Replace Or hide Broken Image

// Replace source
$('img').error(function(){
        $(this).attr('src', 'missing.png');
});

// Or, hide them
$("img").error(function(){
        $(this).hide();
});

Display Image Preview Be four Uploading Image.

See Live Demo.

http://stackoverflow.com/a/12369027


HTML

   type='file' onchange="readURL(this);" />
     id="blah" src="#" alt="your image" />

JQuery

function readURL(input) {
        if (input.files && input.files[0]) {
            var reader = new FileReader();

            reader.onload = function (e) {
                $('#blah')
                    .attr('src', e.target.result)
                    .width(150)
                    .height(200);
            };

            reader.readAsDataURL(input.files[0]);
        }
}

Save CI Session to DB Config

$config['sess_cookie_name'] = 'ci_session';
$config['sess_expiration'] = 7200;
$config['sess_encrypt_cookie'] = TRUE;
$config['sess_use_database'] = TRUE;
$config['sess_table_name'] = 'cms_ci_sessions';
$config['sess_match_ip'] = TRUE;
$config['sess_match_useragent'] = TRUE;
$config['sess_time_to_update'] = 7200;
$config['sess_expire_on_close'] = TRUE;