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- <?php
- //
- // +----------------------------------------------------------------------+
- // | PHP version 4.0 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997, 1998, 1999, 2000 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.02 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Authors: Sterling Hughes <sterling@php.net> |
- // +----------------------------------------------------------------------+
- //
- // $Id: mssql.php,v 1.12 2000/09/13 11:27:59 ssb Exp $
- //
- // Database independent query interface definition for PHP's Microsoft SQL Server
- // extension.
- //
-
- require_once 'DB/common.php';
-
- class DB_mssql extends DB_common {
-
- var $connection;
- var $phptype, $dbsyntax;
- var $prepare_tokens = array();
- var $prepare_types = array();
-
- function DB_mssql() {
- $this->phptype = 'mssql';
- $this->dbsyntax = 'mssql';
- $this->features = array(
- 'prepare' => false,
- 'pconnect' => true,
- 'transactions' => false
- );
- }
-
- function connect (&$dsn, $persistent=false) {
- if(is_array($dsn)) {
- $dsninfo = &$dsn;
- } else {
- $dsninfo = DB::parseDSN($dsn);
- }
- if (!$dsninfo || !$dsninfo['phptype']) {
- return $this->raiseError();
- }
-
- $user = $dsninfo['username'];
- $pw = $dsninfo['password'];
- $dbhost = $dsninfo['hostspec'] ? $dsninfo['hostspec'] : 'localhost';
- $connect_function = $persistent ? 'mssql_pconnect' : 'mssql_connect';
- if ($dbhost && $user && $pw) {
- $conn = $connect_function($dbhost, $user, $pw);
- } elseif ($dbhost && $user) {
- $conn = $connect_function($dbhost,$user);
- } else {
- $conn = $connect_function($dbhost);
- }
- if ($dsninfo['database']) {
- @mssql_select_db($dsninfo['database'], $conn);
- } else {
- return $this->raiseError();
- }
- $this->connection = $conn;
- return DB_OK;
- }
-
- function disconnect() {
- return @mssql_close($this->connection);
- }
-
- function &query( $stmt ) {
- $this->last_query = $query;
- $result = @mssql_query($stmt, $this->connection);
- if (!$result) {
- return $this->raiseError();
- }
- // Determine which queries that should return data, and which
- // should return an error code only.
- if (preg_match('/(SELECT|SHOW|LIST|DESCRIBE)/i', $stmt)) {
- $resultObj = new DB_result($this, $result);
- return $resultObj;
- } else {
- return DB_OK;
- }
- }
-
- function simpleQuery($stmt) {
- $this->last_query = $query;
- $result = @mssql_query($stmt, $this->connection);
- if (!$result) {
- return $this->raiseError();
- }
- // Determine which queries that should return data, and which
- // should return an error code only.
- if ( preg_match('/(SELECT|SHOW|LIST|DESCRIBE)/i', $stmt) ) {
- return $result;
- } else {
- return DB_OK;
- }
- }
-
- function &fetchRow($result, $fetchmode=DB_FETCHMODE_DEFAULT) {
- if ($fetchmode == DB_FETCHMODE_DEFAULT) {
- $fetchmode = $this->fetchmode;
- }
- if ($fetchmode & DB_FETCHMODE_ASSOC) {
- $row = @mssql_fetch_array($result);
- } else {
- $row = @mssql_fetch_row($result);
- }
- if (!$row) {
- return $this->raiseError();
- }
- return $row;
- }
-
- function fetchInto($result, &$ar, $fetchmode=DB_FETCHMODE_DEFAULT) {
- if ($fetchmode == DB_FETCHMODE_DEFAULT) {
- $fetchmode = $this->fetchmode;
- }
- if ($fetchmode & DB_FETCHMODE_ASSOC) {
- $ar = @mssql_fetch_array($result);
- } else {
- $ar = @mssql_fetch_row($result);
- }
- if (!$ar) {
- return $this->raiseError();
- }
- return DB_OK;
- }
-
- function freeResult($result) {
- if (is_resource($result)) {
- return @mssql_free_result($result);
- }
- if (!isset($this->prepare_tokens[$result])) {
- return false;
- }
- unset($this->prepare_tokens[$result]);
- unset($this->prepare_types[$result]);
- return true;
- }
-
- function numCols($result) {
- $cols = @mssql_num_fields($result);
- if (!$cols) {
- return $this->raiseError();
- }
- return $cols;
- }
-
- function prepare($query) {
- $tokens = split('[\&\?]', $query);
- $token = 0;
- $types = array();
- for ($i = 0; $i < strlen($query); $i++) {
- switch ($query[$i]) {
- case '?':
- $types[$token++] = DB_PARAM_SCALAR;
- break;
- case '&':
- $types[$token++] = DB_PARAM_OPAQUE;
- break;
- }
- }
- $this->prepare_tokens[] = &$tokens;
- end($this->prepare_tokens);
- $k = key($this->prepare_tokens);
- $this->prepare_types[$k] = $types;
- return $k;
- }
-
- function execute($stmt, $data = false) {
- $realquery = $this->execute_emulate_query($stmt, $data);
- $this->last_query = $realquery;
- $result = @mssql_query($realquery, $this->connection);
- if (!$result) {
- return $this->raiseError();
- }
- if ( preg_match('/(SELECT|SHOW|LIST|DESCRIBE)/i', $realquery) ) {
- return $result;
- } else {
- return DB_OK;
- }
- }
-
- function autoCommit($onoff=false) {
- return $this->raiseError(DB_ERROR_NOT_CAPABLE);
- }
-
- function commit() {
- return $this->raiseError(DB_ERROR_NOT_CAPABLE);
- }
-
- function rollback() {
- return $this->raiseError(DB_ERROR_NOT_CAPABLE);
- }
- }
-
- ?>
-