<?php
$precision = 100000;
$offset = 0;
$prizes = [
['name' => '1', 'chance' => '0.1'],
['name' => '2', 'chance' => '0.2'],
['name' => '3', 'chance' => '0.3'],
['name' => '4', 'chance' => '0.1'],
];
$reduce = $offset;
foreach ($prizes as $index => $prize) {
$prizes[$index]['max'] = $reduce;
$reduce += $prize['chance'] * $precision;
$prizes[$index]['min'] = $reduce;
}
var_dump($prizes);
- Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- array(4) {
[0]=>
array(4) {
["name"]=>
string(1) "1"
["chance"]=>
string(3) "0.1"
["max"]=>
int(0)
["min"]=>
float(10000)
}
[1]=>
array(4) {
["name"]=>
string(1) "2"
["chance"]=>
string(3) "0.2"
["max"]=>
float(10000)
["min"]=>
float(30000)
}
[2]=>
array(4) {
["name"]=>
string(1) "3"
["chance"]=>
string(3) "0.3"
["max"]=>
float(30000)
["min"]=>
float(60000)
}
[3]=>
array(4) {
["name"]=>
string(1) "4"
["chance"]=>
string(3) "0.1"
["max"]=>
float(60000)
["min"]=>
float(70000)
}
}
preferences:
163.56 ms | 405 KiB | 212 Q