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//usr/share/pear/DB/msql.php

<?php
//
// +----------------------------------------------------------------------+
// | PHP Version 4                                                        |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2002 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.               |
// +----------------------------------------------------------------------+
// | Author: Sterling Hughes <sterling@php.net>                           |
// +----------------------------------------------------------------------+
//
// $Id: msql.php,v 1.3 2002/05/09 12:29:53 ssb Exp $
//
// Database independent query interface definition for PHP's Mini-SQL
// extension.
//

require_once 'DB/common.php';

class DB_msql extends DB_common
{
    var $connection;
    var $phptype, $dbsyntax;
    var $prepare_tokens = array();
    var $prepare_types = array();

function DB_msql()
    {
        $this->DB_common();
        $this->phptype = 'msql';
        $this->dbsyntax = 'msql';
        $this->features = array(
            'prepare' => false,
            'pconnect' => true,
            'transactions' => false,
            'limit' => 'emulate'
        );
    }

function connect($dsninfo, $persistent = false)
    {
        if (!DB::assertExtension('msql'))
            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);

$this->dsn = $dsninfo;
        $user = $dsninfo['username'];
        $pw = $dsninfo['password'];
        $dbhost = $dsninfo['hostspec'] ? $dsninfo['hostspec'] : 'localhost';

$connect_function = $persistent ? 'msql_pconnect' : 'msql_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 (!$conn) {
            $this->raiseError(DB_ERROR_CONNECT_FAILED);
        }
        if (!@msql_select_db($dsninfo['database'], $conn)){
            return $this->raiseError(DB_ERROR_NODBSELECTED);
        }
        $this->connection = $conn;
        return DB_OK;
    }

function disconnect()
    {
        $ret = @msql_close($this->connection);
        $this->connection = null;
        return $ret;
    }

function simpleQuery($query)
    {
        $this->last_query = $query;
        $query = $this->modifyQuery($query);
        $result = @msql_query($query, $this->connection);
        if (!$result) {
            return $this->raiseError();
        }
        // Determine which queries that should return data, and which
        // should return an error code only.
        return DB::isManip($query) ? DB_OK : $result;
    }

// {{{ nextResult()

/**
     * Move the internal msql result pointer to the next available result
     *
     * @param a valid fbsql result resource
     *
     * @access public
     *
     * @return true if a result is available otherwise return false
     */
    function nextResult($result)
    {
        return false;
    }

// }}}

function numCols($result)
    {
        $cols = @msql_num_fields($result);
        if (!$cols) {
            return $this->raiseError();
        }
        return $cols;
    }

function numRows($result)
    {
        $rows = @msql_num_rows($result);
        if (!$rows) {
            return $this->raiseError();
        }
        return $rows;
    }

/**
     * Gets the number of rows affected by a query.
     *
     * @return number of rows affected by the last query
     */

function affectedRows()
    {
        return @msql_affected_rows($this->connection);
    }

// {{{ getSpecialQuery()

/**
    * Returns the query needed to get some backend info
    * @param string $type What kind of info you want to retrieve
    * @return string The SQL query string
    */
    function getSpecialQuery($type)
    {
        switch ($type) {
            case 'tables':
            default:
                return null;
        }
        return $sql;
    }

// }}}

}
?>