TP里面同一控制器下的一个操作方法如何调用另一个操作方法里面的变量？

Question

如果b里面想使用a里面的$time变量应该怎么办呢？

   public function a(){
      $time='1520452015';
      return $this->fetch();
   }
   public function b(){
     
   }

Answer 1

1. 把$time作为返回参数返回出去
2. 将$time设置为类变量$this->time

Answer 2

封装了解下

public $time = '1520452015';
public function a()
{
  $time = $this->time;
  return $this->fetch();
}
public function b()
{
    var_dump($this->time);
}

Answer 3

你可以把时间放在这个类的属性中 a修改了 b也可以读的到的

Answer 4

private $time = 'xxxxx';
public function a()
{
  $time = $this->time;
  return $this->fetch();
}
public function b()
{
    dump($this->time);
}


private static $time = 'xxxxx';
public function a()
{
  $time = self::$time;
  return $this->fetch();
}
public function b()
{
    dump(self::$time);
}