<?php
/*
    Microsoft SQL Server Driver for PHP - Unit Test Framework
    Copyright (c) Microsoft Corporation.  All rights reserved.

    Description:
        Common functions (shared by all tests).

*/

// TO BE DELETED
function connect($options=array())
{
  try 
  {
    // simply use $databaseName from MsSetup.inc to facilitate testing in Azure,  
    // which does not support switching databases
    require  'MsSetup.inc';
    $conn = new PDO( "sqlsrv:Server=$server;database=$databaseName;Driver=$driver;ConnectionPooling=false;" , $uid, $pwd, $options); 
    $conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
    return $conn;
  }
  
  catch( PDOException $e ) 
  {
    var_dump( $e );
    exit;
  }
    
  catch(Exception $e) 
  {
     var_dump( $e );
     exit;
  }
}

/**
 * Create a table
 * @param object $conn : PDO connection object
 * @param string $tbname : name of the table to be created
 * @param array $columnMetaArr : array of columnMeta objects, which contain metadata for one column
 */
function create_table( $conn, $tbname, $columnMetaArr )
{
    try
    {
        DropTable( $conn, $tbname );
        $colDef = "";
        foreach ( $columnMetaArr as $meta )
        {
            $colDef = $colDef . $meta->getColDef() . ", ";
        }
        $colDef = rtrim( $colDef, ", " );
        $createSql = "CREATE TABLE $tbname ( $colDef )";
        $conn->exec( $createSql );
    }
    catch ( Exception $e )
    {
        var_dump( $e );
        exit;
    }   
}


/**
 * class for encapsulating optional parameters for PDOStatement::bindParam
 */
class bindParamOption {
    public $index;      //1-based index of the parameter
    public $pdoType;    //PDO_PARAM_ type specified for PDOStatement::bindParam
    public $length;     //length specified for PDOStatement::bindParam
    public $options;    //options specified for PDOStatement::bindParam
        
    function __construct( $index, $pdoType = null, $length = null, $options = null )
    {
        $this->index = $index;
        $this->pdoType = $pdoType;
        $this->length = $length;
        $this->options = $options;
    }
    /**
     * @param object $stmt : PDO Statement object
     * @param mix $var : variable to bind to the SQL statement parameter
     */
    function bindWithOp( $stmt, $var )
    {
        $stmt->bindParam( $this->index, $var, constant( $this->pdoType ), $this->length, $this->options );
    }
}


/**
 * Insert a row into a table
 * @param object $conn : PDO connection object
 * @param string $tbname : name of the table for the row to be inserted
 * @param array $inputs : an associative array column name and its value
 * @param bool $r : true if the row was successfully inserted, otherwise false. Default value is null to make this parameter optional.
 * $param string $api : PDO_SQLSRV API used for executing the insert query
 *                      accepted values: "exec", "query", "prepare", "prepareBindParam"
 * @param array $paramOption : an array of bindParamOptions. Should only be provided if $api is "perpareWithParamOp", if provided, has to be in the same order as $inputs
 * @return object PDOStatement object of the insert statement
 */
function insert_row( $conn, $tbname, $inputs, &$r = null, $api = "query", $paramOption = array() )
{
    try 
    {
        require  'MsSetup.inc';
        
        $stmt = null;
        if ( $keystore == "none" && $api != "prepareBindParam" )
        {
            $insertSql = get_insertSql_complete( $tbname, $inputs );
            switch ( $api ) {
                case "exec":
                    $conn->exec( $insertSql );
                    break;
                case "query":
                    $stmt = $conn->query( $insertSql );
                    break;
                case "prepare":
                    $stmt = $conn->prepare( $insertSql );
                    $r = $stmt->execute();
                    break;
            }
        }
        else
        {
            // if AE is on, must bind param
            $insertSql = get_insertSql_placeholders( $tbname, $inputs );
            $stmt = $conn->prepare( $insertSql );
            if ( empty( $paramOption ))
            {
                $i = 1;
                foreach( $inputs as $key => $value )
                {
                    $stmt->bindParam( $i, $inputs[$key] );
                    $i++;
                }
            }
            else
            {   
                $i = 1;
                foreach( $inputs as $key => $value )
                {
                    $noparam = true;
                    foreach( $paramOption as $op )
                    {
                        if ( $op->index == $i )
                        {
                            $op->bindWithOp( $stmt, $inputs[$key] );
                            $noparam = false;
                            $i++;
                            break;
                        }
                    }
                    if ( $noparam ) 
                    {
                        $stmt->bindParam( $i, $inputs[$key] );
                        $i++;
                    }
                }
            }
            $r = $stmt->execute();
        }
        return $stmt;
    }
    catch ( Exception $e )
    {
        var_dump( $e );
        exit;
    }
}


/**
 * @param string $tbname : name of the table for an insert sql
 * @param array $inputs : associative array containing a key value pair of column name and data to put into an insert sql string
 * @return string a complete insert sql string
 */
function get_insertSql_complete( $tbname, $inputs )
{
    $colStr = "INSERT INTO $tbname (";
    $valStr = "VALUES (";
    if ( empty( $inputs ))
    {
        echo "get_insertSql_complete: inputs for inserting a row cannot be empty.\n";
        return;
    }
    foreach( $inputs as $key => $value )
    {
        $colStr .= $key . ", ";
        if ( is_null( $value ))
            echo "get_insertSql_complete: value provided for input $value is null.\n";
        elseif ( is_string( $value ))
            $valStr .= "'" . $value . "', ";
        else
            $valStr .= $value . ", ";
    }
    $colStr = rtrim( $colStr, ", " ) . ") ";
    $valStr = rtrim( $valStr, ", " ) . ") ";
    $insertSql = $colStr . $valStr;
    return $insertSql;
}


