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Sunday, January 22, 2017

HTML Javascript Classic Calculator

This is the example of HTML Javascript Classic Calculator, Click Here for the source code.

Thursday, January 19, 2017

Solution to Y2K38 bug in 32-bit PHP

Y2K38 is a 32-bit PHP but to display year more than 2038, or basically 03:14:07 UTC on 19 January 2038.

But why this bug happen? Well, PHP is based on UNIX system that means using integer as seconds passed from 00:00:00 UTC on 1 January 1970 until now, but the problem is that 32-bit integer can only hold number from -2,147,485,548 to 2,147,485,547, the number will reset to -2,147,485,548 when the maximum number reached, and of course, it will reset the date to 20:45:52 UTC on 13 December 1901.

See this gif:

I have made this fix for PHP, Click Here to download my project.

Q: Why i made this fix when year 2038 is long enough for PHP developer to fix it or in that year 32-bit system will obsolete and not used anymore?
A: Because i'm interested to make this and if old server stand until 2038, they don't have to change.

For more information about this bug in Wikipedia Click Here.