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<?php
namespace uuf6429\ExpressionLanguage;
use RuntimeException;
/**
* A wrapper for an anonymous function.
* We do not return anonymous functions directly for security reason, to avoid
* calling arbitrary functions by returning arrays containing class/method or
* string function names. From the userland, one can still get access to the
* anonymous function using the various public methods.
*
* @author Christian Sciberras <[email protected]>
*/
class SafeCallable
{
protected $callback;
* Constructor.
* @param callable $callback The target callback
public function __construct(callable $callback)
$this->callback = $callback;
}
* @return callable
public function getCallback(): callable
return $this->callback;
* Call the callback with the provided arguments and returns result.
* @return mixed
public function call()
return $this->callArray(func_get_args());
* @param array $arguments
public function callArray(array $arguments)
$callback = $this->getCallback();
return count($arguments)
? call_user_func_array($callback, $arguments)
: $callback();
public function __invoke()
throw new RuntimeException('Callback wrapper cannot be invoked, use $wrapper->getCallback() instead.');
uuf6429 /
expression-language-arrowfunc