/**
 * @param string $tbname : name of the table for an insert sql
 * @param array $input : associative array containing a key value pair of column name and data to put into an insert sql string
 * @return string an insert sql string with "?" placeholders for all values
 */
function get_insertSql_placeholders( $tbname, $inputs )
{
    $colStr = "INSERT INTO $tbname (";
    $valStr = "VALUES (";
    if ( empty( $inputs ))
    {
        echo "get_insertSql_placeholders: inputs for inserting a row cannot be empty.\n";
        return;
    }
    foreach( $inputs as $key => $value )
    {
        $colStr .= $key . ", ";
    }
    $colStr = rtrim( $colStr, ", " ) . ") ";
    $valStr .= get_seq_placeholders( count( $inputs )) . ") ";
    $insertSql = $colStr . $valStr;
    return $insertSql;
}


/**
 * @param string $spname : name of the stored procedure
 * @param int $num : number of parameters needed for the stored procedure
 * @return string a call stored procedure sql string with "?" placeholders for all parameters
 */
function get_callProcSql_placeholders( $spname, $num )
{
    $callStr = "{CALL $spname (";
    $callStr .= get_seq_placeholders( $num ) . ")} ";
    return $callStr;
}


/**
 * @param int $num : number of placeholders needed
 * @return string a string containing $num number of repeated "?" placeholders delimited by ", "
 */
function get_seq_placeholders( $num )
{
    if ( $num < 0 )
    {
        echo "get_seq_placeholders: num provided for creating a sequence of placeholders cannot be less than 0.\n";
        return;
    }
    $placeholderStr = str_repeat( "?, ", $num );
    $placeholderStr = rtrim( $placeholderStr, ", " );
    return $placeholderStr;
}


/**
 * Fetch all rows and all columns given a table name, and print them
 * @param object $conn : PDO connection object
 * @param string $tbname : name of the table to fetch from
 */
function fetch_all( $conn, $tbname ) {
    try
    {
        $sql = "SELECT * FROM $tbname";
        $stmt = $conn->query( $sql );
        while ( $row = $stmt->fetch( PDO::FETCH_ASSOC ))
        {
            foreach ( $row as $key => $value ) 
            {
                print ( "$key: $value\n" );
            }
        }
    }
    catch ( Exception $e )
    {
        var_dump( $e );
        exit;
    }
}


/**
 * @return bool false if $keystore specified in MsSetup.inc is none, otherwise return true
 */
function is_col_enc()
{
    require  'MsSetup.inc';
    if ( $keystore == "none" )
        return false;
    else
        return true;
}

function teardown()
{
    // TBD
}


function my_print_r( $to_print )
{
   global $verbose;
   if($verbose)
      print_r($to_print);
}


function TestMode()
{
    $testMode = getenv('PHPT_EXEC');
    return ($testMode ? true : false);
}

function IsPdoMode()
{
    require  'MsSetup.inc';
    return (($driverType === true) ? true : false);
}


function TraceMode()
{
    require  'MsSetup.inc';
    return ((!TestMode() && $traceEnabled) ? true : false);
}

function IsMarsSupported()
{
    require  'MsSetup.inc';
    return ($marsMode ? true : false);
}

function IsDaasMode()
{
    require  'MsSetup.inc';
    return ($daasMode ? true : false);
}

function FatalError($errorMsg)
{
    if (!IsPdoMode())
    {
        handle_errors();
    }
    die("$errorMsg\n");
}

function Trace($msg)
{
    if (TraceMode())
    {
        echo $msg;
    }
}

function TraceEx($msg, $exitMode)
{
    if ($exitMode)
    {
        FatalError($msg);
    }
    else
    {
        Trace("$msg\n");
    }
}

function TraceData($sqlType, $data)
{
    if (TraceMode())
    {
        $msg = strtoupper(" $sqlType:");
        echo "$msg\t";
        if (strlen($msg) <= 7)
        {
            echo "\t";
        }
        if (strlen($msg) <= 15)
        {
            echo "\t";
        }
        echo "$data\n"
;
    }
}

function StartTest($testName)
{
    require  'MsSetup.inc';

    if (TraceMode())
    {
        echo "$PhpDriver: starting \"$testName\" test...\n\n";
    }

    if (!extension_loaded(IsPdoMode() ? "pdo" : "sqlsrv"))
    {
        die("$PhpDriver cannot be loaded.");
    }

    // Set timezone
    $tz = ini_get('date.timezone');
    if (strcmp($tz, "") == 0)
    {
        date_default_timezone_set('America/Los_Angeles');
        $tz = date_default_timezone_get();
    }
    Trace("Timezone: $tz.\n");
}

function EndTest($testName)
{
    require  'MsSetup.inc';

    if (TraceMode())
    {
        echo "\n$PhpDriver: "
;
    }
    echo "Test \"$testName\" completed successfully.\n"
;
}


function Setup()
{
    set_time_limit(0);

    if (IsPdoMode())
    {   // PDO setup
    }
    else
    {   // PHP setup
        sqlsrv_configure('LogSubsystems', SQLSRV_LOG_SYSTEM_ALL);   
        sqlsrv_configure('LogSeverity', SQLSRV_LOG_SEVERITY_ALL);   
        sqlsrv_configure('WarningsReturnAsErrors', 1);
    }
}

function Configure($param, $expected)
{
    if (!IsPdoMode())
    {
        sqlsrv_configure($param, $expected);
        $actual = sqlsrv_get_config($param);

        if ($actual == $expected)
        {
            Trace("Set configuration parameter $param = $actual.\n");
        }
        else
        {
            die("Failed to set configuration parameter $param = $expected.");   
        }
    }
}

function GetTempTableName($table = '', $temporary = true)
{
    // A temporary table name with the '#' prefix will be automatically 
    // dropped once the connection is closed. Otherwise, the caller 
    // should take care of dropping the temp table afterwards.
    
