是否支持在php 7中引用傳遞？

Question

最近我們遷移PHP 5.6到PHP 7

，現在下面的代碼拋出$this->a =& new test($this->f);

Parse error: syntax error, unexpected 'new' (T_NEW) 

什麼想法？我可以用它做什麼改變？

Answer 1

作爲每PHP7不兼容的改變：http://php.net/manual/en/migration70.incompatible.php

New objects cannot be assigned by reference

The result of the new statement can no longer be assigned to a variable by reference: <?php class C {} $c =& new C; ?>

Output of the above example in PHP 5:

Deprecated: Assigning the return value of new by reference is deprecated in /tmp/test.php on line 3

Output of the above example in PHP 7:

Parse error: syntax error, unexpected 'new' (T_NEW) in /tmp/test.php on line 3

沒有替代。您使用的是不推薦的行爲，現在它不再是有效的PHP。根本不要參照分配。

Answer 2

澄清馬克·B的回答：只是刪除符號這樣

$this->a = new test($this->f);