遍历mysql字段

Question

I'm trying to make an anonymous comment system, following is the code to print the existing comments. It is requires that I loop through the comm_id field in the database to get all the comments. How can I achieve this?

<ol id="update" class="timeline">
<?php
$sql=mysql_query("SELECT * from comments where com_id='' ");
while($row=mysql_fetch_array($sql) )
{
$comment=$row['comment'];
?>
<li class="box">
<?php echo $comment; ?>
</li>
<?php
}
?>

Answer 1

Remove where com_id='' . This will select all of the comments unconditionally.

---

Please avoid using ext/mysql and use PDO / mysqli if you can. No need to use SELECT * . You can just select the comment column.

Answer 2

Try this... It will show all comments from your database table

<ol id="update" class="timeline">
  <?php
    $sql=mysql_query("SELECT * from comments");
    while($row=mysql_fetch_array($sql) )
    {
    $comment=$row['comment'];
    ?>
    <li class="box">
    <?php echo $comment; ?>
    </li>
    <?php
    }
    ?>

Answer 3

remove this where com_id='' then it will consider all the comment and then display in loop:

<ol id="update" class="timeline">
<?php
$sql=mysql_query("SELECT * from comments  ");
while($row=mysql_fetch_array($sql) )
{
$comment=$row['comment'];
?>
<li class="box">
<?php echo $comment; ?>
</li>
<?php
}
?>