    $timestamp = round(microtime(true)*1000);
    
    $prefix = '';
    if ($temporary)
        $prefix = '#';
        
    if (strlen($table) == 0)
        $table = 'php_test_table';
        
    return $prefix . $table . '_' . $timestamp;
}

function GetTempProcName($proc = '', $temporary = true)
{
    // A temporary stored procedure name with the '#' prefix will be 
    // automatically dropped once the connection is closed. Otherwise, 
    // the caller should take care of dropping the temp procedure afterwards.    
    
    $timestamp = round(microtime(true)*1000);

    $prefix = '';
    if ($temporary)
        $prefix = '#';
        
    if (strlen($proc) == 0)
        $proc = 'php_test_proc'; 

    return $prefix . $proc . '_' . $timestamp;
}

function PDOConnect($className, $serverName, $user, $pwd, $exitMode)
{
    require  'MsSetup.inc';
    $conn = null;
    
    try
    {
        // simply use $databaseName from MsSetup.inc to facilitate testing in Azure,  
        // which does not support switching databases
        $conn = new $className("sqlsrv:Server=$serverName;Database=$databaseName", $user, $pwd, $connectionOptions);
        $conn->setAttribute(PDO::SQLSRV_ATTR_ENCODING, PDO::SQLSRV_ENCODING_SYSTEM);
    }
    catch (PDOException $e)
    {
        $conn = null;
        TraceEx("\nFailed to connect to $serverName: ".$e->getMessage(), $exitMode);
    }

        return ($conn);
}


function ExecuteQuery($conn, $tsql)
{
    $stmt = null;

    if (IsPdoMode())
    {   // PDO
        try
        {
            $stmt = $conn->query($tsql);
        }
        catch (PDOException $e)
        {
            $stmt = null;
            FatalError("Query execution failed for $tsql: ".$e->getMessage());
        }
    }
    else
    {   // PHP
        $stmt = sqlsrv_query($conn, $tsql);
        if ($stmt === false)
        {
            FatalError("Query execution failed for $tsql");
        }
    }
    return ($stmt);
}


function PrepareQuery($conn, $tsql)
{
    $stmt = null;

    if (IsPdoMode())
    {   // PDO
        try
        {
            $stmt = $conn->prepare($tsql);
        }
        catch (PDOException $e)
        {
            $stmt = null;
            FatalError("Query preparation failed for $tsql: ".$e->getMessage());
        }
    }
    else
    {   // PHP
        $stmt = sqlsrv_prepare($conn, $tsql);
        if ($stmt === false)
        {
            FatalError("Query preparation failed for $tsql");
        }
    }

    return ($stmt);
}


function ExecuteQueryEx($conn, $tsql, $modeDirect)
{
    $stmt = null;

    if ($modeDirect)
    {   // direct execution
        if (IsPdoMode())
        {   // PDO
            try
            {
                $stmt = $conn->query($tsql);
            }
            catch (PDOException $e)
            {
                $stmt = null;
            }
        }
        else
        {   // PHP
            $stmt = sqlsrv_query($conn, $tsql);
        }
    }
    else
    {
        $stmt = PrepareQuery($conn, $tsql);
        if (IsPdoMode())
        {
            $stmt->execute();
        }
        else
        {
            sqlsrv_execute($stmt);
        }
    }

    return ($stmt);
}


function GetSqlType($k)
{
    switch ($k)
    {
        case 1:     return ("int");
        case 2:     return ("tinyint");
        case 3:     return ("smallint");
        case 4:     return ("bigint");
        case 5:     return ("bit");
        case 6:     return ("float");
        case 7:     return ("real");
        case 8:     return ("decimal(28,4)");
        case 9:     return ("numeric(32,4)");
        case 10:    return ("money");
        case 11:    return ("smallmoney");
        case 12:    return ("char(512)");
        case 13:    return ("varchar(512)");
        case 14:    return ("varchar(max)");
        case 15:    return ("nchar(512)");
        case 16:    return ("nvarchar(512)");
        case 17:    return ("nvarchar(max)");
        case 18:    return ("text");
        case 19:    return ("ntext");
        case 20:    return ("binary(512)");
        case 21:    return ("varbinary(512)");
        case 22:    return ("varbinary(max)");
        case 23:    return ("image");
        case 24:    return ("uniqueidentifier");
        case 25:    return ("datetime");
        case 26:    return ("smalldatetime");
        case 27:    return ("timestamp");
        case 28:    return ("xml");
        default:    break;
    }
    return ("udt");
}

