# uopz_redefine

(PECL uopz 1, PECL uopz 2, PECL uopz 5, PECL uopz 6, PECL uopz 7)

uopz_redefine — Redefine a constant

### 说明

uopz_redefine(string `$constant`, mixed `$value`): bool
uopz_redefine(string `$class`, string `$constant`, mixed `$value`): bool

Redefines the given `constant` as `value`

### 参数

`class`

  The name of the class containing the constant

`constant`

  The name of the constant

`value`

  The new value for the constant, must be a valid type for a constant variable

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

### 示例

示例 #1 uopz_redefine() example

`<?php
define("MY", 100);
uopz_redefine("MY", 1000);
echo MY;
?>`

以上示例会输出：

    1000

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