PHP 自增数，每次新建一个div

Question

Basically I have a PHP script that creates a div for each item in the database, but I want to have a "rank" number in each div created, ie:

-----------------
Rank: 1      < div 1
-----------------
Rank: 2      < div 2
-----------------
Rank: 3      < div 3
-----------------

And so on..

Here's my current code...

while($row = mysql_fetch_array($result)) {

    $name = stripslashes($row['name']);
    $description = stripslashes($row['description']);
    $votes = stripslashes($row['votes']);
    $id = ($row['id']);
    $link = ($row['link']);
    $rank = 0;
    ?>

    <div class="site" id="site">
    <u><center>
    <strong><a href="<?php echo $link ?>" target="_blank"><?php echo $name; ?></a></strong></u>
    </font></center>
    <p>Rank:<?php echo $rank++ ; ?></p>
    <p><b><?php echo $description; ?></b><br />
    Votes:<b> <?php echo $votes; ?></b><br />
    </p>
    </div>

   <center>
    <?php
}
?>

But that doesn't work, any help would be greatly appreciated. (Also, the div's continue over multiple pages).

Answer 1

Put the $rank = 0; outside of the loop. Otherwise it will be always 0.

Answer 2

You define the $rank -variable in your loop, so in every loop-round it's defined with the value 0 . Define the counter-variable outside the loop and increase it in the loop.

Answer 3

Rank need to be outside the loop or you will reset it to 0 everytime

$rank = 0;
while($row = mysql_fetch_array($result)) {

    $name = stripslashes($row['name']);
    $description = stripslashes($row['description']);
    $votes = stripslashes($row['votes']);
    $id = ($row['id']);
    $link = ($row['link']);
    ?>

    <div class="site" id="site">
    <u><center>
    <strong><a href="<?php echo $link ?>" target="_blank"><?php echo $name; ?></a></strong></u>
    </font></center>
    <p>Rank:<?php echo $rank ; ?></p>
    <p><b><?php echo $description; ?></b><br />
    Votes:<b> <?php echo $votes; ?></b><br />
    </p>
    </div>

   <center>
    <?php
     $rank++;
}
?>

Additional for comment:

Use an offset for that, for example

$result_per_page = 5; // this is the number of result you show per page
$offset = isset($_GET['id'])? (int)$_GET['id'] : 1;
$rank = $offset * $result_per_page;

Answer 4

$rank needs to be defined outside of the while statement. Every time it loops it's resetting to zero. Also, increment $rank elsewhere - it makes the code slightly more robust and intelligible.