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Running the archive via cron will result often in errors "Illegal string offset 'XAxisDisplay' 'XAxisFormat' " #11116

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tuxmaster opened this issue Dec 30, 2016 · 11 comments

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@tuxmaster
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commented Dec 30, 2016

Some jobs will run without any error and other will fail.
Piwik: 3.0.0
PHP: 7.1
Here the error:
NFO [2016-12-30 06:50:05] Scheduler: executing task Piwik\Plugins\ScheduledReports\API.sendReport_4...
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(73): Warning - Illegal string offset 'XAxisDisplay' - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(74): Warning - Illegal string offset 'XAxisFormat' - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(74): Warning - Cannot assign an empty string to a string offset - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(75): Warning - Illegal string offset 'XAxisName' - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(75): Warning - Cannot assign an empty string to a string offset - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(76): Warning - Illegal string offset 'XAxisUnit' - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(76): Warning - Cannot assign an empty string to a string offset - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(77): Warning - Illegal string offset 'Abscissa' - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(77): Warning - Cannot assign an empty string to a string offset - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(78): Warning - Illegal string offset 'AbsicssaPosition' - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING [2016-12-30 06:50:17] /var/www/piwik/libs/pChart/class/pData.class.php(80): Warning - Illegal string offset 'Axis' - Piwik 3.0.0 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
Uncaught exception: Cannot use string offset as an array
in /var/www/piwik/libs/pChart/class/pData.class.php line 80
#0 /var/www/piwik/plugins/ImageGraph/StaticGraph.php(241): pData->__construct()
#1 /var/www/piwik/plugins/ImageGraph/StaticGraph/GridGraph.php(68): Piwik\Plugins\ImageGraph\StaticGraph->initpData()
#2 /var/www/piwik/plugins/ImageGraph/StaticGraph/Evolution.php(24): Piwik\Plugins\ImageGraph\StaticGraph\GridGraph->initGridChart(true, 691053, false, true, true)
#3 /var/www/piwik/plugins/ImageGraph/API.php(493): Piwik\Plugins\ImageGraph\StaticGraph\Evolution->renderGraph()
#4 [internal function]: Piwik\Plugins\ImageGraph\API->get('2', 'day', '2016-11-30,2016...', 'MultiSites', 'getAll', 'evolution', '2', false, false, true, 700, 200, 9, 11, true, false, false, '222222', 'FFFFFF', 'CCCCCC', false, true, false, false)
#5 /var/www/piwik/core/API/Proxy.php(219): call_user_func_array(Array, Array)
#6 /var/www/piwik/core/API/Request.php(236): Piwik\API\Proxy->call('\Piwik\Plugins\...', 'get', Array)
#7 /var/www/piwik/core/ReportRenderer.php(261): Piwik\API\Request->process()
#8 /var/www/piwik/core/ReportRenderer/Html.php(210): Piwik\ReportRenderer::getStaticGraph(Array, 700, 200, true, NULL)
#9 /var/www/piwik/core/ReportRenderer/Html.php(175): Piwik\ReportRenderer\Html->getAttachment(Array, Array, 'Donnerstag, 29....')
#10 /var/www/piwik/plugins/ScheduledReports/API.php(942): Piwik\ReportRenderer\Html->getAttachments(Array, Array, 'Donnerstag, 29....')
#11 /var/www/piwik/plugins/ScheduledReports/API.php(500): Piwik\Plugins\ScheduledReports\API->getAttachments(Object(Piwik\ReportRenderer\Html), Array, Array, 'Donnerstag, 29....')
#12 /var/www/piwik/plugins/ScheduledReports/API.php(557): Piwik\Plugins\ScheduledReports\API->generateReport('4', '2016-12-29', 'de', 2, 'day')
#13 [internal function]: Piwik\Plugins\ScheduledReports\API->sendReport('4')
#14 /var/www/piwik/core/Scheduler/Scheduler.php(227): call_user_func(Array, '4')
#15 /var/www/piwik/core/Scheduler/Scheduler.php(124): Piwik\Scheduler\Scheduler->executeTask(Object(Piwik\Scheduler\Task))
#16 /var/www/piwik/plugins/CoreAdminHome/API.php(58): Piwik\Scheduler\Scheduler->run()
#17 /var/www/piwik/core/CronArchive.php(536): Piwik\Plugins\CoreAdminHome\API->runScheduledTasks()
#18 /var/www/piwik/core/CronArchive.php(290): Piwik\CronArchive->runScheduledTasks()
#19 /var/www/piwik/core/Access.php(469): Piwik\CronArchive->Piwik{closure}()
#20 /var/www/piwik/core/CronArchive.php(292): Piwik\Access::doAsSuperUser(Object(Closure))
#21 /var/www/piwik/plugins/CoreConsole/Commands/CoreArchiver.php(27): Piwik\CronArchive->main()
#22 /var/www/piwik/vendor/symfony/console/Symfony/Component/Console/Command/Command.php(257): Piwik\Plugins\CoreConsole\Commands\CoreArchiver->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#23 /var/www/piwik/vendor/symfony/console/Symfony/Component/Console/Application.php(874): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#24 /var/www/piwik/vendor/symfony/console/Symfony/Component/Console/Application.php(195): Symfony\Component\Console\Application->doRunCommand(Object(Piwik\Plugins\CoreConsole\Commands\CoreArchiver), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#25 [internal function]: Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#26 /var/www/piwik/core/Console.php(79): call_user_func(Array, Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#27 /var/www/piwik/core/Access.php(469): Piwik\Console->Piwik{closure}()
#28 /var/www/piwik/core/Console.php(80): Piwik\Access::doAsSuperUser(Object(Closure))
#29 /var/www/piwik/vendor/symfony/console/Symfony/Component/Console/Application.php(126): Piwik\Console->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#30 /var/www/piwik/console(27): Symfony\Component\Console\Application->run()
#31 {main}

