PHP:遍历所有对象方法(调用对象中的所有方法)

Question

在 PHP 中，有没有办法以编程方式调用对象的所有方法？

我有一个充满方法的对象，其中包含 HTML 片段:

class Example {

   public function introduction(){

     ?>

     <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }

  public function step_one(){

     ?>

     <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }

  Etc...
}

有没有办法在循环中按顺序调用所有这些方法？还是我必须直呼他们的名字？

Answer 1

如果您不知道所述类中将有多少方法，但您知道每个方法名称的基础。然后你可以像这样遍历它们:

<?php
class Example {

   public static function loop() {
    self::introduction();
    $name = "step_one";
    $int = 2;
    $formater = new NumberFormatter("en", NumberFormatter::SPELLOUT);
    while (true) {
        if (method_exists(get_class(), $name)) {
            self::$name();
            $number = $formater->format($int);
            $name = "step_" . $number;
            $int ++;
        }
        else {
            break;
        }
    }
   }

   public static function introduction(){

     ?>

     <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }

  public static function step_one(){

     ?>

     <p>1Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }

    public static function step_two(){

     ?>

     <p>2Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }
    public static function step_three(){

     ?>

     <p>3Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }
}
Example::loop();
?>

或者你可以像这样按照声明的顺序循环遍历它们:

<?php
class Example {

   public function loop() {
    $methods = get_class_methods(get_class());
    foreach ($methods as $method) {
      if ($method != "loop") {
        $this->$method();
      }
    }
   }

   public function introduction(){

     ?>

     <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }

  public function step_one(){

     ?>

     <p>1Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }

    public function step_two(){

     ?>

     <p>2Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }
    public function step_three(){

     ?>

     <p>3Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

     <?php

  }
}
$a = new Example();
$a->loop();
?>