求高手解读一小段无限分类代码,,,
foreach ($rows as $id => $item)
{
if ($item['pid'])
{
$rows[$item['pid']][$item['id']] = &$rows[$item['id']]; //主要是这一部分，能详细说明下吗？
$t[] = $id;
}
}
$rows = array(<br /> 1 => array( 'id' => 1, 'pid' => 0 ),<br /> 2 => array( 'id' => 2, 'pid' => 1 ),<br /> 3 => array( 'id' => 3, 'pid' => 2 ),<br /> 4 => array( 'id' => 4, 'pid' => 3 ),<br /> );<br />
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