PHP - 使用数组作为类常量
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PHP - use array as class constant
提问by Martin
Possible Duplicate:
Is it possible to declare an array as constant
可能的重复:
是否可以将数组声明为常量
Is it possible to use an array as a class constant in PHP?
是否可以在PHP 中使用数组作为类常量?
I.e
IE
const MYARRAY = array('123', '234');
If not why?
如果不是为什么?
回答by xdazz
No, you can't.
不,你不能。
But you could declare it as a static property.
但是您可以将其声明为静态属性。
public static $MYARRAY = array('123', '234');
---------------Update-----------------------------
- - - - - - - -更新 - - - - - - - - - - - - - - -
Array const is available from PHP 5.6.
数组常量从 PHP 5.6 开始可用。
回答by Alvin Wong
UPDATE:
更新:
This is now available in PHP 5.6 https://php.net/manual/en/migration56.new-features.php
这现在在 PHP 5.6 https://php.net/manual/en/migration56.new-features.php 中可用
No you can't assign an Array to PHP constant.
不,您不能将数组分配给 PHP 常量。
In http://www.php.net/manual/en/language.constants.syntax.php
在http://www.php.net/manual/en/language.constants.syntax.php
Constants may only evaluate to scalar values
常量只能计算为标量值
This is the reason.
这就是原因。
Scalar values for examples are int, float, string
示例的标量值为int, float,string

