Online PHP editor | refs for rmvFr

<?php class CallableByName { private $closure; public function __construct(\Closure $closure) { $this->closure = $closure; } public function invoke(array $parameters) { return call_user_func_array($this->closure, $this->getOrderedFromNamed($parameters)); } public function getOrderedFromNamed(array $parameters) { $orderedParameters = []; $functionReflection = new \ReflectionFunction($this->closure); foreach ($functionReflection->getParameters() as $parameterReflection) { /* @var $parameterReflection \ReflectionParameter */ $parameterName = $parameterReflection->getName(); if (isset($parameters[$parameterName])) { $orderedParameters[$parameterName] = $parameters[$parameterName]; continue; } if ($parameterReflection->isDefaultValueAvailable()) { $orderedParameters[$parameterName] = $parameterReflection->getDefaultValue(); continue; } $orderedParameters[$parameterName] = null; } return $orderedParameters; } } $callableByName = new CallableByName(function($foo, $bar, $qux = 'Holy Qux!', $zip = null) { var_dump(get_defined_vars()); }); $callableByName->invoke([ 'bar' => 'Hello', 'foo' => 'World', ]); $callableByName->invoke([ 'bar' => 'Hello', 'zip' => 'World', ]);