README

这个类提供了在PHP中模拟和获取枚举数据的原生能力。

• 您可以轻松地转换枚举值。
• 需要php>=5.6.0，因为使用了数组常量。

入门指南

安装

composer require ginnerpeace/php-enum

示例

创建一个枚举数据的类，例如

<?php

use PHPEnum\Enum;

/**
 * custom global request code
 */
class RequestCode extends Enum
{
    CONST SUCCESS = 0;
    CONST ERROR = 1;

    CONST __DICT = [
        self::SUCCESS => 'request success',
        self::ERROR   => 'request failure',
    ];
}

使用

- 范围解析运算符

<?php

// Use value.
RequestCode::SUCCESS;                   // 0
RequestCode::ERROR;                     // 1

// Determine if the name has been in Enum.
RequestCode::hasName('SUCCESS');        // true
RequestCode::hasName('TEST');           // false

// Determine if the name has been in Enum.
// Using strict comparison usually, unless strict is set to false.
RequestCode::hasValue(1);               // true
RequestCode::hasValue('1');             // false

RequestCode::hasValue('1', false);      // true
RequestCode::hasValue(9);               // false

// Value & Name, convert each other.
RequestCode::nameToValue('SUCCESS');    // 0
RequestCode::nameToValue('TEST');       // throw UnexpectedValueException

RequestCode::valueToName(1);            // 'ERROR'
RequestCode::valueToName(9);            // throw UnexpectedValueException

// Translate the given constant name/value to the display value.
RequestCode::transName('ERROR');        // 'request failure'
RequestCode::transName('TEST');         // 'TEST'

RequestCode::transValue(0);             // 'request success'
RequestCode::transValue(9);             // 9

// Some Getter methods.
RequestCode::getMap();
// dump:
[
    'SUCCESS' => 0,
    'ERROR' => 1,
];

RequestCode::getNameMap();
// dump:
[
    0 => 'SUCCESS',
    1 => 'ERROR',
];

RequestCode::getDict();
// dump:
[
    0 => 'request success',
    1 => 'request failure',
];

RequestCode::getNameDict();
// dump:
[
    'SUCCESS' => 'request success',
    'ERROR' => 'request failure',
];

- 可实例化

<?php

// create instance via value
$requestSuccess = new RequestCode(0);
$requestSuccess->getName();  // SUCCESS
$requestSuccess->getValue(); // 0

// __toString
echo $requestSuccess; // '0'

// Same as Staticable use.
// It is implemented in __call and __callStatic
$requestSuccess->getNameDict();
// dump:
[
    'SUCCESS' => 'request success',
    'ERROR' => 'request failure',
];

// var_dump($requestSuccess)
object(RequestCode)
  protected 'name' => string 'SUCCESS'
  protected 'value' => int 0