通过PHP将查询结果导出为CSV

$query = "SELECT * FROM table_name";

$export = mysql_query ($query ) or die ( "Sql error : " . mysql_error( ) );

$fields = mysql_num_fields ( $export );

for ( $i = 0; $i < $fields; $i++ )
{
    $header .= mysql_field_name( $export,$i ) . "t";
}

while( $row = mysql_fetch_row( $export ) )
{
    $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(0) Records Found!n";                        
}

header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=your_desired_name.xls");
header("Pragma: no-cache");
header("Expires: 0");
print "$headern$data";