PHP Puzzles:
Time Value of Money

By Oscar Merida

Is it better to get $100 today or $110 in one years time? The answer’s not straightforward because you could use $100 today to potentially earn more than $10 over 12 months. How do you know what to do? For that, you need to know how to calculate a rate of return or use it to compare amounts of money at different times. Hold on for a bit, we’re bending the time—space (money?) continuum.

This article was originally published in the October 2021 issue of php[architect] magazine. To read the complete article please subscribe or purchase the complete issue.

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