正如我在对问题的评论中所说，您可以使用PHP内部ReflectionFunction 类以获取可调用的文件名。下面的代码应该是帮助您的良好开端。它需要更多的逻辑来确定回调，而且其中大部分都应该从Monitor类中抽象出来。我也没有编写代码来获得主题、插件、核心或其他可能从文件名中添加挂钩的名称。如果您知道添加挂钩的文件，那么这应该相对容易做到。

<?php
/**
 * Plugin Name:  Monitor
 */

namespace WPSE\\Monitor;

class Monitor {
  protected $callbacks = [];

  protected function addCallback( $callback ) {
    $this->callbacks[] = $callback;
  }

  public function shutdown() {
    var_dump( $this->callbacks );
  }

  public function monitor() {
    global $wp_filter;
    $name = \\current_filter();
    if( ! isset( $wp_filter[ $name ] ) ) {
      return;
    }

    $action = $wp_filter[ $name ];

    foreach ( $action->callbacks as $priority => $callbacks ) {
      foreach( $callbacks as $callback ) {
        try {
          if( \\is_array( $callback[ \'function\' ] ) ) {
            if( \\is_object( $callback[ \'function\' ][ 0 ] ) ) {
              $class = \\get_class( $callback[ \'function\' ][ 0 ] );
              $callback[ \'name\' ] = $class . \'->\' . $callback[ \'function\' ][ 1 ] . \'()\';
              $ref = new \\ReflectionMethod( $class, $callback[ \'function\' ][ 1 ] );
            }
            elseif( \\is_string( $callback[ \'function\' ][ 0 ] ) ) {
              $callback[ \'name\' ] = $callback[ \'function\' ][ 0 ] . \'::\' . $callback[ \'function\' ][ 1 ];
              $ref = new \\ReflectionMethod( $callback[ \'function\' ][ 0 ], $callback[ \'function\' ][ 1 ] );
            }
          }
          elseif( $callback[ \'function\' ] instanceOf Closure ) {
            $callback[ \'name\' ] = \'closure\';
            $ref = new \\ReflectionMethod( $callback[ \'function\' ] );
          }
          elseif( \\is_string( $callback[ \'function\' ] ) ) {
            $callback[ \'name\' ] = $callback[ \'function\' ] . \'()\';
            $ref = new \\ReflectionMethod( $callback[ \'name\' ] );
          }
          else{
            return;
          }

          $callback[ \'filename\' ] = $ref->getFileName();

          $this->addCallback( $callback );

        } catch( \\ReflectionException $e ) {
          $callback[\'error\'] = new \\WP_Error( \'reflection_exception\', $e->getMessage() );
        }
      }
    }
  }
}
class MonitorInit {

  private static $monitor;

  public static function init() {
    self::$monitor = new Monitor();
    \\add_action( \'all\', [ self::$monitor, \'monitor\' ] );
    \\add_action( \'shutdown\', [ self::$monitor, \'shutdown\' ] );
  }
}
\\add_action( \'plugins_loaded\', __NAMESPACE__ . \'\\MonitorInit::init\', 0 );