XF 1.1 Server Log Error Message

[Brent W]

This popped up today:

ErrorException: json_encode(): Invalid UTF-8 sequence in argument - library/XenForo/ViewRenderer/Json.php:179
Generated By: Neil, Today at 8:02 AM
Stack Trace
#0 [internal function]: XenForo_Application::handlePhpError(2, 'json_encode(): ...', '/home/cruising/...', 179, Array)
#1 /home/cruising/www/library/XenForo/ViewRenderer/Json.php(179): json_encode(Array)
#2 /home/cruising/www/library/XenForo/ViewRenderer/Json.php(98): XenForo_ViewRenderer_Json::jsonEncodeForOutput(Array)
#3 /home/cruising/www/library/XenForo/FrontController.php(533): XenForo_ViewRenderer_Json->renderView('XenForo_ViewPub...', Array, 'post_edit_inlin...', NULL)
#4 /home/cruising/www/library/XenForo/FrontController.php(156): XenForo_FrontController->renderView(Object(XenForo_ControllerResponse_View), Object(XenForo_ViewRenderer_Json), Array)
#5 /home/cruising/www/index.php(13): XenForo_FrontController->run()
#6 {main}
Request State
array(3) {
  ["url"] => string(218) "http://www.cruisingtalk.com/posts/272871/edit-inline?&_xfRequestUri=/threads/stacey-and-chris-on-black-watch.35023/&_xfNoRedirect=1&_xfToken=6165,1345550423,a9dd44c304e5fa9ed2376c7cd0af1921ee704747&_xfResponseType=json"
  ["_GET"] => array(4) {
    ["_xfRequestUri"] => string(47) "/threads/stacey-and-chris-on-black-watch.35023/"
    ["_xfNoRedirect"] => string(1) "1"
    ["_xfToken"] => string(56) "6165,1345550423,a9dd44c304e5fa9ed2376c7cd0af1921ee704747"
    ["_xfResponseType"] => string(4) "json"
  }
  ["_POST"] => array(0) {
  }
}

 

[Jake Bunce]

Any weird (non-utf8) characters in that post? Check that post in the database to be sure.

Also check the collations on your database. Everything should be utf8_general_ci. See this thread starting from this post:

http://xenforo.com/community/thread...red-please-try-again-later.14832/#post-194621

But since this error happens when editing a post you are probably checking the xf_post table.

 

[Brent W]

The collation is correct. This is constantly appearing now. Not sure what this user is doing but it seems to happen on almost all of his posts.

 

[Jake Bunce]

Any weird characters in the post?

What version of PHP? I found a report that this error is a bug in older versions of PHP:

http://stackoverflow.com/questions/1741894/zend-jsonencode-messing-up-why

You fix this by updating your PHP version to a version later than version 5.2.7.
There was a serious UTF-8 bug in PHP's json_encode function before that version. See the changelog for more details.

 

[Brent W]

5.3.16

I did see some question mark characters in some of his posts. Next time it happens I will see what I can do to capture the exact text from database and post here.

 

[Syndol]

Did you ever find out the cause for this?