probability selector php

PHP概率选择器

选择经理，以根据选择的统一分布选择下一步的元素从数据源使用。

无限迭代

 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],
]
 */ 

单个决定

 use Smoren  ProbabilitySelector  ProbabilitySelector ;

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

单位测试

 composer install
composer test-init
composer test

标准

PHP概率选择器符合以下标准：

• PSR-1 - 基本编码标准
• PSR-4 - 自动加载器
• PSR-12-扩展编码样式指南

执照

PHP概率选择器已根据MIT许可获得许可。