@mattab

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commented Jan 2, 2017

Reupload all files from Piwik 3 as it looks like some files are not uploaded correctly?

@mattab mattab closed this Jan 2, 2017

@mattab mattab added the answered label Jan 2, 2017

@tuxmaster

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commented Jan 2, 2017

The update was done via the update function of piwik and no error was reported.
So the update function has an problem or the files are correct and the problem comes from anywhere else.

@mattab mattab removed the answered label Jan 2, 2017

@mattab mattab changed the title Running the archive via cron will result often in errors Running the archive via cron will result often in errors "Illegal string offset 'XAxisDisplay' 'XAxisFormat' " Jan 2, 2017

@mattab mattab added the Bug label Jan 2, 2017

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commented Jan 2, 2017

Ok re-opening this issue. Does anyone else experience this error message?

@CarlOrff

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commented Jan 4, 2017

Yes, I get this particular error message even with manual download of PDF reports. And it doesn't depend upon the PHP version (tried 7.1.0, 7.0.14 and 5.5.9).

Piwik encoutered an error: Uncaught Error: Cannot use string offset as an array in /var/www/vhosts/xxxxxxx/piwik/libs/pChart/class/pData.class.php:80 Stack trace: #0 /var/www/vhosts/xxxxxxx/piwik/plugins/ImageGraph/StaticGraph.php(241): pData->__construct() #1 /var/www/vhosts/xxxxxxx/piwik/plugins/ImageGraph/StaticGraph/GridGraph.php(68): Piwik\Plugins\ImageGraph\StaticGraph->initpData() #2 /var/www/vhosts/xxxxxxx/piwik/plugins/ImageGraph/StaticGraph/Evolution.php(24): Piwik\Plugins\ImageGraph\StaticGraph\GridGraph->initGridChart(true, 691053, false, true, true) #3 /var/www/vhosts/xxxxxxx/piwik/plugins/ImageGraph/API.php(493): Piwik\Plugins\ImageGraph\StaticGraph\Evolution->renderGraph() #4 [internal function]: Piwik\Plugins\ImageGraph\API->get('1', 'day', 'last30', 'VisitsSummary', 'get', 'evolution', '2', false, false, true, 760, 220, 9, 11, true, false, false, '222222', 'FFFFFF', 'CCCCCC', false (which lead to: Uncaught Error: Cannot use string offset as an array in /var/www/vhosts/xxxxxxx/piwik/libs/pChart/class/pData.class.php:80 Stack trace: #0 /var/www/vhosts/xxxxxxx/piwik/plugins/ImageGraph/StaticGraph.php(241): pData->__construct() #1 /var/www/vhosts/xxxxxxx/piwik/plugins/ImageGraph/StaticGraph/GridGraph.php(68): Piwik\Plugins\ImageGraph\StaticGraph->initpData() #2 /var/www/vhosts/xxxxxxx/piwik/plugins/ImageGraph/StaticGraph/Evolution.php(24): Piwik\Plugins\ImageGraph\StaticGraph\GridGraph->initGridChart(true, 691053, false, true, true) #3 /var/www/vhosts/xxxxxxx/piwik/plugins/ImageGraph/API.php(493): Piwik\Plugins\ImageGraph\StaticGraph\Evolution->renderGraph() #4 [internal function]: Piwik\Plugins\ImageGraph\API->get('1', 'day', 'last30', 'VisitsSummary', 'get', 'evolution', '2', false, false, true, 760, 220, 9, 11, true, false, false, '222222', 'FFFFFF', 'CCCCCC', false)
@ozbarshalom

