How to read next row in a mySql Query

[Reboot]

Hi!

I have this php code which looks like this:

$sql = ......
$result = mysql_query($sql,$connection)
or die("Couldn't execute SELECT query");
 
while ($row = mysql_fetch_array($result)) {
......
}
 

What i want to do is be able to read the next row in the query. So for example:

while ($row = mysql_fetch_array($result)) {
......
if (ID for next row/record = ID for this row/record) {
do this
}
}
 

I almost got the solution , but the very last record for my query is always missing using this code:

$current_row=mysql_fetch_array($result); //read $current_row
while ($next_row = mysql_fetch_array($result)) { //read $next_row
......
if ($current_row['id']==$next_row['id']) { //compare it
.....
.....
}
$current_row=$next_row; //$next_row become current_row on next step
}
 

Thanks for any help

[Rabbit]

And it should be missing. The last row has no next row to compare to.

[Reboot]

The user mikosiko (http://forums.devnetwork.net) gives me the perfect solution for this problem:

<?php
 
  // Example
  $heading_column = '<whatever is the name of your heading column>';
  $last_heading = null;
 
  while($row = your_fetch_assoc_statement){
        // detect a change in the heading value and output the new heading
        if($last_heading != $row[$heading_column]){
                // detect if it is not the first heading - close out the previous section
                if($last_heading != null){
                        // your code to close the previous section (table, div, etc)...
                        echo "close section<br />";
                }
                // output the new heading here...
                echo "new section title - {$row[$heading_column]}<br />";
 
                // save the new heading as the last_heading
                $last_heading = $row[$heading_column];
        }
        // output the actual data here...
        echo "data - {$row['your_data']}<br />";
  }
  // if there was any output - close out the last section
  if($last_heading != null){
        // your code to close the previous section (table, div, etc)...
        echo "close section<br ?>";
  }
?>