PHP - runkit redefine method

Question

all my websites share a common starter, that deals with urls, file locations, etc.. There are 3 cases that need to be handled - is directory, file exists and file does not exist. Each application has unique code for each case. I decided to tinker with runkit a bit and I am trying to unify the code. Each case will be handled by a function, that could be redefined via runkit.

Consider this code:

class start {
   function __construct() {
       $this->options = array();
   }

   public function process() {
       // some code here
       $this->file_not_exists();
   }

   public function file_not_exists() {
       $this->options['page'] = 222;
   }

   public function redefine($what, $code) {
       runkit_method_redefine(get_class($this), $what, '', $code, RUNKIT_ACC_PUBLIC);
   }
}

$start = new start();

$start->redefine('file_not_exists', '$this->options["page"] = 333;')

//  page is now 333

This part works as intended. But when I try to change the code so the redefined method calls user function it works. But, for the love of god, I cant figure out how to pass the $this to the function.

Redefine method looks like this:

public function redefine($what, $code) {
    runkit_method_redefine(get_class($this), $what, '', 'call_user_func('.$code.'(), '.$this.');', RUNKIT_ACC_PUBLIC)
}

This doesn't work, no matter what I try (call_user_func_array as well). I just cant figure it out. For the record:

public function redefine($what, $code) {
    my_user_function($this);
}

Does work.

Any help is appreciated.

Note that this is just an experiment and I would like to know how to do this :)

Edit: I get:

Catchable fatal error: Object of class starter could not be converted to string in blablallala\rewrite_starter2.php on line 153

Answer 1

The documentation on the call_user_func function says that the first argument is ' callable '. So to call the class method dynamically, you should pass the array($obj, 'func_name') .

Answer 2

{... removed as not necessary ...}

==== EDIT =====

[For the new problem, what you need is this]

<?
class start {
   function __construct() {
       $this->options = array();
   }

   public function process() {
       // some code here
       $this->file_not_exists();
   }

   public function file_not_exists() {
       $this->options['page'] = 222;
   }

   public function redefine($what, $code) {
       runkit_method_redefine(get_class($this), 
       $what, 
       '', 
       'call_user_func(array($this,' .$code. '),$this);', 
       RUNKIT_ACC_PUBLIC);
   }

   public function my_func($someobj)
   {
        print_r($someobj);
   }
}


$start = new start();
$start->redefine('file_not_exists', 'my_func');

$start->process();

?>