Online PHP editor | rfc for TLOW3

@ 2013-09-10T01:12:34Z

<?php

class CallableByName
{

    private $closure;

    public function __construct(\Closure $closure)
    {
        $this->closure = $closure;
    }

    public function invoke(array $parameters)
    {
        return call_user_func($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',
]);

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed in /in/TLOW3 on line 15 and at least 2 expected in /in/TLOW3:43 Stack trace: #0 /in/TLOW3(15): {closure}(Array) #1 /in/TLOW3(48): CallableByName->invoke(Array) #2 {main} thrown in /in/TLOW3 on line 43
Process exited with code 255.

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