[Skip to main content](#vessel-content) # Warning after update to 2.0 ## - **[TInkyWinky](/forum/user/51674-tinkywinky "View TInkyWinky's Profile")** - [![TInkyWinky's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/51674-tinkywinky "View TInkyWinky's Profile") Topic Author - [ Offline](/forum/user/51674-tinkywinky) Less More - Posts: 5 - Thank you received: 0 - - 9 years 2 weeks ago [\#281245](#281245) by [TInkyWinky](/forum/user/51674-tinkywinky "View TInkyWinky's Profile") *[Warning after update to 2.0](/forum/22-market-bug-report/892513-warning-after-update-to-2-0#281245 "-- HikaShop version -- : 3.2.1 -- HikaMarket version -- : 2.0 -- Joomla version -- : 3.8.1 -- PHP version -- : 7 -- Browser(s) name and version -- : Chrome -- Error-message(debug-mod must be tuned on) -- : Warning: Parameter 1 to plgHikamarketVendorlocationfilter::onBeforeVendorListingDisplay() expected to be a reference, value given in P:\Programs\XAMPP\htdocs\globaltest\libraries\joomla\event\event.php on line 70 Hi all, it's not a critical bug, it's just a new warning that came up after the upgrade to HikaMarket 2.0 and I wanted you to know. It's within the vendorlocationfilter Plugin. HikaShop Plugin has no warnings at all. :-) Regards, Fabio")* was created by *[TInkyWinky](/forum/user/51674-tinkywinky "View TInkyWinky's Profile")* -- HikaShop version -- : 3.2.1 -- HikaMarket version -- : 2.0 -- Joomla version -- : 3.8.1 -- PHP version -- : 7 -- Browser(s) name and version -- : Chrome -- Error-message(debug-mod must be tuned on) -- : Warning: Parameter 1 to plgHikamarketVendorlocationfilter::onBeforeVendorListingDisplay() expected to be a reference, value given in P:\Programs\XAMPP\htdocs\globaltest\libraries\joomla\event\event.php on line 70 Hi all, it's not a critical bug, it's just a new warning that came up after the upgrade to HikaMarket 2.0 and I wanted you to know. It's within the vendorlocationfilter Plugin. HikaShop Plugin has no warnings at all. ![:-)](/media/kunena/emoticons/3.png ":-)") Regards, Fabio Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzIyLW1hcmtldC1idWctcmVwb3J0Lzg5MjUxMy13YXJuaW5nLWFmdGVyLXVwZGF0ZS10by0yLTA/dG1wbD1tYXJrZG93bg==) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Jerome](/forum/user/80-jerome "View Jerome's Profile")** - [![Jerome's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar80.png)](/forum/user/80-jerome "View Jerome's Profile") - [ Offline](/forum/user/80-jerome) - HikaShop core developer Less More - Posts: 26400 - Thank you received: 4079 - - [](http://obsi.dev) - 9 years 2 weeks ago [\#281252](#281252) by [Jerome](/forum/user/80-jerome "View Jerome's Profile") Replied by *[Jerome](/forum/user/80-jerome "View Jerome's Profile")* on topic *[Warning after update to 2.0](/forum/22-market-bug-report/892513-warning-after-update-to-2-0#281252 "-- HikaShop version -- : 3.2.1 -- HikaMarket version -- : 2.0 -- Joomla version -- : 3.8.1 -- PHP version -- : 7 -- Browser(s) name and version -- : Chrome -- Error-message(debug-mod must be tuned on) -- : Warning: Parameter 1 to plgHikamarketVendorlocationfilter::onBeforeVendorListingDisplay() expected to be a reference, value given in P:\Programs\XAMPP\htdocs\globaltest\libraries\joomla\event\event.php on line 70 Hi all, it's not a critical bug, it's just a new warning that came up after the upgrade to HikaMarket 2.0 and I wanted you to know. It's within the vendorlocationfilter Plugin. HikaShop Plugin has no warnings at all. :-) Regards, Fabio")* Hello, I'm sorry but the function in the plugin is Code: public function onBeforeVendorListingDisplay(&$view, &$params) { And the trigger is called in one single file and its code is Code: JFactory::getApplication()->triggerEvent('onBeforeVendorListingDisplay', array(&$this, &$trigger_params)); So both are using a reference for the first parameter. I don't know if you have custom code but I cannot see the issue you're describing. Regards, --- Jerome - Obsidev.com HikaMarket & HikaSerial developer / HikaShop core dev team. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzIyLW1hcmtldC1idWctcmVwb3J0Lzg5MjUxMy13YXJuaW5nLWFmdGVyLXVwZGF0ZS10by0yLTA/dG1wbD1tYXJrZG93bg==) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[TInkyWinky](/forum/user/51674-tinkywinky "View TInkyWinky's Profile")** - [![TInkyWinky's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/51674-tinkywinky "View TInkyWinky's Profile") Topic Author - [ Offline](/forum/user/51674-tinkywinky) Less More - Posts: 5 - Thank you received: 0 - - 9 years 2 weeks ago [\#281266](#281266) by [TInkyWinky](/forum/user/51674-tinkywinky "View TInkyWinky's Profile") Replied by *[TInkyWinky](/forum/user/51674-tinkywinky "View TInkyWinky's Profile")* on topic *[Warning after update to 