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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