PHP Velho Oeste 2024

ReflectionParameter::isArray

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

ReflectionParameter::isArrayChecks if parameter expects an array

Warning

This function has been DEPRECATED as of PHP 8.0.0. Relying on this function is highly discouraged.

See the example below for an alternative way to derive this information.

Description

public ReflectionParameter::isArray(): bool

Checks if the parameter expects an array.

Parameters

This function has no parameters.

Return Values

true if an array is expected, false otherwise.

Examples

Example #1 PHP 8.0.0 equivalent

As of PHP 8.0.0, the following code will report if a type declares arrays, including as part of a union.

<?php
function declaresArray(ReflectionParameter $reflectionParameter): bool
{
$reflectionType = $reflectionParameter->getType();

if (!
$reflectionType) return false;

$types = $reflectionType instanceof ReflectionUnionType
? $reflectionType->getTypes()
: [
$reflectionType];

return
in_array('array', array_map(fn(ReflectionNamedType $t) => $t->getName(), $types));
}
?>

See Also

add a note add a note

User Contributed Notes 1 note

up
1
denis at example dot com
4 years ago
Hi, this is simple example of how to use it.

class Test
{
    public function testArray(array $a)
    {
        // do something...
       
        return $a;
    }
   
    public function testString(string $a)
    {
        // do something...
       
        return $a;
    }
}

$reflection = new ReflectionClass('Test');

foreach($reflection->getMethods() as $methods){
    foreach($methods->getParameters() as $param){
        var_dump($param->isArray());
    }
}

//bool(true)
//bool(false)
To Top