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ParameterResolver
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File: DefaultValueResolver.php
<?php namespace Invoker\ParameterResolver; use ReflectionException; use ReflectionFunctionAbstract; /** * Finds the default value for a parameter, *if it exists*. * * @author Matthieu Napoli <matthieu@mnapoli.fr> */ class DefaultValueResolver implements ParameterResolver { public function getParameters( ReflectionFunctionAbstract $reflection, array $providedParameters, array $resolvedParameters ) { $parameters = $reflection->getParameters(); // Skip parameters already resolved if (! empty($resolvedParameters)) { $parameters = array_diff_key($parameters, $resolvedParameters); } foreach ($parameters as $index => $parameter) { /** @var \ReflectionParameter $parameter */ if ($parameter->isOptional()) { try { $resolvedParameters[$index] = $parameter->getDefaultValue(); } catch (ReflectionException $e) { // Can't get default values from PHP internal classes and functions } } } return $resolvedParameters; } }