function GetDriverType($k, $dataSize)
{
    switch ($k)
    {
        case 1:     return (SQLSRV_SQLTYPE_INT);
        case 2:     return (SQLSRV_SQLTYPE_TINYINT);
        case 3:     return (SQLSRV_SQLTYPE_SMALLINT);
        case 4:     return (SQLSRV_SQLTYPE_BIGINT);
        case 5:     return (SQLSRV_SQLTYPE_BIT);
        case 6:     return (SQLSRV_SQLTYPE_FLOAT);
        case 7:     return (SQLSRV_SQLTYPE_REAL);
        case 8:     return (SQLSRV_SQLTYPE_DECIMAL(28, 4));
        case 9:     return (SQLSRV_SQLTYPE_NUMERIC(32, 4));
        case 10:    return (SQLSRV_SQLTYPE_MONEY);
        case 11:    return (SQLSRV_SQLTYPE_SMALLMONEY);
        case 12:    return (SQLSRV_SQLTYPE_CHAR($dataSize));
        case 13:    return (SQLSRV_SQLTYPE_VARCHAR($dataSize));
        case 14:    return (SQLSRV_SQLTYPE_VARCHAR('max'));
        case 15:    return (SQLSRV_SQLTYPE_NCHAR($dataSize));
        case 16:    return (SQLSRV_SQLTYPE_NVARCHAR($dataSize));
        case 17:    return (SQLSRV_SQLTYPE_NVARCHAR('max'));
        case 18:    return (SQLSRV_SQLTYPE_TEXT);
        case 19:    return (SQLSRV_SQLTYPE_NTEXT);
        case 20:    return (SQLSRV_SQLTYPE_BINARY($dataSize));
        case 21:    return (SQLSRV_SQLTYPE_VARBINARY($dataSize));
        case 22:    return (SQLSRV_SQLTYPE_VARBINARY('max'));
        case 23:    return (SQLSRV_SQLTYPE_IMAGE);
        case 24:    return (SQLSRV_SQLTYPE_UNIQUEIDENTIFIER);
        case 25:    return (SQLSRV_SQLTYPE_DATETIME);
        case 26:    return (SQLSRV_SQLTYPE_SMALLDATETIME);
        case 27:    return (SQLSRV_SQLTYPE_TIMESTAMP);
        case 28:    return (SQLSRV_SQLTYPE_XML);
        default:    break;
    }
    return (SQLSRV_SQLTYPE_UDT);
}

function IsStreamable($k)
{
    switch ($k)
    {
        case 12:    return (true);  // nchar(512)
        case 13:    return (true);  // varchar(512) 
        case 14:    return (true);  // varchar(max) 
        case 15:    return (true);  // nchar(512) 
        case 16:    return (true);  // nvarchar(512) 
        case 17:    return (true);  // nvarchar(max) 
        case 18:    return (true);  // text
        case 19:    return (true);  // ntext
        case 20:    return (true);  // binary
        case 21:    return (true);  // varbinary(512)
        case 22:    return (true);  // varbinary(max)
        case 23:    return (true);  // image
        case 28:    return (true);  // xml
        default:    break;
    }
    return (false);
}

function IsNumeric($k)
{
    switch ($k)
    {
        case 1:     return (true);  // int
        case 2:     return (true);  // tinyint
        case 3:     return (true);  // smallint
        case 4:     return (true);  // bigint
        case 5:     return (true);  // bit
        case 6:     return (true);  // float
        case 7:     return (true);  // real
        case 8:     return (true);  // decimal(28,4)
        case 9:     return (true);  // numeric(32,4)
        case 10:    return (true);  // money
        case 11:    return (true);  // smallmoney
        default:    break;
    }
    return (false);
}

function IsChar($k)
{
    switch ($k)
    {
        case 12:    return (true);  // nchar(512)
        case 13:    return (true);  // varchar(512) 
        case 14:    return (true);  // varchar(max) 
        case 15:    return (true);  // nchar(512) 
        case 16:    return (true);  // nvarchar(512) 
        case 17:    return (true);  // nvarchar(max) 
        case 18:    return (true);  // text
        case 19:    return (true);  // ntext
        case 28:    return (true);  // xml
        default:    break;
    }
    return (false);
}

function IsBinary($k)
{
    switch ($k)
    {
        case 20:    return (true);  // binary
        case 21:    return (true);  // varbinary(512)
        case 22:    return (true);  // varbinary(max)
        case 23:    return (true);  // image
        default:    break;
    }
    return (false);
}

function IsDateTime($k)
{
    switch ($k)
    {
        case 25:    return (true);  // datetime
        case 26:    return (true);  // smalldatetime
        case 27:    return (true);  // timestamp
        default:    break;
    }
    return (false);
}

function IsUnicode($k)
{
    switch ($k)
    {
        case 15:    return (true);  // nchar(512) 
        case 16:    return (true);  // nvarchar(512) 
        case 17:    return (true);  // nvarchar(max) 
        case 19:    return (true);  // ntext
        default:    break;
    }
    return (false);
}

function IsUpdatable($k)
{
    switch ($k)
    {
        case 27:    return (false); // timestamp
        default:    break;
    }
    return (true);
}

function IsLiteral($k)
{
    switch ($k)
    {
        case 12:    return (true);  // nchar(512)
        case 13:    return (true);  // varchar(512) 
        case 14:    return (true);  // varchar(max) 
        case 15:    return (true);  // nchar(512) 
        case 16:    return (true);  // nvarchar(512) 
        case 17:    return (true);  // nvarchar(max) 
        case 18:    return (true);  // text
        case 19:    return (true);  // ntext
        case 24:    return (true);  // uniqueidentifier
        case 25:    return (true);  // datetime
        case 26:    return (true);  // smalldatetime
        case 28:    return (true);  // xml
        default:    break;
    }
    return (false);
}

