今天遇到了phpweb商城模块发送的时候，电脑死机情况。 最终研究发现 是由于以下代码引起的：

  if ( $memberprice != "" && is_array( $memberprice ) )
  {
    while ( list( $key, $val ) = $key )   //  原来是  while ( list( $key, $val ) = key )  
    {
      $msql->query( "select id from {P}_shop_memberprice where `membertypeid`='{$key}' and `gid`='{$id}' limit 0,1" );
      if ( $msql->next_record( ) )
      {
        $fsql->query( "update {P}_shop_memberprice set `price`='{$val}' where `membertypeid`='{$key}' and `gid`='{$id}'" );
      }
      else
      {
        $fsql->query( "insert into {P}_shop_memberprice set `price`='{$val}',`membertypeid`='{$key}',`gid`='{$id}'" );
      }
    }
  }