[SOLVED] Leading zero's in for loop

[realjumper]

Hi,

 

in this little loop I am getting the count of 0 - 31. It is giving '1,2,3,4,5,6,7,8,9,10 etc etc

 

I would like the leading zero to be there for the single digit numbers, like this '01,02,03,04,05,06,07,08,09,10,11 etc etc.

 

What am I not doing?

 

for ($num=1; $num <= 31; $num++ ) 
   { 
    echo "<option value=\"$num\">$num</option>"; 
   } 

 

Thanks :-)

[kenrbnsn]

Use the sprintf() function:

<?php
for ($num=1; $num < 32; $num++ ) 
    echo '<option value="' . $num . '">' . sprintf("%02d",$num) . '</option>'; 
?>

 

Ken

[realjumper]

Never mind, I got it. Sorry

 

for ($num=1; $num <= 31; $num++ ) 
				{
				if($num<10)
				$num = "0$num";
				else
				$num="$num"; 
				echo "<option value=\"$num\">$num</option>"; 
				} 

[/code/

[realjumper]

Oh thanks kenrbnsn, I didn't know about that function. I'll look it up :-)

[paul2463]

you could write a simple function to pad the zero such as

<?php

function padzero($num)
{
if ($num < 10)
{
$num = "0$num";
}
return $num;
}

//then 

for ($num=1; $num <= 31; $num++ ) 
   { 
    echo "<option value=\"$num\">padzero($num)</option>"; //value stays the same what is shown has padded zero
   } 

?>