获取上层函数名

Question

class ex {public function demo()
{
    $this->display();
}public function dispaly()
{
    // 我在这里要获取调用本方法的 demo 函数名，有什么办法？？
}}

Answer 1

class ex {
  public function demo() {
    $this->display();
  }
  public function display() {
    // 我在这里要获取调用本方法的 demo 函数名，有什么办法？？
    print_r(debug_backtrace());
  }
}
$p = new ex;
$p->demo();Array
(
    [0] => Array
        (
            [file] => D:\AMP\web\ide_tmp.php
            [line] => 5
            [function] => display
            [class] => ex
            [object] => ex Object
                (
                )            [type] => ->
            [args] => Array
                (
                )        )    [1] => Array
        (
            [file] => D:\AMP\web\ide_tmp.php
            [line] => 13
            [function] => demo
            [class] => ex
            [object] => ex Object
                (
                )            [type] => ->
            [args] => Array
                (
                )        ))