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    uopz_extend

    (PECL uopz 1, PECL uopz 2, PECL uopz 5, PECL uopz 6, PECL uopz 7 < 7.1.0)

    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.

    示例

    示例 #1 uopz_extend() example

    <?php
    class A {}
    class     B {}

    uopz_extend(A::class, B::class);

    var_dump(class_parents(A::class));
    ?>

    以上示例会输出：

    array(1) {
  ["B"]=>
  string(1) "B"
}
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