function GetMetadata($k, $info)
{
    if (strcasecmp($info, 'Name') == 0)
    {
        return (getColName($k));
    }
    if (strcasecmp($info, 'Size') == 0)
    {
        return (getColSize($k));
    }
    if (strcasecmp($info, 'Precision') == 0)
    {
        return (getColPrecision($k));
    }
    if (strcasecmp($info, 'Scale') == 0)
    {
        return (getColScale($k));
    }
    if (strcasecmp($info, 'Nullable') == 0)
    {
        return (getColNullable($k));
    }
    return ("");
}

function GetColName($k)
{
    switch ($k)
    {
        case 1:     return ("c1_int");
        case 2:     return ("c2_tinyint");
        case 3:     return ("c3_smallint");
        case 4:     return ("c4_bigint");
        case 5:     return ("c5_bit");
        case 6:     return ("c6_float");
        case 7:     return ("c7_real");
        case 8:     return ("c8_decimal");
        case 9:     return ("c9_numeric");
        case 10:    return ("c10_money");
        case 11:    return ("c11_smallmoney");
        case 12:    return ("c12_char");
        case 13:    return ("c13_varchar");
        case 14:    return ("c14_varchar_max");
        case 15:    return ("c15_nchar");
        case 16:    return ("c16_nvarchar");
        case 17:    return ("c17_nvarchar_max");
        case 18:    return ("c18_text");
        case 19:    return ("c19_ntext");
        case 20:    return ("c20_binary");
        case 21:    return ("c21_varbinary");
        case 22:    return ("c22_varbinary_max");
        case 23:    return ("c23_image");
        case 24:    return ("c24_uniqueidentifier");
        case 25:    return ("c25_datetime");
        case 26:    return ("c26_smalldatetime");
        case 27:    return ("c27_timestamp");
        case 28:    return ("c28_xml");
        default:    break;
    }
    return ("");
}


function GetColSize($k)
{
    switch ($k)
    {
        case 12:    return ("512");
        case 13:    return ("512");
        case 14:    return ("0");
        case 15:    return ("512");
        case 16:    return ("512");
        case 17:    return ("0");
        case 18:    return ("2147483647");
        case 19:    return ("1073741823");
        case 20:    return ("512");
        case 21:    return ("512");
        case 22:    return ("0)");
        case 23:    return ("2147483647");
        case 24:    return ("36");
        //case 25:  return ("23");
        //case 26:  return ("16");
        case 27:    return ("8");
        case 28:    return ("0");
        default:    break;
    }
    return ("");
}

function GetColPrecision($k)
{
    switch ($k)
    {
        case 1:     return ("10");
        case 2:     return ("3");
        case 3:     return ("5");
        case 4:     return ("19");
        case 5:     return ("1");
        case 6:     return ("53");
        case 7:     return ("24");
        case 8:     return ("28");
        case 9:     return ("32");
        case 10:    return ("19");
        case 11:    return ("10");
        case 25:    return ("23");
        case 26:    return ("16");
        default:    break;
    }
    return ("");
}

function GetColScale($k)
{
    switch ($k)
    {
        case 8:     return ("4");
        case 9:     return ("4");
        case 10:    return ("4");
        case 11:    return ("4");
        case 25:    return ("3");
        case 26:    return ("0");
        default:    break;
    }
    return ("");
}

function GetColNullable($k)
{
    return (IsUpdatable($k) ? "1" : "0");
}

function GetSampleData($k)
{
    switch ($k)
    {
        case 1: // int
            return ("123456789");

        case 2: // tinyint
            return ("234");

        case 3: // smallint
            return ("5678");
    
        case 4: // bigint
            return ("123456789987654321");


        case 5: // bit
            return ("1");

        case 6: // float
            return ("123.456");

        case 7: // real
            return ("789.012");

        case 8: // decimal
            return ("12.34");

        case 9: // numeric
            return ("567.89");

        case 10:// money
            return ("321.54");

        case 11:// smallmoney
            return ("67.89");

        case 12:// char
        case 15:// nchar
            return ("The quick brown fox jumps over the lazy dog");

        case 13:// varchar
        case 16:// nvarchar
            return ("The quick brown fox jumps over the lazy dog 9876543210");

        case 14:// varchar(max)
        case 17:// nvarchar(max)
            return ("The quick brown fox jumps over the lazy dog 0123456789");

        case 18:// text
        case 19:// ntext
            return ("0123456789 The quick brown fox jumps over the lazy dog");

        case 20:// binary
            return ("0123456789");

        case 21:// varbinary
            return ("01234567899876543210");

        case 22:// varbinary(max)
            return ("98765432100123456789");

        case 23:// image
            return ("01234567899876543210");

        case 24:// uniqueidentifier
            return ("12345678-9012-3456-7890-123456789012");

        case 25:// datetime
        case 26:// smalldatetime
            return (date("Y-m-d"));

        case 27:// timestamp
            return (null);

        case 28:// xml
            return ("<XmlTestData><Letters1>The quick brown fox jumps over the lazy dog</Letters1><Digits1>0123456789</Digits1></XmlTestData>");

