[spoiler]
[code=*php]
<?php
function shortif($var1, $var2){
if($var1 == $var2){
return true;
}
?>
[/code]

This only uses the == version though, and you can modify it to use the different if() usages.

[code=*php]
<?php
function shortif($var1, $var2){ // if var1 equals var2
if($var1 == $var2){
return true;
}
function shortgreater($var1, $var2){ // if var1 is greater than var2
if($var1 > $var2){
return true;
}
function shortless($var1, $var2){ // if var1 is less than var2
if($var1< $var2){
return true;
}
?>
[/code]

And to use them? Simple.

[code=*php]
<?php
if(shortif($thd, 1)){ // sample, thd is used in my forum script
echo 'AR7Comm General';
}
?>
[/code]

For the greater/less, the same applies. Just set them accordingly.[/spoiler]

[spoiler=forumcount()]
This is for displaying the amount of threads on the main page of a forum. This is for MySQLi, but can easily be converted to MySQL, which is outdated.

[code=*php]<?php
function forumcount($num){
$querydata = "SELECT * FROM forums WHERE topic = $num"; // Define query
$query = mysqli_query($con, $querydata); // Activate query
echo mysqli_num_rows($query); // Echo number of rows
}
?>
[/code]

To use it is easy.
[code=*php]<?php
echo forumcount(1);
?>[/code]

The 1 will show the number of threads in category '1' of your forum. (AR7Comm General in my case) Change 1 to whatever category number you want.

This is for the main page as stated before. It needs to be modified to work with your forum script. (I will opensource mine when it's ready)[/spoiler]

[spoiler=postcount()]
This is for displaying the amount of posts on a thread on the thread list of your forum script. Put this code in the loop displaying the rows in your script.

[code=*php]<?php
function postcount($thd){
$querydata = "SELECT * FROM forumposts WHERE topic_id = $thd"; // Define query
$query = mysqli_query($con, $querydata); // Activate query
echo mysqli_num_rows($query); // Echo number of rows
}
?>
[/code]

To use it is simple. In the same loop, put (in my case):
[code=*php]
<?php echo postcount($row['id']); ?>
[/code]

This can be modified like the other to work with your forum script.[/spoiler]