PHP导入excel后少了一条数据

PHP程序中导入excel表格少了一条数据，比如上传了8条，但是数据库里却只有7条，少了第一条数据，怎么解决呢

我把判断上传是否成功注释了，if ($_FILES ['file_stu'] != null) {
/* $tmp_file = $_FILES ['file_stu'] ['tmp_name'];

$file_Arrs = explode ( ".", $_FILES ['file_stu'] ['name'] );

$file_type = $file_Arrs [1];

// 判别是不是.xls文件，判别是不是excel文件
if (strtolower ( $file_type ) != "xls" && strtolower ( $file_type ) != "xlsx") {
    echo "<script>alert('不是Excel文件，请重新上传！');location.href='readExcel.php'</script>";
}

// 设置上传路径
$savePath = __DIR__ . "/upload/";

// 以时间来命名上传的文件
$file_name = $file_Arrs [0] . date ( '_Y-m-d H:i:s' ) . "." . $file_type;

// 是否上传成功

if (! move_uploaded_file ( $tmp_file, $savePath . $file_name )) {

    echo "<script>alert('上传失败！');location.href='readExcel.php'</script>";

}*/

// 设置以Excel5格式(Excel97-2003工作簿)
$reader = PHPExcel_IOFactory::createReader ( 'Excel5' );

$reader->setReadDataOnly ( true );

$cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;
$cacheSettings = array (
                ' memoryCacheSize ' => '1024MB' 
);
PHPExcel_Settings::setCacheStorageMethod ( $cacheMethod, $cacheSettings );
$PHPExcel = new PHPExcel ();

// 载入excel文件

// $PHPExcel = $reader->load ( $savePath . $file_name );
$PHPExcel = $reader->load ("D:/WWW/FX_ZKDZ_W/01_develop/yunmu7913/upload/111_2016-08-21 14:47:42.xlsx");
echo "

";print_r($PHPExcel);

    // 读取第一個工作表

$sheet = $PHPExcel->getSheet ( 0 );


echo "
";print_r($sheet);exit;

    // 取得总行数

    $highestRow = $sheet->getHighestRow ();

// 取得总列数
$highestColumm = $sheet->getHighestColumn ();
$datetime = date ( "Y-m-d H:i:s", time () );
$mysql->query ( "truncate orderdata" );

$sqlHead = "insert into `orderdata` values";
$sqlOther = "";
// 循环读取每个单元格的数据, 行数是以第1行开始
for($row = 3; $row <= $highestRow; $row ++) {

       $flag=0;
    foreach ($PHPExcel as $k=>$v){
            if($v['uid']==$flag){
                $flag=1;

            }

        }

    // 用户ID
    $uid = $sheet->getCell ( "B" . $row )->getValue ();

    // 总订单数
    $totalOrder = $sheet->getCell ( "C" . $row )->getValue ();
    // 未分配
    $notAllocated = $sheet->getCell ( "D" . $row )->getValue ();
    // 已下单
    $single = $sheet->getCell ( "E" . $row )->getValue ();
    // 取消
    $concle = $sheet->getCell ( "F" . $row )->getValue ();
    // 无效
    $invalid = $sheet->getCell ( "G" . $row )->getValue ();
    // 跟踪中
    $tracking = $sheet->getCell ( "H" . $row )->getValue ();
    // 已确认
    $confirmed = $sheet->getCell ( "I" . $row )->getValue ();
    // 待发货
    $toBeShipped = $sheet->getCell ( "J" . $row )->getValue ();
    // 已发货
    $delivered = $sheet->getCell ( "K" . $row )->getValue ();
    // 拒收
    $rejection = $sheet->getCell ( "L" . $row )->getValue ();
    // 已签收
    $hasBeenSigned = $sheet->getCell ( "M" . $row )->getValue ();
    // 已结算
    $settled = $sheet->getCell ( "N" . $row )->getValue ();

    if (!empty($uid) || $uid > 0) {
        $sqlOther = $sqlOther . "(null, {$uid}, {$totalOrder}, {$notAllocated}, {$single},
            {$concle}, {$invalid}, {$tracking}, {$confirmed}, {$toBeShipped}, {$delivered}, {$rejection}, {$hasBeenSigned}, {$settled}, '{$datetime}' )";
    }
    if ($row % 10 == 0 || $row == $highestRow) {
        $mysql->query ( $sqlHead . $sqlOther );
        $sqlOther = "";
    } else if (!empty($uid)) {
        $sqlOther = $sqlOther . ", ";
    }

}
echo "<script>alert('订单数据导入成功！');location.href='readExcel.php'</script>";


}

在存库之前dump一下数据 看是不是真的上传了8条数据 如果是8条的话看一下存库的时候是不是有什么条件