A hook system question

[ds111]

Hello!

 

I have the following code, for example:

 

 

class Controller_test extends controller_template
{

           function action_index()
{
            $this->execute_hooks("action_index");

}

}

My execute_hooks function is this:

 

	if ( isset ( $this->hooks[$where] ) )
	{
		if (is_array($this->hooks[$where]))
		{
		    foreach($this->hooks[$where] as $key => $value)
		    {

		        $file        = $value['file'];
		        $function	 = $value['function'];

				require ( $file );

				$function()
		    }
		}
	}

This works correctly, however...I want something a bit more...

 

I want it to literally **add code to the function**

 

See the require( $file ); line?

Here's an example of a file:

 

 

<?php

function test()
{

    echo "Hi!";
}

?>

it calls the test() function, and echos "hi" in the correct place...

 

But what If I want to use some class-specific variable? It doesn't work.

 

I tried to literally read the file contents then return it to the execute_hooks() call, but that doesn't work.

 

So basically I want to turn this:

 

<?php
$this->execute_hooks("test");
?>

to this:

 

 

<?php
echo "hi!";

?>

How do i do it?

[laffin]

Just a thought, would ya need an empty function set first?

$function_code=null

 

than add the extra code to the function

$function_code.='echo "hello";';

 

than just continue adding more code as neccessary.

$function_code.='echo " world";';

 

than just create an anonymous function,

$func=create_function('',$a);

 

now the anonymous function can be called anytime with

$func();

 

but if ya want to, I suppose ya can bypass the creation of functions entirely, and use eval instead if you want an immediate return

[ignace]

In order to access object variables you need to pass the object reference ($this) to your function/object.

 

protected function _executeHooks($identifier) {
    if ($hooks = $this->_getRegisteredHooks($identifier) && $hooks->count()) {
        foreach ($hooks as $hook) {
            try {
                $this->_executeHook($hook);
            } catch(Exception $e) {/* In case an invalid hook would make it to the hooks ArrayObject */}
        }
    }
}

protected function _executeHook(Hook $hook) {
    $hook->execut($this);
}

protected function _getRegisteredHooks($identifier) {
    return $this->_hooks->offsetExists($identifier)
        ? $this->_hooks->offsetGet($identifier) : new ArrayObject(/* NullObject */);
}

 

This is ofcourse just an example and may differ depening on your OO design