prevent exceptional situation
if ($this->stmt === null || ! $this->result) {
return false;
}
return sqlsrv_fetch_array($this->stmt, $fetchType) ?? false;
}
}