Having an issue converting a float to an integer (PHP)

Question

Short story, here's my code:

var_dump($recentGame->createDate);
var_dump((int) $recentGame->createDate);

Is producing the following output:

float 1416772859827
int -566347853

Why is the output of the typecasted output not this:

int 1416772859827

The maximum value depends on the system. 32 bit systems have a maximum signed integer range of -2147483648 to 2147483647. So for example on such a system, intval('1000000000000') will return 2147483647. The maximum signed integer value for 64 bit systems is 9223372036854775807. php.net/manual/en/function.intval.php — user557846
– user557846, Commented Nov 23, 2014 at 22:08
So what does that createDate represent as an integer? It isn't a standard unix timestamp is it? — Mark Baker
– Mark Baker, Commented Nov 23, 2014 at 22:10
It's an epoch time value, I need to create a dateTime object from it. — stu177
– stu177, Commented Nov 23, 2014 at 22:17
you have milisecounds so: $seconds = $recentGame->createDate / 1000; echo date("d-m-Y", $seconds); — user557846
– user557846, Commented Nov 23, 2014 at 22:24

Mark Baker · Accepted Answer · 2014-11-23 22:09:13Z

1

Quoting from the PHP docs:

The size of an integer is platform-dependent, although a maximum value of about two billion is the usual value (that's 32 bits signed). 64-bit platforms usually have a maximum value of about 9E18, except for Windows, which is always 32 bit. PHP does not support unsigned integers. Integer size can be determined using the constant PHP_INT_SIZE, and maximum value using the constant PHP_INT_MAX since PHP 4.4.0 and PHP 5.0.5.

answered Nov 23, 2014 at 22:09

Mark Baker

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