/**
* get html dom from string
* @param $str
* @param bool $lowercase
* @param bool $forceTagsClosed
* @param $target_charset
* @param bool $stripRN
* @param $defaultBRText
* @param $defaultSpanText
* @return bool|Tree
*/
static function buildFromString($str, $lowercase = true, $forceTagsClosed = true, $target_charset = self::DEFAULT_TARGET_CHARSET, $stripRN = true, $defaultBRText = self::DEFAULT_BR_TEXT, $defaultSpanText = self::DEFAULT_SPAN_TEXT)
{
$dom = new Tree(null, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText);
if (empty($str) or strlen($str) > self::MAX_FILE_SIZE) {
$dom->clear();
return false;
}
$dom->load($str, $lowercase, $stripRN);
return $dom;
}
echo '<ul>';
foreach ($tree as $node) {
$selected = !empty($node['state']['selected']) ? 'checked' : '';
echo "<li><input type=\"checkbox\" {$selected}>" . $node['name'];
if (!empty($node['children'])) {
$this->printSelectTree($node['children']);
}
echo '</li>';
}
echo '</ul>';
}
}
}
//demo
//所有数据
$data = [['id' => 1, 'pid' => 0, 'name' => 'a'], ['id' => 2, 'pid' => 0, 'name' => 'b'], ['id' => 3, 'pid' => 0, 'name' => 'c'], ['id' => 4, 'pid' => 2, 'name' => 'd'], ['id' => 5, 'pid' => 1, 'name' => 'e'], ['id' => 6, 'pid' => 5, 'name' => 'f'], ['id' => 7, 'pid' => 5, 'name' => 'g'], ['id' => 8, 'pid' => 5, 'name' => 'h'], ['id' => 9, 'pid' => 4, 'name' => 'i'], ['id' => 10, 'pid' => 9, 'name' => 'j'], ['id' => 11, 'pid' => 0, 'name' => 'k']];
//有权限查看的数据
$allowed_data = [['id' => 1, 'pid' => 0, 'name' => 'a'], ['id' => 2, 'pid' => 0, 'name' => 'b'], ['id' => 10, 'pid' => 9, 'name' => 'j']];
//选中的数据
$selected_keys = [1, 2, 9];
$tree = new Tree();
$tree->load($data, $allowed_data, $selected_keys);
echo "<style>li{list-style-type:none;}</style>";
echo "完整树:<br/>";
$tree->printTree($tree->buildTree());
echo "------------------------------------------------------<br/>";
echo "有权限的树:<br/>";
$tree->printAllowedTree($tree->buildTree());
echo "------------------------------------------------------<br/>";
echo "有选择功能的树:<br/>";
$tree->printSelectTree($tree->buildTree());
/**
* Load node children
*
* @param int $recursionLevel
* @return Node
*/
public function loadChildren($recursionLevel = 0)
{
$this->_tree->load($this, $recursionLevel);
return $this;
}
