uopz_flags

    (PECL uopz 2 >= 2.0.2, PECL uopz 5, PECL uopz 6, PECL uopz 7)

    uopz_flags — Get or set flags on function or class

    说明

    uopz_flags(string$function, int$flags = PHP_INT_MAX): int
    uopz_flags(string$class, string$function, int$flags = PHP_INT_MAX): int

    Get or set the flags on a class or function entry at runtime

    参数

    class

    The name of a class

    function

    The name of the function. If class is given and an empty string is passed as function, uopz_flags() gets or sets the flags of the class entry.

    flags

    A valid set of ZEND_ACC_ flags. If omitted, uopz_flags() acts as getter.

    返回值

    If setting, returns old flags, else returns flags

    错误／异常

    As of PHP 7.4.0, if the parameter flags is passed, uopz_flags() throws a RuntimeException, if OPcache is enabled, and the class entry of class or the function entry of function is immutable.

    更新日志

    版本说明
    PECL uopz 5.0.0 The flags parameter is now optional. Formerly, ZEND_ACC_FETCH had to be passed to use uopz_flags() as getter.

    示例

    示例 #1 uopz_flags() example

    <?php
    class Test {
    public function     method() {
    return     __CLASS__;
    }
    }

    $flags = uopz_flags("Test", "method");

    var_dump((bool) (uopz_flags("Test", "method") & ZEND_ACC_PRIVATE));
    var_dump((bool) (uopz_flags("Test", "method") & ZEND_ACC_STATIC));

    var_dump(uopz_flags("Test", "method", $flags|ZEND_ACC_STATIC|ZEND_ACC_PRIVATE));

    var_dump((bool) (uopz_flags("Test", "method") & ZEND_ACC_PRIVATE));
    var_dump((bool) (uopz_flags("Test", "method") & ZEND_ACC_STATIC));
    ?>

    以上示例会输出：

    bool(false) bool(false) int(1234567890) bool(true) bool(true)

    示例 #2 "Unfinalize" a Class

    <?php
    final class MyClass
    {
    }

    $flags = uopz_flags(MyClass::class, '');
    uopz_flags(MyClass::class, '', $flags & ~ZEND_ACC_FINAL);
    var_dump((new ReflectionClass(MyClass::class))->isFinal());
    ?>

    以上示例会输出：

    bool(false)
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