[#22597] - Error: 0 Using $this when not in object context
- Closed
- 13 Oct 2018
- Medium
- Build: staging
- # 22597
Steps to reproduce the issue
Open any page.
Expected result
No error.
Actual result
Error: 0 Using $this when not in object context
System information (as much as possible)
- Joomla! 3.8.13 Stable [ Amani ] 9-October-2018 14:00 GMT
- Plugins:
- com_mailto : 3.0.0
- com_wrapper : 3.0.0
- com_admin : 3.0.0
- com_banners : 3.0.0
- com_cache : 3.0.0
- com_categories : 3.0.0
- com_checkin : 3.0.0
- com_contact : 3.0.0
- com_cpanel : 3.0.0
- com_installer : 3.0.0
- com_languages : 3.0.0
- com_login : 3.0.0
- com_media : 3.0.0
- com_menus : 3.0.0
- com_messages : 3.0.0
- com_modules : 3.0.0
- com_newsfeeds : 3.0.0
- com_plugins : 3.0.0
- com_search : 3.0.0
- com_templates : 3.0.0
- com_weblinks : 3.0.0
- com_content : 3.0.0
- com_config : 3.0.0
- com_redirect : 3.0.0
- com_users : 3.0.0
- com_finder : 3.0.0
- com_joomlaupdate : 3.6.2
- com_tags : 3.1.0
- com_contenthistory : 3.2.0
- com_ajax : 3.2.0
- com_postinstall : 3.2.0
- com_fields : 3.7.0
- com_associations : 3.7.0
- PHPMailer : 5.2.6
- SimplePie : 1.2
- LIB_PHPUTF8 : 0.5
- LIB_JOOMLA : 13.1
- LIB_IDNA : 0.8.0
- FOF : 2.4.3
- LIB_PHPASS : 0.3
- mod_articles_archive : 3.0.0
- mod_articles_latest : 3.0.0
- mod_articles_popular : 3.0.0
- mod_banners : 3.0.0
- mod_breadcrumbs : 3.0.0
- mod_custom : 3.0.0
- mod_feed : 3.0.0
- mod_footer : 3.0.0
- mod_login : 3.0.0
- mod_menu : 3.0.0
- mod_articles_news : 3.0.0
- mod_random_image : 3.0.0
- mod_related_items : 3.0.0
- mod_search : 3.0.0
- mod_stats : 3.0.0
- mod_syndicate : 3.0.0
- mod_users_latest : 3.0.0
- mod_weblinks : 3.0.0
- mod_whosonline : 3.0.0
- mod_wrapper : 3.0.0
- mod_articles_category : 3.0.0
- mod_articles_categories : 3.0.0
- mod_languages : 3.5.0
- mod_finder : 3.0.0
- mod_custom : 3.0.0
- mod_feed : 3.0.0
- mod_latest : 3.0.0
- mod_logged : 3.0.0
- mod_login : 3.0.0
- mod_menu : 3.0.0
- mod_popular : 3.0.0
- mod_quickicon : 3.0.0
- mod_status : 3.0.0
- mod_submenu : 3.0.0
- mod_title : 3.0.0
- mod_toolbar : 3.0.0
- mod_multilangstatus : 3.0.0
- mod_version : 3.0.0
- mod_stats_admin : 3.0.0
- mod_tags_popular : 3.1.0
- mod_tags_similar : 3.1.0
- mod_sampledata : 3.8.0
- plg_authentication_gmail : 3.0.0
- plg_authentication_joomla : 3.0.0
- plg_authentication_ldap : 3.0.0
- plg_content_contact : 3.2.2
- plg_content_emailcloak : 3.0.0
- plg_content_loadmodule : 3.0.0
- plg_content_pagebreak : 3.0.0
- plg_content_pagenavigation : 3.0.0
- plg_content_vote : 3.0.0
- plg_editors_codemirror : 5.38.0
- plg_editors_none : 3.0.0
- plg_editors_tinymce : 4.5.8
- plg_editors-xtd_article : 3.0.0
- plg_editors-xtd_image : 3.0.0
- plg_editors-xtd_pagebreak : 3.0.0
- plg_editors-xtd_readmore : 3.0.0
- plg_search_categories : 3.0.0
- plg_search_contacts : 3.0.0
- plg_search_content : 3.0.0
- plg_search_newsfeeds : 3.0.0
- plg_search_weblinks : 3.0.0
- plg_system_languagefilter : 3.0.0
- plg_system_p3p : 3.0.0
- plg_system_cache : 3.0.0
- plg_system_debug : 3.0.0
- plg_system_log : 3.0.0
- plg_system_redirect : 3.0.0
- plg_system_remember : 3.0.0
- plg_system_sef : 3.0.0
- plg_system_logout : 3.0.0
- plg_user_contactcreator : 3.0.0
- plg_user_joomla : 3.0.0
- plg_user_profile : 3.0.0
- plg_extension_joomla : 3.0.0
- plg_content_joomla : 3.0.0
- plg_system_languagecode : 3.0.0
- plg_quickicon_joomlaupdate : 3.0.0
- plg_quickicon_extensionupdate : 3.0.0
- plg_captcha_recaptcha : 3.4.0
- plg_system_highlight : 3.0.0
- plg_content_finder : 3.0.0
- plg_finder_categories : 3.0.0
- plg_finder_contacts : 3.0.0
- plg_finder_content : 3.0.0
- plg_finder_newsfeeds : 3.0.0
- plg_finder_weblinks : 3.0.0
- plg_finder_tags : 3.0.0
- plg_twofactorauth_totp : 3.2.0
- plg_authentication_cookie : 3.0.0
- plg_twofactorauth_yubikey : 3.2.0
- plg_search_tags : 3.0.0
- plg_quickicon_phpversioncheck : 3.7.0
- plg_editors-xtd_menu : 3.7.0
- plg_editors-xtd_contact : 3.7.0
- plg_system_fields : 3.7.0
- plg_fields_calendar : 3.7.0
