ReflectionAttribute::newInstance

(PHP 8)

ReflectionAttribute::newInstance — Instantiates the attribute class represented by this ReflectionAttribute class and arguments

Açıklama

public ReflectionAttribute::newInstance(): object

Instantiates the attribute class represented by this ReflectionAttribute class and arguments.

Bağımsız Değişkenler

Bu işlevin bağımsız değişkeni yoktur.

Dönen Değerler

New instance of the attribute.

Improve This Page

Learn How To Improve This Page • Submit a Pull Request • Report a Bug

＋add a note

User Contributed Notes 2 notes

down

baptiste at pillot dot fr ¶

1 year ago

Calling ReflectionAttribute::newInstance() using an attribute name that has a matching class without #[Attribute] will result in an error.

Example :

<?php
class FakeAttribute {}

#[FakeAttribute]
class Test {}

try {
    (new ReflectionClass(Test::class))->getAttributes()[0]->newInstance();
}
catch (Error $error) {
    echo 'Throwed error ' . get_class($error) . ' with message : ' . $error->getMessage();
}
?>

This will output :

Throwed error Error with message : Attempting to use non-attribute class "FakeAttribute" as attribute

down

baptiste at pillot dot fr ¶

1 year ago

Calling ReflectionAttribute::newInstance() using an attribute name that does not have a corresponding class will result in an error.

Example :

<?php
#[FakeAttribute]
class Test {}

try {
  (new ReflectionClass(Test::class))->getAttributes()[0]->newInstance();
}
catch (Error $error) {
  echo 'Throwed error ' . get_class($error) . ' with message : ' . $error->getMessage();
}
?>

This will output :

Throwed error Error with message : Attribute class "FakeAttribute" not found

＋add a note