/** * Defined by Postman_Zend_Validate_Interface * * Returns true if and only if $value is a valid integer * * @param string|integer $value * @return boolean */ public function isValid($value) { if (!is_string($value) && !is_int($value) && !is_float($value)) { $this->_error(self::INVALID); return false; } if (is_int($value)) { return true; } $this->_setValue($value); if ($this->_locale === null) { $locale = localeconv(); $valueFiltered = str_replace($locale['decimal_point'], '.', $value); $valueFiltered = str_replace($locale['thousands_sep'], '', $valueFiltered); if (strval(intval($valueFiltered)) != $valueFiltered) { $this->_error(self::NOT_INT); return false; } } else { try { if (!Postman_Zend_Locale_Format::isInteger($value, array('locale' => $this->_locale))) { $this->_error(self::NOT_INT); return false; } } catch (Postman_Zend_Locale_Exception $e) { $this->_error(self::NOT_INT); return false; } } return true; }