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ReflectionClass::getAttributes

(PHP 8)

ReflectionClass::getAttributesGets Attributes

Descrição

public ReflectionClass::getAttributes(?string $name = null, int $flags = 0): array

Returns all attributes declared on this class as an array of ReflectionAttribute.

Aviso

Esta função não está documentada; somente a lista de argumentos está disponível.

Parâmetros

name

flags

Valor Retornado

Array of attributes, as a ReflectionAttribute object.

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User Contributed Notes 1 note

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sergiolibe at gmail dot com
3 months ago
When using getAttributes() with specific attribute class and flags, flag 0 will return just matching attributes with specified class, and 2 will return matching attributes with specified class and children of that class:
<?php
   
#[Attribute(\Attribute::TARGET_CLASS)]
   
class SomeAttribute {}

   
#[Attribute(\Attribute::TARGET_CLASS)]
   
class ChildAttribute extends SomeAttribute {}

   
#[SomeAttribute]
    #[SomeChildAttribute]
   
class SomeClass {}

   
$rc = new ReflectionClass(SomeClass::class);

   
$r_atts = $rc->getAttributes(SomeAttribute::class, 0); // 0 is default, just given class
   
echo json_encode(array_map(fn(ReflectionAttribute $r_att) => $r_att->getName(), $r_atts)), PHP_EOL;

   
$r_atts = $rc->getAttributes(SomeAttribute::class, 2); // given class and children classes
   
echo json_encode(array_map(fn(ReflectionAttribute $r_att) => $r_att->getName(), $r_atts)), PHP_EOL;
?>

output:
["SomeAttribute"]
["SomeAttribute","ChildAttribute"]
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