mktime problem

tomhilton

Hi, I use mktime() in a number of php scripts, and have just moved to a new server, running php.4.2.2. My mktime functions work fine on old server (4.1.0) now returning values of -1. Since mktime is part of core php, why would this be. I even tried using it with hardcoded values instead of variables ($thisdate=mktime(0,0,0,11,13,1961) ) and still get invalid output. Any suggestions would be greatly appreciated.

dalecosp

Unix or windows server?

tomhilton

The old machine was linux 6.? and new one is 8.0. I read through the php manual discussions, and saw a note from a contributor that some versions of linux have a version of glibc that will cause an invalid return on mktime for input dates prior to 1/1/1970. I tried a pre and post 1/1/1970 test on the new server, and it returned -1 for the pre 1970 date and a valid unix timestamp for the post 1/1/1970 mktime test. I'm guessing that is causing the problem.

dalecosp

I've seen that one, too, and wondered about it...hope you find a solution. I've never dealt with data old as me.....

tomhilton

Yeah! no doubt. Most of my mktime functions relate to recent events, but I do have the occassional "birthday" function, and I dont like storing date data in mysql as "2002-11-13" type, just seems unnatural. Am thinking I need the "old" version of glibc installed, but in case that's not possible, I guess I could generate something that calculates how many seconds old someone is manually, compared to 1/1/1970 epoch starting point.