        default:
            break;
    }

    return (null);
}


function CreateDB($conn, $dbName)
{
    Trace("Creating database $dbName ...");
    $tsql = "CREATE DATABASE [$dbName]";
    DropDB($conn, $dbName);

    if (IsPdoMode())
    {
        $outcome = $conn->exec($tsql);
        if ($outcome === false)
        {
            FatalError("Failed to create test database: $dbName");
        }
    }
    else
    {
        $stmt = sqlsrv_query($conn, $tsql);
        if ($stmt === false)
        {
            FatalError("Failed to create test database: $dbName");
        }
        sqlsrv_free_stmt($stmt);
    }
    Trace(" completed successfully.\n");
}

function DropDB($conn, $dbName)
{
    $tsql = "DROP DATABASE [$dbName]";
    if (IsPdoMode())
    {
        $mode = $conn->getAttribute(PDO::ATTR_ERRMODE);

        $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);

        $outcome = $conn->exec($tsql);
        $conn->setAttribute(PDO::ATTR_ERRMODE, $mode);

    }
    else
    {
        $stmt = sqlsrv_query($conn, $tsql);
        if ($stmt === false)
        {
        }
        else
        {
            sqlsrv_free_stmt($stmt);
        }
    }
}


function CreateTable($conn, $tableName)
{
    $dataType = "[c1_int] int, [c2_tinyint] tinyint, [c3_smallint] smallint, [c4_bigint] bigint, [c5_bit] bit, [c6_float] float, [c7_real] real, [c8_decimal] decimal(28,4), [c9_numeric] numeric(32,4), [c10_money] money, [c11_smallmoney] smallmoney, [c12_char] char(512), [c13_varchar] varchar(512), [c14_varchar_max] varchar(max), [c15_nchar] nchar(512), [c16_nvarchar] nvarchar(512), [c17_nvarchar_max] nvarchar(max), [c18_text] text, [c19_ntext] ntext, [c20_binary] binary(512), [c21_varbinary] varbinary(512), [c22_varbinary_max] varbinary(max), [c23_image] image, [c24_uniqueidentifier] uniqueidentifier, [c25_datetime] datetime, [c26_smalldatetime] smalldatetime, [c27_timestamp] timestamp, [c28_xml] xml";
    CreateTableEx($conn, $tableName, $dataType);
    if (IsDaasMode())
    {
        $colIndex = "[c1_int], [c2_tinyint], [c3_smallint], [c4_bigint], [c5_bit], [c6_float], [c7_real], [c8_decimal], [c9_numeric]";
        CreateTableIndex($conn, $tableName, $colIndex);
    }
}

function CreateTableEx($conn, $tableName, $dataType)
{
    Trace("Creating table $tableName ...");
    $tsql = "CREATE TABLE [$tableName] ($dataType)";
    DropTable($conn,$tableName);

    if (IsPdoMode())
    {   
        $outcome = $conn->exec($tsql);
        if ($outcome === false)
        {
            FatalError("Failed to create test table: $tsql");
        }
    }
    else
    {
        $stmt = sqlsrv_query($conn, $tsql);
        if ($stmt === false)
        {
            FatalError("Failed to create test table: $tsql");
        }
        sqlsrv_free_stmt($stmt);
    }
    Trace(" completed successfully.\n");
}


function CreateTableIndex($conn, $tableName, $colIndex)
{
    require  'MsSetup.inc';
    CreateTableIndexEx($conn, $tableName, $tableIndex, $colIndex);
}


function CreateTableIndexEx($conn, $tableName, $tableIndex, $colIndex)
{
    Trace("Creating table index for $tableName ...");
    $sqlIndex = "CREATE CLUSTERED INDEX [$tableIndex] ON [$tableName]($colIndex)";
    if (IsPdoMode())
    {
        $outcome = $conn->exec($sqlIndex);
        if ($outcome === false)
        {
            FatalError("Failed to create clustered index for test table: $sqlIndex");
        }
    }
    else
    {
        $stmt = sqlsrv_query($conn, $sqlIndex);
        if ($stmt === false)
        {
            FatalError("Failed to create clustered index for test table: $sqlIndex");
        }
        sqlsrv_free_stmt($stmt);
    }
    Trace(" completed successfully.\n");
}

function CreateUniqueIndex($conn, $tableName, $colIndex)
{
    require  'MsSetup.inc';
    CreateUniqueIndexEx($conn, $tableName, $tableIndex, $colIndex);
}

function CreateUniqueIndexEx($conn, $tableName, $tableIndex, $colIndex)
{
    Trace("Creating unique table index for $tableName ...");
    $sqlIndex = "CREATE UNIQUE INDEX [$tableIndex] ON [$tableName]($colIndex)";
    if (IsPdoMode())
    {
        $outcome = $conn->exec($sqlIndex);
        if ($outcome === false)
        {
            FatalError("Failed to create unique index for test table: $sqlIndex");
        }
    }
    else
    {
        $stmt = sqlsrv_query($conn, $sqlIndex);
        if ($stmt === false)
        {
            FatalError("Failed to create unique index for test table: $sqlIndex");
        }
        sqlsrv_free_stmt($stmt);
    }
    Trace(" completed successfully.\n");
}

function DropTable($conn, $tableName)
{
    $tsql = "IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'" . $tableName . "') AND type in (N'U')) DROP TABLE $tableName";
    if (IsPdoMode())
    {
        $mode = $conn->getAttribute(PDO::ATTR_ERRMODE);

        $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);

