Validators/Number.php

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<?php
namespace Depage\HtmlForm\Validators;
 
class Number extends Validator
{
    public function validate($value, $parameters = array())
    {
        $min = isset($parameters['min']) ? $parameters['min'] : null;
        $max = isset($parameters['max']) ? $parameters['max'] : null;
 
        return is_numeric($value)
            && (($value >= $min) || ($min === null))
            && (($value <= $max) || ($max === null));
    }
}