This is a macro that will help you create a radio button that will compare a default value with the old request, this is a really helpful improvement over the radio method of laravel

forms.php

/**
 * Create a radio button input field.
 *
 * @param string  $name
 * @param mixed   $value
 * @param bool    $mDefault - this can be the default value for the radio
 * @param bool    $checked
 * @param array   $options
 * @return string
 * @static
 */
Form::macro('detail_radio', function($name, $value = null, $mDefault =null, $bChecked = null, $options = []){



    if(null !== Input::old($name))
    {
        $bChecked = $value == Input::old($name) ? true : false;
    }elseif(is_null($bChecked)){
        $mDefault = is_null($mDefault) ? "null" : $mDefault;
        $bChecked = ($mDefault == $value) ? true: false;
    }
    $sTemp = Form::radio($name, $value,$bChecked, $options);

    return $sTemp;
});