MYSQL vers EXCEL

<?php
function export_excel_csv()
{
    $conn = mysql_connect("legtux.org","root","mdp");
    $db = mysql_select_db("localhost",$conn);
    
    $sql = "SELECT * FROM table";
    $rec = mysql_query($sql) or die (mysql_error());
    
    $num_fields = mysql_num_fields($rec);
    
    for($i = 0; $i < $num_fields; $i++ )
    {
        $header .= mysql_field_name($rec,$i)."\t";
    }
    
    while($row = mysql_fetch_row($rec))
    {
        $line = '';
        foreach($row as $value)
        {                                            
            if((!isset($value)) || ($value == ""))
            {
                $value = "\t";
            }
            else
            {
                $value = str_replace( '"' , '""' , $value );
                $value = '"' . $value . '"' . "\t";
            }
            $line .= $value;
        }
        $data .= trim( $line ) . "\n";
    }
    
    $data = str_replace("\r" , "" , $data);
    
    if ($data == "")
    {
        $data = "\n No Record Found!n";                        
    }
    
    header("Content-type: application/octet-stream");
    header("Content-Disposition: attachment; filename=reports.xls");
    header("Pragma: no-cache");
    header("Expires: 0");
    print "$header\n$data";
}
?>

<?php
$host = 'localhost';
$user = 'root';
$pass = '';
$db = 'test';
$table = 'infos';
$file = 'export';

$link = mysql_connect($host, $user, $pass) or die("Can not connect." . mysql_error());
mysql_select_db($db) or die("Can not connect.");

$result = mysql_query("SHOW COLUMNS FROM ".$table."");
$i = 0;
if (mysql_num_rows($result) > 0) {
while ($row = mysql_fetch_assoc($result)) {
$csv_output .= $row['Field']."; ";
$i++;
}
}
$csv_output .= "\n";

$values = mysql_query("SELECT * FROM ".$table."");
while ($rowr = mysql_fetch_row($values)) {
for ($j=0;$j<$i;$j++) {
$csv_output .= $rowr[$j]."; ";
}
$csv_output .= "\n";
}

$filename = $file."_".date("Y-m-d_H-i",time());
header("Content-type: application/vnd.ms-excel");
header("Content-disposition: csv" . date("Y-m-d") . ".csv");
header( "Content-disposition: filename=".$filename.".csv");
print $csv_output;
exit;
?>