我在博客文章中做了类似的事情。但是，我只是尝试了相同的数据。当您说 嵌套注释时 ，最好以这种方式使用 嵌套函数 ：
function getComments($parent){ # Get the data from SQL. # Check if it has nested comments. if (hasComments()) getComments($child); # $child is the ID of the current comment.}为此，我已将您的数据导入MySQL并尝试了以下操作：
<?php mysql_connect('localhost', 'root'); mysql_select_db('nestedcomments'); function getComments($parent) { $res = mysql_query("SELECT * FROM `nestcomm` WHERe `parent` = $parent"); if (mysql_num_rows($res)) { echo "<ul>n"; while (($dat = mysql_fetch_array($res)) !== false) echo "<li>", $dat["text"], getComments($dat["id"]), "</li>n"; echo "</ul>n"; } else echo ($parent === 0) ? 'No Comments!' : ""; } getComments(0);?>就像我之前说过的那样，我使用了嵌套函数，并且正如您所问的那样，这种输出几乎是相同的（不带花括号）：
<ul><li>This is the parent first comment!<ul><li>This is the reply for the first parent comment!<ul><li>This is a reply for the first reply of the parent comment!</li><li>This is a third reply for the first parent comment!</li></ul></li><li>This is another reply for first parent comment!</li></ul></li><li>This is gonna be parent second comment!<ul><li>This is a reply for the second comment!</li></ul></li><li>This is fourth parent comment!</li></ul>
希望这会有所帮助。
