Feature Php7 Php5 Performance Performance speed is double. Average requests per second are 44 when it is 22 in php5. Performance is low compared to php7. Return type You can declare the return type. Example – public function productName (int $id) : String { return “default”; } No provision for return type declaration Exception handling Major errors have been changed to exceptions making them easier to catch. To handle fatal errors was a difficult task for developers. Group use declaration Using the use of declarations makes the code more readable and compact. use pkg\utility\{ClassA, ClassB, ClassC as C}; Similarly, functions and constants can be declared using group use. Individual declarations for common namespaces. For example – use pkg\utility\ClassA; use pkg\utility\ClassB; use pkg\utility\ClassC; Support for 64-bit Supports 64-bit integers and large files. It doesn't support 64-bit integer. Anonymous class A developer can create an anonymous class for a one-off use, rather ...