รบกวนเรืองสอบถาม ปัญหาการ import จาก excel เข้า data baset หน่อยครับ

//==================Insert To user_job ====================================//
$sql = " INSERT INTO user_job (	
user_job	
, user_office
, user_job_position	
, user_email	
) VALUES (	
'$data1'	
, '$data2'	
, '$data3'	
) ";	
mysql_query($sql) or die(mysql_error()); 
//==================End Insert To user_job ====================================//

<?php
if ( $_FILES['file']['error'] ) {
die("upload error ");

}

//======Connect DB======================//  
$m_host = "localhost";
$m_user = "staff";
$m_pass = "itkmutnb";
$m_name = "alumni";

mysql_connect($m_host,$m_user,$m_pass); 
mysql_select_db($m_name);
mysql_query("SET NAMES UTF8");
//======End Connect DB======================//  

//======Get data from Excel======================//       

$dom    =    DOMDocument::load( $_FILES['file']['tmp_name'] );
$rows    =    $dom->getElementsByTagName( 'Row' );
$row    =    0;
foreach ($rows as $temp) {
$col = 0;
if($row==0) {
$row++; continue;
}
$cells    = $temp->getElementsByTagName('Cell');
foreach( $cells as $cell )  {
if($col==0) $data1 = $cell->nodeValue;
if($col==1) $data2 = $cell->nodeValue;
if($col==2) $data3 = $cell->nodeValue;
if($col==3) $data4 = $cell->nodeValue;
if($col==4) $data5 = $cell->nodeValue;
if($col==5) $data6 = $cell->nodeValue;
if($col==6) $data7 = $cell->nodeValue;
if($col==7) $data8 = $cell->nodeValue;
if($col==8) $data9 = $cell->nodeValue;
if($col==9) $data10 = $cell->nodeValue;
if($col==10) $data11 = $cell->nodeValue;
if($col==11) $data12 = $cell->nodeValue;
if($col==12) $data13 = $cell->nodeValue;
if($col==13) $data14 = $cell->nodeValue;
if($col==14) $data15 = $cell->nodeValue;
if($col==15) $data16 = $cell->nodeValue;
if($col==16) $data17 = $cell->nodeValue;
$col++;
}
//======End Get data from Excel======================//       

//==================Insert To user ====================================//
$sql = " INSERT INTO user (
user_aluid
, user_name
, user_surname
, user_name_en
, user_surname_en
, user_sex
, user_grad
, user_stu
, user_st
, user_address
) VALUES (
'$data1'
, '$data2'
, '$data3'
, '$data4'
, '$data5'
, '$data6'
, '$data7'
, '$data8'
, '$data9'
, '$data10'
) ";
mysql_query($sql) or die(mysql_error());
//==================End Insert To DB ====================================//

//==================Insert To user_contact ====================================//
$sql = " INSERT INTO user_contact (
user_aluid
, user_tel
, user_mobile 
, user_email  
) VALUES (
'$data11'
, '$data12'
, '$data13'
, '$data14'
) ";  
mysql_query($sql) or die(mysql_error());
//==================End Insert To user_contact ====================================//

//==================Insert To user_job ====================================//
$sql = " INSERT INTO user_job (
user_job   
, user_office
, user_job_position
, user_email   
) VALUES ( 
'$data15'   
, '$data16' 
, '$data17' 
) ";   
mysql_query($sql) or die(mysql_error());
//==================End Insert To user_job ====================================//
$row++; 
}
mysql_close();
?>