Array
(
    [0] => exception
    [1] => PDOException Object
        (
            [message:protected] => SQLSTATE[22P02]: Invalid text representation: 7 ERROR:  invalid input syntax for integer: ""
            [string:private] => 
            [code:protected] => 22P02
            [file:protected] => /var/www/biteo.pl/lib/class.database.php
            [line:protected] => 80
            [trace:private] => Array
                (
                    [0] => Array
                        (
                            [file] => /var/www/biteo.pl/lib/class.database.php
                            [line] => 80
                            [function] => execute
                            [class] => PDOStatement
                            [type] => ->
                            [args] => Array
                                (
                                    [0] => Array
                                        (
                                            [0] => 
                                        )

                                )

                        )

                    [1] => Array
                        (
                            [file] => /var/www/biteo.pl/models/offers.php
                            [line] => 2229
                            [function] => PdoQuery
                            [class] => Database
                            [type] => ->
                            [args] => Array
                                (
                                    [0] => UPDATE offers SET offer_visitor_counter = offer_visitor_counter + 1 WHERE offer_id = ? 
                                    [1] => Array
                                        (
                                            [0] => 
                                        )

                                )

                        )

                    [2] => Array
                        (
                            [file] => /var/www/biteo.pl/classes/offer_main.php
                            [line] => 62
                            [function] => increaseOfferVisitorCounter
                            [class] => offers
                            [type] => ->
                            [args] => Array
                                (
                                    [0] => 
                                )

                        )

                    [3] => Array
                        (
                            [file] => /var/www/biteo.pl/index.php
                            [line] => 127
                            [function] => showOffer
                            [class] => offer_main
                            [type] => ->
                            [args] => Array
                                (
                                )

                        )

                )

            [errorInfo] => Array
                (
                    [0] => 22P02
                    [1] => 7
                    [2] => ERROR:  invalid input syntax for integer: ""
                )

        )

)