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<?php
if (! extension_loaded('mssql') && extension_loaded('pdo_sqlsrv')) {
//Return an associative array. Used on mssql_fetch_array()'s result_type parameter.
define('MSSQL_ASSOC', '1');
//Return an array with numeric keys. Used on mssql_fetch_array()'s result_type parameter.
define('MSSQL_NUM', '2');
//Return an array with both numeric keys and keys with their field name. This is the default value for mssql_fetch_array()'s result_type parameter.
define('MSSQL_BOTH', '3');
//Indicates the 'TEXT' type in MSSQL, used by mssql_bind()'s type parameter.
define('SQLTEXT', '35');
//Indicates the 'VARCHAR' type in MSSQL, used by mssql_bind()'s type parameter.
define('SQLVARCHAR', '39');
//Indicates the 'CHAR' type in MSSQL, used by mssql_bind()'s type parameter.
define('SQLCHAR', '47');
//Represents one byte, with a range of -128 to 127.
define('SQLINT1', '48');
//Represents two bytes, with a range of -32768 to 32767.
define('SQLINT2', '52');
//Represents four bytes, with a range of -2147483648 to 2147483647.
define('SQLINT4', '56');
//Indicates the 'BIT' type in MSSQL, used by mssql_bind()'s type parameter.
define('SQLBIT', '50');
//Represents an four byte float.
define('SQLFLT4', '59');
//Represents an eight byte float.
define('SQLFLT8', '62');
class MSSQL_PDO extends PDO {
public function __construct($dsn, $username="", $password="", $driver_options=array()) {
parent::__construct($dsn,$username,$password, $driver_options);
if (empty($driver_options[PDO::ATTR_STATEMENT_CLASS])) {
$this->setAttribute(PDO::ATTR_STATEMENT_CLASS, array('MSSQL_PDOStatement', array($this)));
}
}
}
class MSSQL_PDOStatement extends PDOStatement {
//public $_all = null;
public $dbh;
protected function __construct($dbh) {
$this->dbh = $dbh;
}
}
function mssql_last_link($link_identifier = null) {
static $last = null;
if ($link_identifier) {
$last = $link_identifier;
}
return $last;
}
function mssql_bind($stmt, $param_name, &$var, $type, $is_output = false, $is_null = false, $maxlen = -1) {
$mssql_type_map = array(
SQLTEXT => PDO::PARAM_LOB,
SQLVARCHAR => PDO::PARAM_STR,
SQLCHAR => PDO::PARAM_STR,
SQLINT1 => PDO::PARAM_INT,
SQLINT2 => PDO::PARAM_INT,
SQLINT4 => PDO::PARAM_INT,
SQLBIT => PDO::PARAM_BOOL,
SQLFLT4 => PDO::PARAM_INT,
SQLFLT8 => PDO::PARAM_INT,
);
$var = $is_null?null:$var;
$ret = $stmt->bindParam($param_name, $var, $mssql_type_map[$type], $is_output?$maxlen:($maxlen<0?null:$maxlen));
return $ret;
}
function mssql_close() {
}
function mssql_connect($servername, $username, $password, $new_link = false) {
$pdo = new MSSQL_PDO('sqlsrv:Server='.$servername, $username, $password);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$pdo->setAttribute(PDO::ATTR_STATEMENT_CLASS, array('MSSQL_PDOStatement', array($pdo)));
mssql_last_link($pdo);
return $pdo;
}
function mssql_pconnect($servername, $username, $password, $new_link = false) {
$pdo = mssql_connect($servername, $username, $password, $new_link);
// @todo this may not work except at connection time.
// this wont work in fast-cgi or pdo_sqlsrv in anycase.
// left here as a woulda-shoulda-cant
//$pdo->setAttribute(PDO::ATTR_PERSISTENT, true);
return $pdo;
}
function mssql_execute($stmt, $skip_results = false) {
return $stmt->execute();
}
function mssql_fetch_array($result, $result_type = MSSQL_BOTH) {
$mssql_result_type = array(
MSSQL_ASSOC => PDO::FETCH_ASSOC,
MSSQL_NUM =>PDO::FETCH_NUM,
MSSQL_BOTH => PDO::FETCH_BOTH
);
return $result->fetch($mssql_result_type[$result_type]);
}
function mssql_fetch_assoc($result) {
return $result->fetch(PDO::FETCH_ASSOC);
}
function mssql_fetch_object($result) {
return $result->fetch(PDO::FETCH_OBJ);
}
function mssql_fetch_row($result) {
return $result->fetch();
}
function mssql_free_result($result) {
return $stmt->closeCursor();
}
function mssql_free_statement($stmt) {
return $stmt->closeCursor();
}
function mssql_get_last_message() {
$link_identifier = mssql_last_link();
$errors = $link_identifier->errorInfo();
return $errors[2];
}
function mssql_init($sp_name, $link_identifier = null) {
if (is_null($link_identifier)) {
$link_identifier = mssql_last_link();
}
return $link_identifier->prepare('exec '.$sp_name);
}
function mssql_next_result($result_id) {
return $result_id->nextRowset();
}
function mssql_num_fields($result) {
return $result->columnCount();
}
function mssql_num_rows($result) {
return $result->rowCount();
}
function mssql_query($query, $link_identifier = null, $batch_size = 0) {
if (is_null($link_identifier)) {
$link_identifier = mssql_last_link();
}
// $stmt = $link_identifier->query($query);
$driver_options = array(
PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL,
PDO::SQLSRV_ATTR_CURSOR_SCROLL_TYPE => PDO::SQLSRV_CURSOR_BUFFERED
);
$stmt = $link_identifier->prepare($query, $driver_options);
$return = $stmt->execute();
// Match mssql_query behavior
if ($return) {
$rows = $stmt->rowCount();
$link_identifier->lastAffected = $rows;
if (is_null($rows)) {
$return = true;
} else {
$return = $stmt;
}
}
return $return;
}
function mssql_data_seek($result_identifier, $row_number) {
/*
if (is_null($result_identifier->_all)) {
$result_identifier->_all = $result_identifier->fetchAll(PDO::FETCH_BOTH);
}
$row = $result_identifier->_all[$row_number];
*/
$row = $result_identifier->fetch(PDO::FETCH_BOTH, PDO::FETCH_ORI_ABS, $row_number);
// Rewind - CI always does a data_seek(0) as a rewind, but that offsets the cursor,
// we have to move to -1 so the next fetch will return the first piece of data
// @todo rather than resetting, it would be better to restore the old position
// if we can't fetch that data somehow then track the position in the statement class
$row = $result_identifier->fetch(PDO::FETCH_BOTH, PDO::FETCH_ORI_ABS, -1);
return $row;
}
function mssql_result($resource, $row, $field) {
$data_row = mssql_data_seek($resource, $row);
return $data_row[$field];
}
function mssql_rows_affected($link_identifier = null) {
if (is_null($link_identifier)) {
$link_identifier = mssql_last_link();
}
return $link_identifier->lastAffected;
}
// @todo try/catch return false on failure
function mssql_select_db($database_name, $link_identifier = null) {
if (is_null($link_identifier)) {
$link_identifier = mssql_last_link();
}
$affected = $link_identifier->exec('USE '.$database_name);
$link_identifier->lastAffected = $affected;
return true;
}
}
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