probability selector php

PHP概率選擇器

選擇經理，以根據選擇的統一分佈選擇下一步的元素從數據源使用。

無限迭代

 use Smoren  ProbabilitySelector  ProbabilitySelector ;

$ ps = new ProbabilitySelector ([
    // data     // weight  // initial usage counter
    [ ' first ' ,   1 ,         0 ],
    [ ' second ' ,  2 ,         0 ],
    [ ' third ' ,   3 ,         4 ],
]);

foreach ( $ ps as $ datum ) {
    echo "{ $ datum } , " ;
}
// second, second, first, second, third, third, second, first, third, second, third, third, second, first, third, ... 

迭代限制和出口

 use Smoren  ProbabilitySelector  ProbabilitySelector ;

$ ps = new ProbabilitySelector ([
    // data     // weight
    [ ' first ' ,   1 ],
    [ ' second ' ,  2 ],
]);
foreach ( $ ps -> getIterator ( 6 ) as $ datum ) {
    echo "{ $ datum } , " ;
}
// second, second, first, second, second, first

print_r ( $ ps -> export ());
/*
[
    ['first',  1, 2],
    ['second', 2, 4],
]
 */ 

單個決定

 use Smoren  ProbabilitySelector  ProbabilitySelector ;

$ ps = new ProbabilitySelector ([
    // data     // weight
    [ ' first ' ,   1 ],
    [ ' second ' ,  2 ],
]);
$ ps -> decide (); // second
$ ps -> decide (); // second
$ ps -> decide (); // first 

單位測試

 composer install
composer test-init
composer test

標準

PHP概率選擇器符合以下標準：

• PSR-1 - 基本編碼標準
• PSR-4 - 自動加載器
• PSR-12-擴展編碼樣式指南

執照

PHP概率選擇器已根據MIT許可獲得許可。