PHP string Formatting

Question

Using PHP I want to format a number(7) like in 6 digits 000007

I had done this via printf Function but wanted to store it in a variable how can I do so.

Below mentioned code not working, giving output as :000007 and printing it on screen:

$gensubjectid=printf("%06d\n", $origionalsubjectid);

Suggest.

Answer 1

Use str_pad().

$invID = str_pad($invID, 10, '0', STR_PAD_LEFT);

Or

Use sprintf: http://php.net/function.sprintf

$number = 51;
$number = sprintf('%10d',$number);
print $number;
// outputs 0000000051

$number = 8051; $number = sprintf('%10d',$number); print $number; // outputs 0000008051

Answer 2

You can use: spirntf

$unformattedNumber = 7;  
$formattedNumber = sprintf('%06d', $unformattedNumber);

Or you can try this (str_pad):

$input = 7;
str_pad($input, 6, "0", STR_PAD_LEFT);

Answer 3

Use sprintf - it's identical to printf but it returns the formatted string.