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为什么mysql_fetch_array/assoc + foreach只能遍历一条记录

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Release: 2016-06-23 14:25:11
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mysql_fetch_array  foreach

foreach(mysql_fetch_array($result) as $key=>$row){												 	print_r($row);													} 
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这样只能遍历输出最后一条记录

下面这样就能全部遍历,是不是说明数据库返回的数组与平常的不同?

while($row=mysql_fetch_array($result)) {        $rows[]  = $row; } foreach($rows as $k => $v) {    foreach($v as $vv){     echo $vv;   }
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回复讨论(解决方案)

while 可以循环读取数据库中的记录,而foreach 只能遍历已存在的数组或者对象。

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