PHP使用类获取文件名

Question

How do I find the name of a file using a class? For example: index.php

include 'class.php'
$class = new class();

How would you find the file (in this example index.php) inside of class.php?

Answer 1

$class = new MyClass();
$class->file = __FILE__;

You could pass it to the constructor if you define your class accordingly

class MyClass {

    public $file;

    public function __construct($file){
        $this->file = $file;
    }

$class = new MyClass(__FILE__);