PHP outputs content according to the hierarchical relationship between upper and lower levels_PHP tutorial

PHP outputs content according to the hierarchical relationship between upper and lower levels

function getSubComments($parent = 0, $level = 0) {
$db = &JFactory::getDBO();

$sql = "..."; // Query records SQL
$db->setQuery($sql);
$rows = $db->loadObjectList();

$list = array();

/ / First get the record set from the data, then add level to the record, the parent level = 0, its subordinate level = 1, and so on
foreach ($rows as $row) {
$row->level = $level;
$list[] = $row;

$tmpArr = getSubComments($row->id, $level + 1); // Recursive call
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;
}
}

// Output content hierarchically by level
if ($row->level) {
$pre = '';
for ($n = 0; $n < ; $row->level; $n++)
$pre .= '----';

echo $pre . '|- ';
}
echo strip_tags( $row->content);

http://www.bkjia.com/PHPjc/364650.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/364650.htmlTechArticlePHP outputs content according to the superior and subordinate hierarchical relationship function getSubComments($parent = 0, $level = 0) { $db = JFactory::getDBO(); $sql = ...; // SQL query for records $db-setQuery($sql); $rows = $...