how to combine two unsigned 32bit integers to 64bit integer in php?

Question

I have two unsigned 32 bit integers that I need to combine to make one long integer or a string it does not matter if it is in string format as long as I have the number. for example:

low: -589298671

high: 4

thanks!

Answer 1

I ended up finding a solution in this article .

it has solved my problem perfectly also will work on any system. it's a great piece of code.