php父类与子类读取数据代码是一填二级分类的程序代码,该程序可以根据父的数据查找出其子类的数据,代码如下:
<?php function getsubcomments($parent = 0, $level = 0) { $db = & jfactory::getdbo(); $sql = "..."; // 查询记录的sql $db->setquery($sql); $rows = $db->loadobjectlist(); $list = array(); // 先从数据得到记录集,再对记录添加level, 父层level = 0,它的下级level = 1,如此类推 foreach ($rows as $row) { $row->level = $level; $list[] = $row; $tmparr = getsubcomments($row->id, $level + 1); // 递归调用 if (count($tmparr)) { foreach ($tmparr as $tmprow) { $list[] = $tmprow; } } } return $list; } $list = array(); foreach ($tmplist as $row) { $row->level = 0; $list[] = $row; $tmplist2 = getsubcomments($row->id, 1); foreach ($tmplist2 as $row2) { $list[] = $row2; } } // 按level分层次输出内容 if ($row->level) { $pre = ''; for ($n = 0; $n < $row->level; $n++) $pre.= '----'; echo $pre . '|- '; } echo strip_tags($row->content);
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