2.0](/forum/22-market-bug-report/892513-warning-after-update-to-2-0#281266 "-- HikaShop version -- : 3.2.1 -- HikaMarket version -- : 2.0 -- Joomla version -- : 3.8.1 -- PHP version -- : 7 -- Browser(s) name and version -- : Chrome -- Error-message(debug-mod must be tuned on) -- : Warning: Parameter 1 to plgHikamarketVendorlocationfilter::onBeforeVendorListingDisplay() expected to be a reference, value given in P:\Programs\XAMPP\htdocs\globaltest\libraries\joomla\event\event.php on line 70 Hi all, it's not a critical bug, it's just a new warning that came up after the upgrade to HikaMarket 2.0 and I wanted you to know. It's within the vendorlocationfilter Plugin. HikaShop Plugin has no warnings at all. :-) Regards, Fabio")* Hello Jerome, thanks again for your quick reply. You're totally right here, the call that seems to make problems is event.php in joomla libraries. I did do some modifications, that's why I also tried on a clean installation. Same issue. I'm not a php developer and I'm currently digging myself into this. I now think it's probably not a HikaShop issue but I thought maybe you'd see the issue right away. The call which produces the warning is following: Code: return call_user_func_array(array($this, $event), $args); $args should be an array reference as here is the complete code snippet Code: /** * Method to trigger events. * The method first generates the even from the argument array. Then it unsets the argument * since the argument has no bearing on the event handler. * If the method exists it is called and returns its return value. If it does not exist it * returns null. * * @param array &$args Arguments * * @return mixed Routine return value * * @since 11.1 */ public function update(&$args) { // First let's get the event from the argument array. Next we will unset the // event argument as it has no bearing on the method to handle the event. $event = $args['event']; unset($args['event']); /* * If the method to handle an event exists, call it and return its return * value. If it does not exist, return null. */ if (method_exists($this, $event)) { return call_user_func_array(array($this, $event), $args); } } As I already said I'm a newbie in php. I tried to pass &$args instead of $args, but this resulted in an invalid php file. I'd appreciate any quick suggestion how to approach such a happening. Best Regards, Fabio Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzIyLW1hcmtldC1idWctcmVwb3J0Lzg5MjUxMy13YXJuaW5nLWFmdGVyLXVwZGF0ZS10by0yLTA/dG1wbD1tYXJrZG93bg==) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Jerome](/forum/user/80-jerome "View Jerome's Profile")** - [![Jerome's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar80.png)](/forum/user/80-jerome "View Jerome's Profile") - [ Offline](/forum/user/80-jerome) - HikaShop core developer Less More - Posts: 26400 - Thank you received: 4079 - - [](http://obsi.dev) - 9 years 2 weeks ago [\#281275](#281275) by [Jerome](/forum/user/80-jerome "View Jerome's Profile") Replied by *[Jerome](/forum/user/80-jerome "View Jerome's Profile")* on topic *[Warning after update to 2.0](/forum/22-market-bug-report/892513-warning-after-update-to-2-0#281275 "-- HikaShop version -- : 3.2.1 -- HikaMarket version -- : 2.0 -- Joomla version -- : 3.8.1 -- PHP version -- : 7 -- Browser(s) name and version -- : Chrome -- Error-message(debug-mod must be tuned on) -- : Warning: Parameter 1 to plgHikamarketVendorlocationfilter::onBeforeVendorListingDisplay() expected to be a reference, value given in P:\Programs\XAMPP\htdocs\globaltest\libraries\joomla\event\event.php on line 70 Hi all, it's not a critical bug, it's just a new warning that came up after the upgrade to HikaMarket 2.0 and I wanted you to know. It's within the vendorlocationfilter Plugin. HikaShop Plugin has no warnings at all. :-) Regards, Fabio")* Hello, So if it's related to Joomla itself ; you should report the warning to Joomla. There is nothing I can do in HikaMarket since it using the same code than in the Joomla core : [ github.com/joomla/joomla-cms/blob/bcf386...oduleHelper.php#L272](https://github.com/joomla/joomla-cms/blob/bcf3868230408c7f91c1bb73b1c5990668667fa8/libraries/src/Helper/ModuleHelper.php#L272) [ github.com/joomla/joomla-cms/blob/6e07ca...ls/searches.php#L151](https://github.com/joomla/joomla-cms/blob/6e07ca6fadd8a5d1db3337cf0357d782646f5411/administrator/components/com_search/models/searches.php#L151) [ github.com/joomla/joomla-cms/blob/7ab744...pers/fields.php#L459](https://github.com/joomla/joomla-cms/blob/7ab744f7b320cf4334b28a69615b292bfc8747a7/administrator/components/com_fields/helpers/fields.php#L459) ( etc ) Regards, --- Jerome - Obsidev.com HikaMarket & HikaSerial developer / HikaShop core dev team. 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