Php/docs/function.uopz-extend
来自菜鸟教程
uopz_extend
(PECL uopz 1, PECL uopz 2, PECL uopz 5, PECL uopz 6)
uopz_extend — Extend a class at runtime
说明
uopz_extend
( string $class
, string $parent
) : bool
Makes class
extend parent
参数
class
- The name of the class to extend
parent
- The name of the class to inherit
返回值
成功时返回 true
, 或者在失败时返回 false
。
错误/异常
As of PHP 7.4.0, uopz_extends() throws a RuntimeException,
if OPcache is enabled,
and the class entry of either class
or parent
(if it is a trait) is immutable.
范例
Example #1 uopz_extend() example
<?phpclass A {}class B {}uopz_extend(A::class, B::class);var_dump(class_parents(A::class));?>
以上例程会输出:
array(1) { ["B"]=> string(1) "B" }