php sql subgroup list [closed] - php

Question

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 8 years ago.
Improve this question
I have a simple code which gives me error. Could someone help me to explain what would be the best solution. I am not just interested the solution rather than the explanation as I have been struggling with this type of listing. I have googled it but I could not find a dummy explanation.
Many thanks
<?php
// Run a Query
$result = mysql_query("SELECT * FROM weblinks ORDER BY yeargroup ASC");
$a=-1;
while ($row = mysql_fetch_array($result)) {
if ($row['yeargroup'] == $a) {
echo "<h2 class=\"class\">Year ".$row['yeargroup']."</h2>";
} else {
echo "<ul><li>";
echo "<img src=\"" . $row['img'] . "\"/>";
echo "".$row['webname']." - ".$row['weblink'];
echo "<div class=\"text\">".$row['content']."</div>";
echo "</li></ul>";
}
$a=$row['yeargroup'];
}
?>
fixed the typo error, thanks
This is how it should be
Year 1
Link1
Link2
Link3
Year 2
Link1
Link2
Link3
etc.

Answer 1

$a = null;
while ($row = mysql_fetch_array($result)) {
//check if $a is equal to the current yeargroup
//if not, output the header and open the list
if ($row['yeargroup'] <> $a) {
echo "<h2 class=\"class\">Year ".$row['yeargroup']."</h2>";
echo "<ul>";
}
echo "<li>";
echo "<img src=\"" . $row['img'] . "\"/>";
echo "".$row['webname']." - ".$row['weblink'];
echo "<div class=\"text\">".$row['content']."</div>";
echo "</li>";
//check if $a is equal to the current yeargroup
//if not, close the list and set $a to the yeargroup for the loop
if ($row['yeargroup'] <> $a) {
echo "</ul>";
$a = $row['yeargroup'];
}
}