[RESOLVED] Length of Integer

anthill

I'm guessing this is relatively easy to do, but i can't find the right command.

Basically i have a number:

$i = 1

i want to keep adding to that number in a loop but i want it to give me:

01
02
03
04
...

rather than

1
2
3
4

how can i do this? If i make $i=01 i then get:

01
2
3
4

Thanks

_theworks

i believe [man]for[/man] is what your looking for.

for ($i=0;$i<=4;$i++) {
echo '0'.$i.'<br>';
}

anthill

Exactly but i also want to keep $i to a max length of two, else with your solution you'd get

..
08
09
010
011
..

instead of

..
08
09
10
11
...

sorry for not mentioning this earlier.

Ant

gammaster

for ($i=0;$i<=20;$i++) {
   if($i < 10)
      echo '0'.$i.'<br>';
   else
      echo $i.'<br>';
   ]

_theworks


if ($i < 10 ){
echo '0'.$i;
}else {
echo $i;
}

dhodge

Try using this instead of looping through all the values...

str_pad($i, 2, 0, STR_PAD_LEFT)

so...

<?php
for ($i=1; $i<105; $i++)
	echo str_pad($i, 2, 0, STR_PAD_LEFT),"<br>";
?>

would give you
01
02
...
10
11
...
100
101
etc.

laserlight

Alternatively you could use [man]printf/man, e.g.

printf("%'02d", $i);

gammaster

dhodg say:

Try using this instead of looping through all the values...
<?php 
for ($i=1; $i<105; $i++) 
    echo str_pad($i, 2, 0, STR_PAD_LEFT),"<br>"; 
?>

Isn`t this a loop?

dhodge

Depends on what you are doing with these values where they are coming from etc... Might or might not have to use a loop. Either way str_pad is the cleaner way to do it.

anthill

You guys are ace, thanks!

used dhodge's method, cheers man!! Thats exactly what i was looking for!