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This article mainly introduces "how the php code realizes the red packet function". In the daily operation, I believe that many people have doubts about how the php code realizes the red packet function. The editor has consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "how to achieve the red packet function in php code". Next, please follow the editor to study!

Php code to achieve the red packet function: 1, through the distribute_red_bages method to achieve red packets; 2, through the average_red_bages method to achieve evenly divided red packets; 3, through the rob_red_bages method to achieve the number of red packets.

This article operating environment: Windows7 system, PHP7.1 version, DELL G3 computer

How does the php code realize the red packet function?

PHP red packet function code

I was asked this question some time ago, but recently I wrote it when I was free. It's still very interesting.

First of all, do the classification of red packet snatching method:

For those who give out red envelopes, there are about three categories (I didn't think of the others for the time being, but they can contact me.)

First, the number of red packets is variable (it all depends on luck)

2. Specify the number of red packets (a certain number, at least one point)

Third, the average score of red packets (a certain number, everyone equally) or this is easy to write, right? Hey

The above code:

The following analysis of the spelling hand luck red packet (not to mention the equal share, everyone will):

The number of red packets is uncertain: (total amount: sum)

-> the first random number less than sum: n

-> Total amount minus that number: temp = sum-n

-> Random a number less than temp

-- > Recurse the above method until the total amount is 0

-- > returns an array of random results

This method is relatively conventional, used to achieve a specified number of red packets can also be achieved! But ~

The idea of specifying the number of red packets (total amount sum, number of red packets num)

-> randomly num numbers less than sum to generate an array

-> summing these numbers to get allsum

-> divide sum by allsum to get the common multiple of all generated numbers.

Each element of the array is multiplied by the common multiple to get the value of each red packet.

This method has drawbacks (the final result may be slightly larger than sum or slightly less than sum because division may have irrational numbers)

At this point, the study on "php code how to achieve the red packet function" is over. I hope to be able to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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