PHP 7 Latest Feature

New feature php7 - 1:  

                                * Spaceship Operator:

                                                - Spaceship Operator can be used in sorting and combined comparisons.

                                                                It works like strcmp() and version_compare().

                                                                - Example:

                                                                      - before php7

                                                                                              ($a < $b) ? -1 : (($a > $b) ? 1 :0);               

                                                                      - after php7       

                                                                                              $a <=> $b;                          

                                                                                               

                                * Create constant Array using define:                    

                                                - define('Cars', [ 'BMW', 'Audi', 'Volvo' ]);

                                                - In PHP5.X, you can only define array with const.

                                               

                                * intdiv() function:

                                                - it perform integer division of operands.

                                                Example:

                                                                $div = intdiv(5,2);

                                                                - it retuend 2;

                                                               

                                * Null Coalesce Operator:

                                                - This operator returns the first operand if exists or returns 'nobody'.

                                                Example:

                                                                $username = $_GET['user'] ?? 'guest';   

                                                               

                                * Closure::call() :

                                                - This is the new method added into core. It allows variable binding at call time rather pre-binding.