4 replies to this topic

[lol33d]

Hi guys

i want change my number
my number is:
1
2
3
.
.
.
30

and i want change to:
01
02
03
.
.
.
30

all numbers in array.

help me please.

thank you

[Alexander]

An example method:

$range = range(1, 30); //create sample array of 1 .. 30
$rangecount = count($range)
for($i = 0; $i < $rangecount; $i++) {
  //pad two width, to the left, with the string '0'
  $range[$i] = str_pad($range[$i], 2, '0', STR_PAD_LEFT); 
}

print_r($range);

I've not tested this specific code, although it is correct use. You must be aware that 04 could be considered an octal or the leading zero stripped off, and must be represented as a string "04" and so the array will be strings. You can convert them to integers as needed.

Edited by Alexander, 21 April 2011 - 03:01 PM.
. --> ,

[__ak]

Wouldn't

$new = sprintf("%02d",$old);

work as well? Instead of string_pad?

[Alexander]

The sprintf specifier you had supplied is not designed to work with integers, which would rely on the integer being converted to a string which is usually untrue for other languages that use sprintf. It is more simple to rely on a native function to PHP of which is designed to handle string padding rather than "integer padding".

[__ak]

Thanks once again!

Edited by __ak, 25 April 2011 - 04:05 AM.