note 116172 deleted from language.types.null by salathe

Note Submitter: naitsabes dot pawlak at gmail dot com ---- '==' is comparison operator which gives true if both sides are equal after type juggling. When you are comparing bool or null with anything, then both sides are converted to bool. So when you are comparing null with empty array or empty string, then null is converted to FALSE, empty string is converted to FALSE and empty array is converted to FALSE. array() == NULL '' == NULL both are converted to FALSE == FALSE which gives of course TRUE