How to get last value in for loop

[t_machine]

I'm trying to get the last value in the  for loop so I can assign a value to it.

 

Example:

 

for($i =0; $i<10; $i++){

 

  if(is_last_value_do_something){

    echo 'this is last in the loop.';

  }

}

 

Thanks for any help

[pocobueno1388]

In the example you give, this is how you would do it:

 

<?php

for($i =0; $i<10; $i++){

  if($i == 9){
    echo 'this is last in the loop.';
   }
}

?>

[cooldude832]

sorta seems to be a bad method to use a loop just to get the last item want to explain?

[t_machine]

Thanks for the replies I will expand a little on my example.

In my example the "10" is defined but in my codes the number is determined by the results in a database. I am using the "for" loop to display the results and would like for it to reach the last result and echo some extra content.

 

Thanks

[kratsg]

This is a nice way to do it :-P I prefer this method just to be my pure insane mind at work xD

 

<?php

for($i =0; $i<10; $i++){
}


echo $i;

?>

 

Tadaa! You just echoed the last item in the loop. It seems redundant, but works, for example:

 

<?php
while($row = mysql_fetch_array($query)){
$id = $row[id];
$username = $row[username];
$pass = md5($row[passwd]);
}

echo $id.$username.$pass;
?>

 

Quite literally, the loop keeps overwriting the variables (so to speak) so that when it finishes, the variable is stored with the last item in the loop.

[t_machine]

Thanks for the replies

I tried this and it seems to do the trick

 

for($i =0; $i<$count; $i++){

 

  if($i == ($count -1)){

    echo 'this is last in the loop.';

  }

}

[ThYGrEaTCoDeR201]

If you want to get the last row in a Mysql table, you can just LIMIT it.

[kratsg]

If you want to get the last row in a Mysql table, you can just LIMIT it.

 

Again, if you don't know the number of rows, use mysql_num_rows($query) and then create the LIMIT. There's just so many possible methods that can work in order to achieve the last row.

[discomatt]

Assuming you have an auto increment primary key ( most tables should )

 

SELECT `column` FROM `table` ORDER BY `primary_key` DESC LIMIT 1