        $outcome = $conn->exec($tsql);
        $conn->setAttribute(PDO::ATTR_ERRMODE, $mode);

    }
    else
    {
        $stmt = sqlsrv_query($conn, $tsql);
        if ($stmt === false)
        {
        }
        else
        {
            sqlsrv_free_stmt($stmt);
        }
    }
}


function SelectFromTable($conn, $tableName)
{
    return (SelectFromTableEx($conn, $tableName, null));
}

function SelectFromTableEx($conn, $tableName, $cond)
{
    if (($cond != null) && (strlen($cond) > 0))
    {
        return (SelectQuery($conn, "SELECT * FROM [$tableName] WHERE $cond"));
    }
    else
    {
        return (SelectQuery($conn, "SELECT * FROM [$tableName]"));
    }
}

function SelectQuery($conn, $query)
{
    return (SelectQueryEx($conn, $query, null));
}

function SelectQueryEx($conn, $query, $options)
{
    $numFields = 0;
    if (IsPDOMode())
    {
        $stmt = ExecuteQuery($conn, $query);
        $numFields = $stmt->columnCount();
    }
    else
    {
        if ($options != null)
        {
            $stmt = sqlsrv_query($conn, $query, null, $options);
        }
        else
        {
            $stmt = sqlsrv_query($conn, $query);
        }
        if ($stmt === false)
        {
            FatalError("Failed to query test table");
        }   

        $numFields = sqlsrv_num_fields($stmt);
    }
    if ($numFields <= 0)
    {
        die("Unexpected number of fields: .$numFields");
    }
    return ($stmt);
}

function RowCount($stmt)
{
    $rowCount = 0;
    if (IsPdoMode())
    {
        while ($stmt->fetchColumn())
        {
            $rowCount++;
        }
    }
    else
    {
        while (sqlsrv_fetch($stmt))
        {
            $rowCount++;
        }
    }
    return ($rowCount);
}


function NumRows($conn, $tableName)
{
    $stmt = SelectFromTable($conn, $tableName);
    $rowCount = RowCount($stmt);
    if (IsPdoMode())
    {
        $stmt = null;
    }
    else
    {
        sqlsrv_free_stmt($stmt);
    }

    return ($rowCount);
}


function InsertQuery($tableName)
{
    include_once 'MsData_UTF8.inc';
    return (InsertQueryExUTF8($tableName, rand(1, 20)));
}

function InsertRows($conn, $tableName, $rowCount)
{
    Trace("Inserting $rowCount rows into $tableName ...");
    $count = 0;
    for($i = 0; $i < $rowCount; $i++)
    {
        if (InsertRow($conn, $tableName))
        {
            $count++;
        }
    }
    Trace(" completed successfully.\n");
    if ($count != $rowCount)
    {
        die("$count rows inserted instead of $rowCount\n"); 
    }
    return ($count);
}

function InsertRowsByRange($conn, $tableName, $minIndex, $maxIndex)
{
    $rowCount = $maxIndex - $minIndex + 1;
    if ($rowCount > 0)
    {
        Trace("Inserting $rowCount rows into $tableName ...");
        for($i = $minIndex; $i <= $maxIndex; $i++)
        {
            InsertRowByIndex($conn, $tableName, $i);
        }
        Trace(" completed successfully.\n");
    } 
}

function InsertRow($conn, $tableName)
{
    $tsql = InsertQuery($tableName);
    $stmt = null;

    if (IsPdoMode())
    {
        $stmt = $conn->exec($tsql);
    }
    else
    {
        $stmt = sqlsrv_query($conn, $tsql);
    }
    return (InsertCheck($stmt));
}

function InsertRowEx($conn, $tableName, $dataCols, $dataValues, $dataOptions)
{
    $tsql = "INSERT INTO [$tableName] ($dataCols) VALUES ($dataValues)";
    $stmt = null;

    if (IsPdoMode())
    {
        $stmt = $conn->exec($tsql);
    }
    else
    {
        $stmt = sqlsrv_query($conn, $tsql, $dataOptions);
    }
    return (InsertCheck($stmt));
}

function InsertRowByIndex($conn, $tableName, $index)
{
    $tsql = InsertQueryEx($tableName, $index);
    $stmt = null;

    if (IsPdoMode())
    {
        $stmt = $conn->exec($tsql);
    }
    else
    {
        $stmt = sqlsrv_query($conn, $tsql);
    }
    return (InsertCheck($stmt));
}

function InsertStream($conn, $tableName, $dataCols, $dataValues, $dataOptions, $atExec)
{
    $tsql = "INSERT INTO [$tableName] ($dataCols) VALUES ($dataValues)";
    $stmt = null;

    if (IsPdoMode())
    {
        $stmt = $conn->exec($tsql);
    }
    else
    {
        if ($atExec)
        {
            $stmt = sqlsrv_query($conn, $tsql, $dataOptions, array('SendStreamParamsAtExec' => 1));
        }
        else
        {
            $stmt = sqlsrv_query($conn, $tsql, $dataOptions);
            if ($stmt)
            {
                while (sqlsrv_send_stream_data($stmt))
                {
                }
            }
        }
    }

    return (InsertCheck($stmt));
}


function InsertCheck($stmt)
{
    $numRows = 0;

