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.
uopz_flags
(PECL uopz 2 >= 2.0.2, PECL uopz 5, PECL uopz 6)
uopz_flags — Get or set flags on function or class
Opis
uopz_flags
( string
$function
[, int $flags = PHP_INT_MAX
] ) : int
uopz_flags
( string
$class
, string $function
[, int $flags = PHP_INT_MAX
] ) : intGet or set the flags on a class or function entry at runtime
Parametry
-
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.
Zwracane wartości
If setting, returns old flags, else returns flags
Rejestr zmian
| Wersja | Opis |
|---|---|
| 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.
|
Przykłady
Przykład #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));
?>
Powyższy przykład wyświetli:
bool(false) bool(false) int(1234567890) bool(true) bool(true)
add a note
User Contributed Notes 2 notes
ASchmidt at Anamera dot net ¶
5 years ago
ASchmidt at Anamera dot net ¶
3 years ago
To clarify the above hint:
"...the class entry of class or the function entry of function is immutable"
Neither PHP class or function definitions have any "immutable" keyword - so this note is confusing, as it implies that a PHP programmer has any control over this. In reality, the "immutable" state mentioned is an internally-controlled optimization/shared memory feature of OPcache.
Consequently, if one has a need to set (alter) the flags of a PHP class or function by means of "uopz_flags()", then it is necessary to EXCLUDE the PHP script of the referenced class or function from OPcache, using the "opcache.blacklist_filename" INI parameter.
