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原标题:While loop using zend and mysql

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我只需要从我的问答中抽出5个结果,我如何能够这样做? 我试图解释自己:

$var = $db->query($sql);
while($rows = $var->fetch()) {
$msg =  loop from 1 to 5 ;
}
return $this->view->msg = $msg;

希望你们能理解我的问题,我已经知道,判决不是正确写的,而是让自己理解。

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最佳回答

Maybe something like this might help get you on your way?

$var = $db->query($sql);
for($i = 0; $i<5; $i++) {
   $row = $var->fetch()) {
   $msg =  loop from 1 to 5 ;
}
return $this->view->msg = $msg;
问题回答

考虑在您的发言中使用<条码>LIMIT 5。 如果你告诉服务器,你只需要5个结果,那么情况就更糟。 否则的话,如果只有4个例外,你可能会陷入一个无效的例外。





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