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ঢাকা মহানগরের পরিবেশ দূষণ: একটি পর্যালোচনা
| বাংলাদেশ লোক-প্রশাসন পত্রিকা
Fatal error : Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, int given in /var/www/html/ojs34/lib/pkp/classes/statistics/PKPStatisticsHelper.php:214
Stack trace:
#0 /var/www/html/ojs34/lib/pkp/classes/statistics/PKPStatisticsHelper.php(214): array_key_exists()
#1 /var/www/html/ojs34/lib/pkp/classes/statistics/PKPStatisticsHelper.php(171): PKP\statistics\PKPStatisticsHelper->getLocation()
#2 /var/www/html/ojs34/lib/pkp/classes/observers/listeners/LogUsageEvent.php(139): PKP\statistics\PKPStatisticsHelper->getGeoData()
#3 /var/www/html/ojs34/lib/pkp/classes/observers/listeners/LogUsageEvent.php(53): PKP\observers\listeners\LogUsageEvent->prepareUsageEvent()
#4 /var/www/html/ojs34/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(441): PKP\observers\listeners\LogUsageEvent->handle()
#5 /var/www/html/ojs34/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(249): Illuminate\Events\Dispatcher->Illuminate\Events\{closure}()
#6 /var/www/html/ojs34/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(451): Illuminate\Events\Dispatcher->dispatch()
#7 /var/www/html/ojs34/pages/article/ArticleHandler.php(356): event()
#8 [internal function]: APP\pages\article\ArticleHandler->view()
#9 /var/www/html/ojs34/lib/pkp/classes/core/PKPRouter.php(334): call_user_func()
#10 /var/www/html/ojs34/lib/pkp/classes/core/PKPPageRouter.php(278): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest()
#11 /var/www/html/ojs34/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPPageRouter->route()
#12 /var/www/html/ojs34/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch()
#13 /var/www/html/ojs34/index.php(21): PKP\core\PKPApplication->execute()
#14 {main}
thrown in /var/www/html/ojs34/lib/pkp/classes/statistics/PKPStatisticsHelper.php on line 214 