- plg_fields_checkboxes : 3.7.0
- plg_fields_color : 3.7.0
- plg_fields_editor : 3.7.0
- plg_fields_imagelist : 3.7.0
- plg_fields_integer : 3.7.0
- plg_fields_list : 3.7.0
- plg_fields_media : 3.7.0
- plg_fields_radio : 3.7.0
- plg_fields_sql : 3.7.0
- plg_fields_text : 3.7.0
- plg_fields_textarea : 3.7.0
- plg_fields_url : 3.7.0
- plg_fields_user : 3.7.0
- plg_fields_usergrouplist : 3.7.0
- plg_content_fields : 3.7.0
- plg_editors-xtd_fields : 3.7.0
- plg_sampledata_blog : 3.8.0
- plg_system_sessiongc : 3.8.6
- isis : 1.0
- English (en-GB) : 3.8.13
- English (en-GB) : 3.8.13
- GermanDE : 3.8.13.1
- GermanDE : 3.8.13.1
- German (Germany) Language Pack : 3.8.13.1
- files_joomla : 3.8.13
- plg_installer_webinstaller : 1.1.1
- plg_editors_jce : 2.6.19
- COM_JCE : 2.6.19
- Widgetkit : 1.0.0
- Widgetkit Twitter : 1.0.0
- System - Widgetkit : 1.0.0
- Content - Widgetkit : 1.0.0
- System - Widgetkit ZOO : 3.1.0
- System - Widgetkit Joomla : 1.0.0
- widgetkit : 1.5.2
- PLG_SYSTEM_KMFASTRANS_PRO : 3.0.0-PRO
- KMFT Language Switcher : 3.0.0
- mod_kmftdashboard : 3.0.0
- mod_kmfttranslate : 3.0.0
- com_kmfastrans : 3.0.0-PRO
- Content - AddThis : 3.3.00
- Content - Iframe Plugin : 1.6+
- akeebabackup - de-DE : /Users/.../Projects/akeeba/backup/build/..
- Akeeba : 6.2.1
- plg_quickicon_akeebabackup : 1.0
- PLG_SYSTEM_AKEEBAUPDATECHECK_TITLE : 1.1
- PLG_SYSTEM_BACKUPONUPDATE_TITLE : 3.7
- Akeeba Backup package : 6.2.1
- plg_editors-xtd_module : 3.5.0
- PLG_INSTALLER_FOLDERINSTALLER : 3.6.0
- plg_installer_packageinstaller : 3.6.0
- PLG_INSTALLER_URLINSTALLER : 3.6.0
- plg_system_stats : 3.5.0
- plg_system_updatenotification : 3.5.0
- plg_content_jce : 2.6.19
- plg_extension_jce : 2.6.19
- plg_installer_jce : 2.6.19
- plg_quickicon_jce : 2.6.0-pro-beta3
- plg_system_jce : 2.6.19
- PKG_JCE : 2.6.19
- file_fef : 1.0.4
- FOF30 : 3.3.6
Additional comments
Fix that worked for me but seems hacky: edit libraries/src/Application/CMSApplication.php:369, change $options['app'] = $this; to $options['app'] = self;.
joomla-cms-bot
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Well, that's more or less what I did and what led me to the fix described in Additional comments:
Fix that worked for me but seems hacky: edit
libraries/src/Application/CMSApplication.php:369, change$options['app'] = $this;to$options['app'] = self;.
As this relevant code is in the joomla application, I thought it would belong here. As I do have a fix, I supposedly do not need the forum. I do not mind closing this issue if you think it is an irrelevant bug / related to some plugin combination.
The issue is related to how an extension is calling the getMenu() method of the application. Something is trying to call it in a static context (probably JSite::getMenu() or JApplicationSite::getMenu()), and static contexts do not have a $this variable. The correct way to call the method is generally JFactory::getApplication()->getMenu().
| Status | New | ⇒ | Closed |
| Closed_Date | 0000-00-00 00:00:00 | ⇒ | 2018-10-13 11:58:48 |
| Closed_By | ⇒ | BernhardWebstudio |
okay, I see, thanks very much!
The issue is related to how an extension is calling the
getMenu()method of the application. Something is trying to call it in a static context (probablyJSite::getMenu()orJApplicationSite::getMenu()), and static contexts do not have a$thisvariable. The correct way to call the method is generallyJFactory::getApplication()->getMenu().
God bless. It has been messing with my head for the last hour or so after updating to PHP 7.2
A bit hacky indeed but it solved the issue (entire site was not functioning).
Even though it's a logical fix, I hope that it won't cause any other issues down the road.
You should ask in a Joomla forum because that's not a Joomla core issue. If you speak German you can start here to narrow down the error source/extension:
https://forum.joomla.de/thread/6467-fehler-finden-durch-detailliertere-fehlermeldung-debug-modus-call-stack/