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mssql.php
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PHP Script
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2001-02-19
|
5KB
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166 lines
<?php
//
// +----------------------------------------------------------------------+
// | PHP version 4.0 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2001 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 1.19 2001/02/19 12:22:26 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->DB_common();
$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(mssql_get_last_message());
}
$this->dsn = $dsninfo;
$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(mssql_get_last_message());
}
$this->connection = $conn;
return DB_OK;
}
function disconnect()
{
return @mssql_close($this->connection);
}
function simpleQuery($query)
{
$this->last_query = $query;
$query = $this->modifyQuery($query);
$result = @mssql_query($query, $this->connection);
if (!$result) {
return $this->raiseError(mssql_get_last_message());
}
// Determine which queries that should return data, and which
// should return an error code only.
return DB::isManip($query) ? DB_OK : $result;
}
function &fetchRow($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 (!$row) {
if ($msg = mssql_get_last_message()) {
return $this->raiseError($msg);
} else {
return null;
}
}
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 $this->raiseError(mssql_get_last_message());
}
return DB_OK;
}
function freeResult($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(mssql_get_last_message());
}
return $cols;
}
function numRows($result)
{
$rows = @mssql_num_rows($result);
if (!$rows) {
return $this->raiseError(mssql_get_last_message());
}
return $rows;
}
}
?>