Check Custom Field In Register

[geobest]

Hi,

I'm really new to PHP .

I have create one new field (field5) for user profile and i want to check that field into other database during registration .

I create a new function (functions_qtek.php)
The function for check is :

<?php
error_reporting(E_ALL & ~E_NOTICE); 

function check_QtekIMEI($imeiID) 
{ 

   $QtekDBLink = mysql_connect( "myhost", "dbname", "dbpass" ); 
   if ( ! $QtekDBLink ) { 
      die ( "Couldn't connect to Qtek DataBase : ".mysqlerror() ); 
   } 

   mysql_select_db( "dbname", $QtekDBLink ) 
      or die ( "Couldn't connect to Qtek DataBase : ".mysqlerror() ); 

   $result = mysql_query ( "SELECT imei FROM imeis WHERE imei = '$imeiID' " ); 
   $num_rows = mysql_num_rows( $result ); 


   $i=0; 
   while ($i < $num_rows) { 
      $NameExists = mysql_result ( $result, $i, "imei" ); 
      $i++; 
   } 
    mysql_close( $QtekDBLink ); 
     
    if ($NameExists != ""){ 
       return true; 
    }else{ 
       return false; 
    } 
     
} 

?>

also i create that code to put in class_dm_user.php

			// Custom check for IMEI
			require_once(DIR . '/includes/functions_qtek.php'); 
			if ( $varname == 'field5' )
			{
				if ( check_QtekIMEI($value) )
				{ 
					$this->error('required_field_x_invalid', $profilefield['title']);
				}
			}

and i put code after

			// check for empty required fields
			if ($profilefield['required'] == 1 AND $value === false AND $verify)
			{
				$this->error('required_field_x_missing_or_invalid', $profilefield['title']);
			}

the last one work !!!!

The problem is with the first (functions_qtek.php)
no erro messages but also no data !!!!

Thanks in Advance
Geobest