<?php 
 
  function check_if_products_id_exist($products_id)
 
  {
 
    if($products_id=="")
 
    {
 
      return false;
 
    }
 
    
 
    require('shopping_cart_DBVar.php');
 
    
 
    if($connection_method == "mysql")
 
    {
 
      $my_sql=new hippo_sql_query($connection_method,$host,$dbName1,$dbUser,$dbPass,$dbPort);
 
      $sql_stmt = "SELECT COUNT(*) AS num_rows FROM ".$dbTable1." WHERE f_products_id='".$products_id."'";
 
      $res = $my_sql->query_exec($sql_stmt,"4");
 
      $row = $res[0]['num_rows'];
 
      
 
      // $row should be 1 or products_id will duplicate
 
      if($row>0){return true;}else{return false;}
 
      
 
    } // End if($connection_method == "mysql")
 
    
 
    return false;
 
  }
 
  
 
  function check_if_user_exist($MemId, $Email)
 
  {
 
    if($MemId=="" || $Email=="")
 
    {
 
      return false;
 
    }
 
    
 
    require('shopping_cart_DBVar.php');
 
    
 
    if($connection_method == "mysql")
 
    {
 
      $my_sql=new hippo_sql_query($connection_method,$host,$dbName1,$dbUser,$dbPass,$dbPort);
 
      $sql_stmt = "SELECT COUNT(*) AS num_rows FROM ".$dbTable2." WHERE f_customer_id='".$MemId."' AND f_email='".$Email."'";
 
      $res = $my_sql->query_exec($sql_stmt,"4");
 
      $row = $res[0]['num_rows'];
 
      
 
      // $row should be 1 or products_id will be duplicated
 
      if($row>0){return true;}else{return false;}
 
    } // End if($connection_method == "mysql")
 
    
 
    return false;
 
  }
 
  
 
?>
 
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