uopz_flags

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

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

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

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.

范例

Example #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));
?>

以上例程会输出：

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

User Contributed Notes

ASchmidt at Anamera dot net 19-Jul-2018 04:44
If the method name is set to an empty string, then the flags for the CLASS itself will be affected, instead of an individual method. This can be used to remove the "final" attribute from a class.
<?php
declare(strict_types=1);

final class MyClass { function mymethod() {} };
uopz_flags(MyClass::class, '', 0);
?>

Note: Although not documented, setting the method to NULL will also target the CLASS flags, however, that syntax will clash with strict types because of the developer's improper function signature.