ReflectionClass::hasProperty

(PHP 5 >= 5.1.2, PHP 7, PHP 8)

ReflectionClass::hasProperty — Özellik tanımlı mı diye bakar

Açıklama

public ReflectionClass::hasProperty(string $isim): bool

Belirtilen özellik tanımlıysa true döner.

Bağımsız Değişkenler

isim: Bakılacak özelliğin ismi.

Dönen Değerler

Özellik tanımlıysa true yoksa false döner.

Örnekler

Örnek 1 - ReflectionClass::hasProperty() örneği

<?php
class Foo {
    public    $p1;
    protected $p2;
    private   $p3;

}

$obj = new ReflectionObject(new Foo());

var_dump($obj->hasProperty("p1"));
var_dump($obj->hasProperty("p2"));
var_dump($obj->hasProperty("p3"));
var_dump($obj->hasProperty("p4"));
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

bool(true)
bool(true)
bool(true)
bool(false)

Ayrıca Bakınız

ReflectionClass::hasConstant() - Sabit tanımlı mı diye bakar
ReflectionClass::hasMethod() - Yöntem tanımlı mı diye bakar

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User Contributed Notes 3 notes

down

dalguete at gmail dot com ¶

3 years ago

hasProperty() now is consistent with getProperty() and getProperties() methods, thanks to this fix https://bugs.php.net/bug.php?id=49719

hasProperty() no longer returns true in private properties from parent classes.

down

rwilczek at web-appz dot de ¶

15 years ago

Note, that this method does not guarantee, that you can get a property with ReflectionClass::getProperty().

ReflectionClass::hasProperty() considers the parent classes (ignoring however, that a private property is not inherited), while ReflectionClass::getProperty() and ReflectionClass::getProperties() don't care about inheritance.

(Tested with PHP 5.3.0)

<?php
class Foo
{
    private $x;
}

class Bar extends Foo
{
    //
}

$foo = new ReflectionClass('Foo');
$bar = new ReflectionClass('Bar');

var_dump($foo->hasProperty('x'); // bool(true)
var_dump($bar->hasProperty('x'); // bool(true)

var_dump(get_class($foo->getProperty('x'))); //string(18) "ReflectionProperty"
try {
    $bar->getProperty('x');
} catch (ReflectionException $e) {
    echo $e->getMessage(); // Property x does not exist
}
?>

down

-1

dalguete at gmail dot com ¶

3 years ago

hasProperty() now is consistent with getProperty() and getProperties() methods, thanks to this fix https://bugs.php.net/bug.php?id=49719

hasProperty() no longer returns true in private properties.

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