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<?php
/**
* File was created 01.10.2015 18:02
*
* @author Karsten J. Gerber <[email protected]>
*/
namespace PeekAndPoke\Component\Psi\Psi;
use PeekAndPoke\Component\Psi\UnaryFunction;
* IsIntegerString check if the given value is an integer encoded as a string
* @see IsIntegerStringIsNotIntegerStringTest
class IsIntegerString implements UnaryFunction
{
* @param mixed $input
* @return bool
public function __invoke($input)
/** @noinspection TypeUnsafeComparisonInspection */
return is_string($input)
&& is_numeric($input)
&& (((int) $input) == $input) // the non-type-safe comparison here is on purpose
;
}
PeekAndPoke /
psi
