Question

为网站编写PHP代码时，更好的是：

<?php

  include ("myclass.php");
  $theClass = new MyClass();

  function x () {
    global $theClass;
    $theClass->theProperty="foo";
    $theClass->doStuff();
  }

  function y () {
    global $theClass;
    $theClass->theProperty="bar";
    $theClass->doStuff();form
  }

?>

或：

<?php

  include ("myclass.php");

  function x () {
    $theClass = new MyClass();
    $theClass->theProperty="foo";
    $theClass->doStuff ();
  }

  function y () {
    $theClass = new MyClass();
    $theClass->theProperty="bar";
    $theClass->doStuff ();
  }

?>

对于 $ theClass 的每个范围，上述哪一项更可取，哪些优缺点（如果有）？

Answer 1

更好的是DI：^）

  include ("myclass.php");

  function x (\MyClass $theClass) {
    $theClass->theProperty="foo";
    $theClass->doStuff ();
  }

  function y (\MyClass $theClass) {
    $theClass->theProperty="bar";
    $theClass->doStuff ();
  }

但这取决于......：^）

实例化PHP类的对象的本地或全局范围？

1 个答案: