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Determine if a specific Date and Time in within a day of week or time of day.

Here is a PHP function that will return true of false if a specific DateTime object falls within the day of week of two DateTime objects, down to the second. For example, you want to know if December 31, 2017 14:52:34 is between a Sunday at 12 AM and Sunday at 11PM?

To answer that question correctly, you can not simply rely on just comparing if the given date is between the start and end of the interval.

Crypto Currency PHP - Libraries in Pure PHP for Zetacoin and Bitcoin Compatable Crypto Currencies

A collection of common utilities and libraries in PHP for use with Bitcoin and Zetacoin compatable crypto currencies ustilizing the secp256k1 ECDSA curve. It's written in pure PHP and does not require any RPC calls to a Zetacoin client/server