LdapTools\Query\Operator\BaseOperator::setOperatorSymbol PHP Method

    public function setOperatorSymbol($symbol)
    {
        if (!in_array($symbol, $this->validOperators)) {
            throw new LdapQueryException(sprintf('Invalid operator symbol "%s". Valid operator symbols are: %s', $symbol, implode(', ', $this->validOperators)));
        }
        $this->operatorSymbol = $symbol;
    }