As of 7.1, if a parameter type is found then this method returns an instance of ReflectionNamedType (https://www.php.net/manual/en/class.reflectionnamedtype.php), a subclass of ReflectionType.
ReflectionParameter::getType
(PHP 7, PHP 8)
ReflectionParameter::getType — Gets a parameter's type
Açıklama
Gets the associated type of a parameter.
Bağımsız Değişkenler
Bu işlevin bağımsız değişkeni yoktur.
Dönen Değerler
Returns a ReflectionType object if a parameter type is
specified, null otherwise.
Örnekler
Örnek 1 ReflectionParameter::getType() Usage as of PHP 7.1.0
As of PHP 7.1.0, ReflectionType::__toString() is deprecated, and ReflectionParameter::getType() may return an instance of ReflectionNamedType. To get the name of the parameter type, ReflectionNamedType() is available in this case.
<?php
function someFunction(int $param, $param2) {}
$reflectionFunc = new ReflectionFunction('someFunction');
$reflectionParams = $reflectionFunc->getParameters();
$reflectionType1 = $reflectionParams[0]->getType();
$reflectionType2 = $reflectionParams[1]->getType();
assert($reflectionType1 instanceof ReflectionNamedType);
echo $reflectionType1->getName(), PHP_EOL;
var_dump($reflectionType2);
?>Yukarıdaki örneğin çıktısı:
int NULL
Örnek 2 ReflectionParameter::getType() Usage before PHP 7.1.0
<?php
function someFunction(int $param, $param2) {}
$reflectionFunc = new ReflectionFunction('someFunction');
$reflectionParams = $reflectionFunc->getParameters();
$reflectionType1 = $reflectionParams[0]->getType();
$reflectionType2 = $reflectionParams[1]->getType();
echo $reflectionType1, PHP_EOL;
var_dump($reflectionType2);
?>Yukarıdaki örneğin PHP 7.0 çıktısı:
int NULL
Örnek 3 ReflectionParameter::getType() Usage in PHP 8.0.0 and later
As of PHP 8.0.0, this method may return a ReflectionNamedType instance or
a ReflectionUnionType instance. The latter is a collection of the former.
To analyze a type, it is often convenient to normalize it to an array of ReflectionNamedType
objects. The following function will return an array of 0 or more ReflectionNamedType
instances.
<?php
function getAllTypes(ReflectionParameter $reflectionParameter): array
{
$reflectionType = $reflectionParameter->getType();
if (!$reflectionType) return [];
return $reflectionType instanceof ReflectionUnionType
? $reflectionType->getTypes()
: [$reflectionType];
}
?>Ayrıca Bakınız
- ReflectionParameter::hasType() - Checks if parameter has a type
- ReflectionType::__toString() - To string
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User Contributed Notes 1 note
Will Beaumont ¶
4 years ago
