(PHP 7, PHP 8)
ReflectionGenerator::getThis — Gets the $this value of the generator
   Get the $this value that the generator has access to.
  
此函数没有参数。
   Returns the $this value, or null if the generator was
   not created in a class context.
  
示例 #1 ReflectionGenerator::getThis() example
<?php
class GenExample
{
    public function gen()
    {
        yield 1;
    }
}
$gen = (new GenExample)->gen();
$reflectionGen = new ReflectionGenerator($gen);
var_dump($reflectionGen->getThis());
以上例程的输出类似于:
object(GenExample)#3 (0) {
}