Max int value?

PHP
1

I have a problem with int values.

$ticketId=7135306757429060445;
echo $ticketId gives me 7.1353067574291E+18

Why that, is there any max allowed size for int or what is the problem? So do I need to put larger int as a string?

2

http://www.php.net/manual/en/language.types.integer.php

3

I read this but since I am quite new into php and I don’t understand this documentation entirely and I don’t know what could be a solution in this case.

As I understand the problem is that the integer is too large. I use facebook api where user ids and albums ids get so large. So is the solution to use it as string instead of integer?

4

not necessarily

your example number 7135306757429060445 still fits within the range of numbers for BIGINT, which goes up to 9223372036854775807

5

It all depends if your host is 32bit or 64bit. A 32bit system can process an Int from -2147483648 to +2147483648, whereas a 64bit one −9223372036854775807 to +9223372036854775807.

Sure, store the value in your database as a 64bit Int, but if you have a 32bit host you’ll need to typecast it to a string to work with it.

You can check the following, pre-defined, constants for clarity. :slight_smile:

32bit


var_dump(
  PHP_INT_MAX
); # int(2147483647)

var_dump(
  PHP_INT_SIZE
); # int(4)

64bit


var_dump(
  PHP_INT_MAX
); # int(9223372036854775807)

var_dump(
  PHP_INT_SIZE
); # int(8)

*Disclaimer: I maybe completely wrong. :stuck_out_tongue:

6

Yes, use strings and if you need to do any calculations you can use BCMath functions.