mktime time range

dewen

hi, anyone know the mktime time range? from the php manual, it says:

on systems where time_t is a 32bit signed integer, as most common today, the valid range for year is somewhere between 1901 and 2038

I have a RH9 box (Linux poseidon 2.4.20-6smp #1 SMP Thu Feb 27 09:59:40 EST 2003 i686 i686 i386 GNU/Linux). while when I do the test, it seems always between 1970-2038

<?PHP
echo mktime(0,0,0, 1, 1, 1968);
?>

it output "-14462". Any help is appreciated

devinemke

Originally posted by dewen
<?PHP
echo mktime(0,0,0, 1, 1, 1968);
?>

it output "-14462"

precisely. if you are createing a UNIX timestamp for a time prior to 1970-01-01 00:00:00 GMT then the result will be a negative number.

dewen

"-14462" seems to be a error output, if I put

<?PHP
echo mktime(0,0,0, 1, 1, 1950);
?>

1950 instead of 1968, it gives the same thing.

devinemke

works on my machine (FreeBSD)

echo mktime(0,0,0, 1, 1, 1950); // outputs -631123200

dewen

it's nice to know. Thank you, devinemke!

So where's the limitation? Redhat or PHP? Devinemke, which version of php are you using? I get 4.3.7

devinemke

here is all the info on my machine