/**
* test if a value is a valid number (int of float)
*
* @param string $value the value being tested
* @param boolean $empty if field can be empty
*/
function _is_number($value, $empty = false)
{
if (strlen($value) == 0) {
return $empty;
}
return SmartyValidate::_is_int($value) || SmartyValidate::_is_float($value);
}