    if ($stmt === false)
    {
        FatalError("Failed to insert row into test table");
    }
    if (IsPdoMode())
    {
        $numRows = $stmt;
    }
    else
    {
        $numRows = sqlsrv_rows_affected($stmt);
        sqlsrv_free_stmt($stmt);
    }
    if ($numRows != 1)
    {
        die("Unexpected row count at insert: ".$numRows);
    }
    return (true);
}

function GetInsertData($rowIndex, $colIndex, $skip)
{
    $query = InsertQueryEx("TestTable", $rowIndex);
    $data = strstr($query, "((");
    $pos = 1;
    if ($data === false)
    {
        die("Failed to retrieve data on row $rowIndex");
    }
    $data = substr($data, 2);

    while ($pos < ($colIndex - $skip))
    {
        $data = strstr($data, ", (");
        $pos++;
        if ($data === false)
        {
            die("Failed to retrieve data on row $rowIndex, column $pos");
        }
        $data = substr($data, 3);
    }
    $pos = strpos($data, ")");
    if ($pos === false)
    {
        die("Failed to isolate data on row $rowIndex, column $pos");
    }
    $data = substr($data, 0, $pos);
    if (strcasecmp($data, "null") == 0)
    {
        $data = "";
    }
    if (IsUnicode($colIndex))
    {   // N'data'
        $data = substr($data, 2, strlen($data) - 3);
    }
    else if (IsLiteral($colIndex))
    {   // 'data'
        $data = substr($data, 1, strlen($data) - 2);
    }
    else if (IsBinary($colIndex))
    {   // 0xdata
        $data = substr($data, 2);
    }
    return (trim($data));
}

function CreateProc($conn, $procName, $procArgs, $procCode)
{
    DropProc($conn,$procName);

    if (!IsPdoMode())
    {
        $stmt = sqlsrv_query($conn, "CREATE PROC [$procName] ($procArgs) AS BEGIN $procCode END");
        if ($stmt === false)
            FatalError("Failed to create test procedure");
        sqlsrv_free_stmt($stmt);
    }
    else
    {
        $stmt = $conn->query("CREATE PROC [$procName] ($procArgs) AS BEGIN $procCode END");
    }
}

function DropProc($conn, $procName)
{
    if (!IsPdoMode())
    {
        $stmt = sqlsrv_query($conn, "DROP PROC [$procName]");
        sqlsrv_free_stmt($stmt);
    }
    else
    {
    
        $query = "IF OBJECT_ID('[$procName]', 'P') IS NOT NULL DROP PROCEDURE [$procName]";
        $stmt = $conn->query($query);
    }
}

function CallProc($conn, $procName, $procArgs, $procValues)
{
    $stmt = CallProcEx($conn, $procName, "", $procArgs, $procValues);
    sqlsrv_free_stmt($stmt);
}

function CallProcEx($conn, $procName, $procPrefix, $procArgs, $procValues)
{
    $stmt = sqlsrv_query($conn, "{ $procPrefix CALL [$procName] ($procArgs)}", $procValues);
    if ($stmt === false)
    {
        FatalError("Failed to call test procedure");
    }
    return ($stmt);
}


function CreateFunc($conn, $funcName, $funcArgs, $retType, $funcCode)
{
    DropFunc($conn,$funcName);
    $stmt = sqlsrv_query($conn, "CREATE FUNCTION [$funcName] ($funcArgs) RETURNS $retType AS BEGIN $funcCode END");
    if ($stmt === false)
    {
        FatalError("Failed to create test function");
    }
    sqlsrv_free_stmt($stmt);
}

function DropFunc($conn, $funcName)
{
    $stmt = sqlsrv_query($conn, "DROP FUNCTION [$funcName]");
    if ($stmt === false)
    {
    }
    else
    {
        sqlsrv_free_stmt($stmt);
    }
}


function CallFunc($conn, $funcName, $funcArgs, $funcValues)
{
    $stmt = sqlsrv_query($conn, "{ ? = CALL [$funcName]($funcArgs)}", $funcValues);
    if ($stmt === false)
    {
        FatalError("Failed to call test function");
    }
    sqlsrv_free_stmt($stmt);
}

function handle_errors()
{
    $errors = sqlsrv_errors(SQLSRV_ERR_ERRORS);
    $count = count($errors);
    if($count == 0)
    {
        $errors = sqlsrv_errors(SQLSRV_ERR_ALL);
        $count = count($errors);
    }
    if($count > 0)
    {
        for($i = 0; $i < $count; $i++)
        {
            Trace($errors[$i]['message']."\n");
        }
    }
}

function str2hex($dataIn)
{
    $dataOut = "";
    $len = strlen($dataIn);
    for ($i = 0; $i < $len; $i++)
    {
        $ch = strtoupper(substr($dataIn, $i, 1));
        if ($ch == "A")
        {
            $dataOut = $dataOut."41";
        }
        else if ($ch == "B")
        {
            $dataOut = $dataOut."42";
        }
        else if ($ch == "C")
        {
            $dataOut = $dataOut."43";
        }
        else if ($ch == "D")
        {
            $dataOut = $dataOut."44";
        }
        else if ($ch == "E")
        {
            $dataOut = $dataOut."45";
        }
        else if ($ch == "F")
        {
            $dataOut = $dataOut."46";
        }
        else
        {
            $dataOut = $dataOut."3".$ch;
        }

    }
    return ($dataOut);
}

function PhpVersionComponents( &$major, &$minor, &$sub )
{
    $str_version = phpversion();

    $major = strtok( $str_version, "." );
    $minor = strtok( "." );
    $sub = strtok( "." );
}


?>