我们如何在PHP中实现嵌套while循环


How do we implement nested while loop in PHP?

有人能帮助我如何在PHP中实现嵌套while循环吗?

请举几个例子,我们将不胜感激。我在内部遇到问题,同时:

while ($record = db_fetch_object($username)) 
{ 
   $userArray[] = $record->uid;   //print "waheed----";
   while($recordfile = db_fetch_Object($userfile))
   {
    print "waheed";
    $userArray [$record->uid][] = $recordfile->fid;        
   }  
}
while($condition1)
{
    while($condition2)
    {
        // statements
    }
}

编辑

我想这就是AAMIR的while循环的问题:

$recordfile=db_fetch_Object($userfile)

单词object的大小写为"O"。让它变小。