[fw-general] The validation of StringLength can't be used with Chinese

[mikespook]

Hi, all,

The method "isValid" in the class Zend_Validate_StringLength, is look like
this :

    public function isValid($value)
    {
        $valueString = (string) $value;
        $this->_setValue($valueString);
        $length = strlen($valueString);
        if ($length < $this->_min) {
            $this->_error(self::TOO_SHORT);
        }
        if (null !== $this->_max && $this->_max < $length) {
            $this->_error(self::TOO_LONG);
        }
        if (count($this->_messages)) {
            return false;
        } else {
            return true;
        }
    }


the line: $length = strlen($valueString); get $valueString's lenght.But it
didn't work with Chinese or any other mutil-char languages( eg. CKJ ).

so, what about using iconv_strlen or mb_strlen instead of the function
strlen?

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