Igor Sydorenko questions

Igor Sydorenko answers

• unable to get jsonEncode in magento2
• I need custom tab for specific product type only not for all product type
• Collection::addAttributeToSelect() undefined method in Magento
• Magento Collection, how to obtain array of values of a particular field
• How can I save a PHP backtrace to the error log?
• Magento Grid - sortering and filtering works incorrectly after joining flat table to EAV