Simple timestamp calculation

Hi all Firstly, thanks for reading my project. This is in PHP and is run from the command line. There are two inputs: 1. the date and time right now (i.e. the current timestamp) 2. a date in the past, for example, January 2010. Starting at the date in the past, and working all the way to the current timestamp, the script should output the timestamp at the start and end of each month. By start I mean 00:01 on the first day of the month, and by end I mean 23:59 on the last day of the month. When the script reaches the current month (based on the current timestamp), it outputs the timestamp at the beginning of the month and the current timestamp. So it would output something like this: timestamp at 00:01, January 1, 2010 timestamp at 23:59, January 31, 2010 timestamp at 00:01, February 1, 2010 timestamp at 23:59, February 27, 2010 timestamp at 00:01, March 1, 2010 timestamp at 23:59, March 31, 2010 ... timestamp at 00:01, April 1, 2018 timestamp at 23:59, April 30, 2018 timestamp at 00:01, May 1, 2018 current timestamp So you can see the tricky bit is figuring out how to get the date function to work itself through the start and end of each month based on a range of months. Any questions, please ask. NOTE COPY AND PASTE BIDS ABOUT YOUR WORDPRESS SKILLS, ETC. WILL BE IGNORED.