javascript - IIFE (Immediately Invoked Function Expression) in PHP? -

i wonder if php has equivalence of iife (immediately invoked function expression) of javascript. can php closure written anyhow can work javascript (invoking, dependency, injection, directive) ?

(function(){     mymodule = angular.module('myangularapplication', []); }()); 

this expression above known invoked function expression(iife). since function definition invoke whenever .js file loaded. main reason iife effective can have code executing without needing have global variables , functions. when this, our controller creation fail using global variable create controller module. circumvent problem lets use getter function angular.module associate controller module. , while @ it, why not put controller in iife too.

(function () {      var bookscontroller = function ($scope) {          $scope.message = "hello bookscontroller";     }      angular.module('myangularapplication').controller('bookscontroller', bookscontroller);  }()); 

source: http://www.codeproject.com/articles/995498/angular-tutorial-part-understanding-modules-and thank you.

in php 7, yes, can:

(function() { echo "yes, works in php 7.\n"; })(); 

this not work in php 5.x. instead, closest can come is:

call_user_func(function() { echo "this works too\n"; });