WeChat red packet random generation algorithm php version, red packet algorithm php

Random red packet generation algorithm php version, red packet algorithm php

I thought about whether I could implement similar functions by writing a random Algorithm for the php version of red packets ).
// $ Bonus_totalTotal amount of Red Packets
// $ Bonus_countNumber of Red Packets
// $ Bonus_typeRed packet type 1 = hard work red packet 0 = normal red packet

Function randBonus ($ bonus_total = 0, $ bonus_count = 3, $ bonus_type = 1) {$ bonus_items = array (); // results to be divided $ bonus_balance = $ bonus_total; // balance after each score $ bonus_avg = number_format ($ bonus_total/$ bonus_count, 2); // average money for each red packet $ I = 0; while ($ I <$ bonus_count) {if ($ I <$ bonus_count-1) {$ rand = $ bonus_type? (Rand (1, $ bonus_balance * 100-1)/100): $ bonus_avg; // calculate the current red envelope amount based on the red envelope type $ bonus_items [] = $ rand; $ bonus_balance-= $ rand;} else {$ bonus_items [] = $ bonus_balance; // Contract all the final amounts for the last red packet, ensure that the total amount sent is correct} $ I ++;} return $ bonus_items ;}

Let's try it now.

// Send 3 lucky red packets, totaling $100 $ bonus_items = randBonus (100, 3, 1); // view the generated red packet var_dump ($ bonus_items ); // check whether the total amount is correct. Check if there is any trouble with var_dump (array_sum ($ bonus_items ));

Another version that uses arrays has the following principles:

function sendRandBonus($total=0, $count=3, $type=1){  if($type==1){    $input     = range(0.01, $total, 0.01);    if($count>1){      $rand_keys = (array) array_rand($input, $count-1);      $last    = 0;      foreach($rand_keys as $i=>$key){        $current  = $input[$key]-$last;        $items[]  = $current;        $last    = $input[$key];      }    }    $items[]    = $total-array_sum($items);  }else{    $avg      = number_format($total/$count, 2);    $i       = 0;    while($i<$count){      $items[]  = $i<$count-1?$avg:($total-array_sum($items));      $i++;    }  }  return $items;}

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