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commented Jan 8, 2017

Same here.
Using php 7.1, Getting this error when trying to download an html report.
Pdf reports are working.

@mattab mattab reopened this Jan 9, 2017

@Wilkolicious

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commented Jan 23, 2017

Not using piwik, but found this through googling for a similar problem for our project:

From: http://php.net/manual/en/migration71.incompatible.php

The empty index operator is not supported for strings anymore

Applying the empty index operator to a string (e.g. $str[] = $x) throws a fatal error instead of converting silently to array.

PChart is getting relatively old now (hasn't been updated since 2014). You'll need to search for any places in the code where the variable is initialised as a string, then array elements are added.

These (member) variables should be initialised as an array().

It's a fairly big task, and really, pChart needs to be re-written/refined for PHP7.1 .

@senden9

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commented Jan 25, 2017

I also get this messages if i try to generate a mail report:

DEBUG Piwik\Plugin\Manager[2017-01-25 20:30:55] [8c16b] Loaded plugins: CorePluginsAdmin, CoreAdminHome, CoreHome, WebsiteMeasurable, Diagnostics, CoreVisualizations, Proxy, API, ExamplePlugin, Widgetize, Transitions, LanguagesManager, Actions, Dashboard, MultiSites, Referrers, UserLanguage, DevicesDetection, Goals, Ecommerce, SEO, Events, UserCountry, VisitsSummary, VisitFrequency, VisitTime, VisitorInterest, ExampleAPI, RssWidget, Feedback, Monolog, Login, UsersManager, SitesManager, Installation, CoreUpdater, CoreConsole, ScheduledReports, UserCountryMap, Live, CustomVariables, PrivacyManager, ImageGraph, Annotations, MobileMessaging, Overlay, SegmentEditor, Insights, Morpheus, Contents, BulkTracking, Resolution, DevicePlugins, Heartbeat, Intl, Marketplace, ProfessionalServices, UserId, CustomPiwikJs
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(73): Warning - Illegal string offset 'XAxisDisplay' - Piwik 3.0.1 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(74): Warning - Illegal string offset 'XAxisFormat' - Piwik 3.0.1 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(74): Warning - Cannot assign an empty string to a string offset - Piwik 3.0.1 - Please report this message in thePiwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(75): Warning - Illegal string offset 'XAxisName' - Piwik 3.0.1 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(75): Warning - Cannot assign an empty string to a string offset - Piwik 3.0.1 - Please report this message in thePiwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(76): Warning - Illegal string offset 'XAxisUnit' - Piwik 3.0.1 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(76): Warning - Cannot assign an empty string to a string offset - Piwik 3.0.1 - Please report this message in thePiwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(77): Warning - Illegal string offset 'Abscissa' - Piwik 3.0.1 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(77): Warning - Cannot assign an empty string to a string offset - Piwik 3.0.1 - Please report this message in thePiwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(78): Warning - Illegal string offset 'AbsicssaPosition' - Piwik 3.0.1 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
WARNING ImageGraph[2017-01-25 20:30:55] [8c16b] /var/www/piwik/libs/pChart/class/pData.class.php(80): Warning - Illegal string offset 'Axis' - Piwik 3.0.1 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)

System:

$ php -v
PHP 7.1.1 (cli) (built: Jan 18 2017 18:44:22) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2017 Zend Technologies
@daberlin

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commented Jan 27, 2017

@mattab

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commented Feb 20, 2017

Thanks for the link @daberlin - maybe you would like to try use this updated pChart in Piwik? We'd love your help on this one and a pull request 😎

@mattab mattab added this to the 3.0.3 milestone Feb 20, 2017

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commented Mar 28, 2017

@sgiehl probably this issue is about

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commented Apr 3, 2017

This will be released in 3.0.3-rc1 due in the next few hours, feedback welcome

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