动态调用/ init函数或变量

Question

仅仅是我的好奇心，我有一个有

的课程

class someCLass {

  var $_var1 = '';
  var $_var2 = '';

  public function _set(){}

  public function _get(){}

  public function _put(){}

}

是否可以动态调用此函数。例如：

public function insomefunc(){

    $key_sample = 'set';

    $result = $this->_$keysample(); //call dynamically a function which should be _set()

}

变量

的方式相同

public function insomefunc(){

    $var_sample = 'var1';

    $this->_$varsample = 'jackpot' //assign

}

想知道启发的答案。谢谢

Answer 1

您必须在字符串中添加“_”：

public function insomefunc(){

    $key_sample = 'set';

    $result = $this->{'_'.$keysample}(); //call dynamically a function which should be _set()

}

请参阅http://php.net/manual/en/functions.variable-functions.php

Answer 2

你可以这样做..

<?php
class someCLass
{

    var $_var1 = '';
    var $_var2 = '';

    public function set()
    {
        echo "I am set";
    }

    public function get()
    {
    }

    public function put()
    {
    }

    public function runset()
    {
        $key_sample = 'set';
        $this->$key_sample();
    }

}

$a = new someCLass();
$a->runset();

<强> OUTPUT :

I am set