我发现这个类用于使用php和MySQL进行线程评论:
<?php
class Threaded_comments
{
public $parents = array();
public $children = array();
/**
* @param array $comments
*/
function __construct($comments)
{
foreach ($comments as $comment)
{
if ($comment['parent_id'] === NULL)
{
$this->parents[$comment['id']][] = $comment;
}
else
{
$this->children[$comment['parent_id']][] = $comment;
}
}
}
/**
* @param array $comment
* @param int $depth
*/
private function format_comment($comment, $depth)
{
for ($depth; $depth > 0; $depth--)
{
echo "\t";
}
echo $comment['text'];
echo "\n";
}
/**
* @param array $comment
* @param int $depth
*/
private function print_parent($comment, $depth = 0)
{
foreach ($comment as $c)
{
$this->format_comment($c, $depth);
if (isset($this->children[$c['id']]))
{
$this->print_parent($this->children[$c['id']], $depth + 1);
}
}
}
public function print_comments()
{
foreach ($this->parents as $c)
{
$this->print_parent($c);
}
}
}
这适用于这个数组:
$comment = array( array('id'=>1, 'parent_id'=>NULL, 'text'=>'Parent'),
array('id'=>2, 'parent_id'=>1, 'text'=>'Child'),
array('id'=>3, 'parent_id'=>2, 'text'=>'Child Third level'),
array('id'=>4, 'parent_id'=>NULL, 'text'=>'Second Parent'),
array('id'=>5, 'parent_id'=>4, 'text'=>'Second Child')
);
结果:
$tc = new Threaded_comments($comment);
$tc->print_comments();
结果是:
Parent
Child
Child Third level
Second Parent
Second Child
这是有效的但是对于defign评论列表(html)我需要将所有html代码添加到private function format_comment($comment, $depth)
。这不是好方法,我认为需要从html
单独php class
。
编辑:(这是 show / print 线程评论的页面)
function _comments_($id,$type){
$DB_QUERY = mySqli::f("SELECT id,user,email,message,timestamp,parent_id,rfield_1,rfield_2,rfield_3,rfield_4,rfield_5 FROM " . NEWS_COMMENTS . " LEFT JOIN " . NEWS_REVIEWS . " ON " . NEWS_COMMENTS . ".id = " . NEWS_REVIEWS . ".cid WHERE
pid = ? AND type = ? AND approved = 1 ORDER BY timestamp DESC LIMIT 12", $id, $type);
foreach($DB_QUERY as $row){
$commentdata[] = $row;
}
return $commentdata;
}
$comments_list = _comments_('125','book');
foreach($comments_list as $row){
$comments[] = array(
'id' => $row['id'],
'parent_id' => $row['parent_id'],
'name' => $row['user'],
'text' => $row['message'],
'datetime' => $row['timestamp']
);
}
$tc = new Threaded_comments($comments);
$tc->print_comments();
在我的页面中,线程评论显示为format_comment
并且工作正常。以防我需要使用php类中的单独html设计输出。
在这种情况下我们如何将html代码与类分开?!