Fatal error ceil(): Argument #1 ($num) must be of type int|float, string given in GridGraph.php

[tsteur]

See error below on Matomo 4.14.3

Error: {"message":"ceil(): Argument #1 ($num) must be of type int|float, string given","file":"plugins/ImageGraph/StaticGraph/GridGraph.php","line":137,"request_id":"3a575","backtrace":" on plugins/ImageGraph/StaticGraph/GridGraph.php(137)\n#0 plugins/ImageGraph/StaticGraph/GridGraph.php(137): ceil('8.468.35')\n#1 plugins/ImageGraph/StaticGraph/Evolution.php(24): Piwik\Plugins\ImageGraph\StaticGraph\GridGraph->initGridChart(true, 691053, false, true, true)\n#2 plugins/ImageGraph/API.php(506): Piwik\Plugins\ImageGraph\StaticGraph\Evolution->renderGraph()\n#3 [internal function]: Piwik\Plugins\ImageGraph\API->get(3, 'week', '2022-09-19,2023...', 'Goals', 'get', 'evolution', 0, 'revenue', false, true, 1065, 450, '27', '27', '1', 'ecommerceOrder', '3450A3,43a047', '222222', 'efefef', 'dcdcdc', false, '0', false, false)\n#4 core/API/Proxy.php(244): call_user_func_array(Array, Array)\n#5 core/Context.php(28): Piwik\API\Proxy->Piwik\API\{closure}()\n#6 core/API/Proxy.php(335): Piwik\Context::executeWithQueryParameters(Array, Object(Closure))\n#7 core/API/Request.php(267): Piwik\API\Proxy->call('\\Piwik\\Plugins\\...', 'get', Array)\n#8 plugins/API/Controller.php(45): Piwik\API\Request->process()\n#9 [internal function]: Piwik\Plugins\API\Controller->index()\n#10 core/FrontController.php(637): call_user_func_array(Array, Array)\n#11 core/FrontController.php(169): Piwik\FrontController->doDispatch('API', false, Array)\n#12 core/dispatch.php(32): Piwik\FrontController->dispatch()\n#13 index.php(25): require_once('c...')\n#14 {main}","safemode_backtrace":"#0 [internal function]:

URL: /index.php?module=API&method=ImageGraph.get&idSite=3&apiModule=Goals&apiAction=get&token_auth=XYZANONYMIZED&idGoal=ecommerceOrder&period=week&date=2022-09-19,2023-04-16&filter_sort_column=revenue&column=revenue&columns=revenue&language=en&width=1065&height=450&fontSize=27&showMetricTitle=0&aliasedGraph=1&legendAppendMetric=0&backgroundColor=efefef&gridColor=dcdcdc&colors=3450A3,43a047&legendFontSize=27&cacherand=8723117

Referrer: None

GET: {"module":"API","method":"ImageGraph.get","idSite":"3","apiModule":"Goals","apiAction":"get","token_auth":"XYZANONYMIZED","idGoal":"ecommerceOrder","period":"week","date":"2022-09-19,2023-04-16","filter_sort_column":"revenue","column":"revenue","columns":"revenue","language":"en","width":"1065","height":"450","fontSize":"27","showMetricTitle":"0","aliasedGraph":"1","legendAppendMetric":"0","backgroundColor":"efefef","gridColor":"dcdcdc","colors":"3450A3,43a047","legendFontSize":"27","cacherand":"8723117","filter_limit":100}

[tsteur]

This happened again today.

[michalkleiner]

Hi @tsteur,
thank you for reporting the issue. Can you please provide a bit more detail on what steps you were taking when the error happened? Was it within the Matomo dashboard or an API request? Thanks!

[tsteur]

This happened again for yet a different customer.

@michalkleiner I don't have more information.

Was it within the Matomo dashboard or an API request? Thanks!

It says "Referrer: None" so I assume this was a regular API request.

[tsteur]

This one happened again.

[Stan-vw]

Can you perhaps explain a bit further what the problem/impact here is?
I'm not sure if it's just 1 referrer not showing but rather it's showing a "None" value (so it's easy to spot vs interpreting incorrect data), whether this is fixed with a refresh, whether it happens everytime you do the same steps or whether it seems random, ...
Thanks

[tsteur]

@Stan-vw the team would be better able to explain than me.

[michalkleiner]

It does look like an API request for a graph and the issue is with the max value being a string instead of a number. We can be defensive and retype in the method that gets the maximum, but that could be hiding some other potential issue. Looking at how CpChart\Data produces the maximum it should never be a string, so this might be worth investigating what is going on in more detail.

[michalkleiner]

I'll close this as a duplicate of #19940 since the symptoms are the same and the fix would also be the same.