Calling methods from within objects (not $this->method())

[d-Pixie]

Posted a few days ago trying to get some clarity in how to use objects. Now I have some, but not enough ...

Simple setup (logicaly), two objects: Mysql and User. The mysql object has a methos, query, that, you guessed it, querys a mysql database. The User object has a function to list all currently registerd users.

Now, the calling order is as follows:

1. $user->list() ... In the method 'list' is an internal function called format(). The format function takes a post from the db and formates it nicely and prints it.

2. The user->list function calls mysql->query() with two variables. The first is the actual query to be exec, the other is a refrence to list:s internal function format.

3. The mysql->query method calls up a query and for each row it uses the refrenced function from user->list (format()) to output (or otherwice handel the information)...

Now that was the theory. I hav a stripped down version of the code just to get the calling-a-method-from-another-object-code working. It's not however and I cant seam to find ANY information on how to call the damn method from another object.

This I have tryed:

//$this is the object 'list'
//$mtest is the 'mysql' object
//$this->Queryfunc holds the string "mtest->hello" (should work)
//at least it works with normal functions...

$this->Queryfunc("Refrence");
$mtest->hello("Direct");
call_user_func(array(&$mtest, "hello"),"Call_User_Func");
call_user_method("hello",&$mtest,"Call_User_Method");

None of this works from within the object .. All calls work from outside ... I'm just so stuck. Sure I can think of several ways to solve the problem using other solutions, but I'm damned if I have to give up on this one ;o)

Bottomline: It should work, but somewere i fucked up. In the theory or in the code I dont know ....

Code in full:

<?php

class test
{
function hello($text)
{
echo $text;
return 0;
}
}

class user
{
var $Queryfunc;
var $Printfunc;

function printlist()
{
	function out()
	{
		echo "Hello from out...";
	}
	$this->Printfunc = &out();
	echo ("<br><br>Hello from printlist...<br>Queryfunc are: ".$this->Queryfunc."!");
	$this->Queryfunc("Refrence");
	$mtest->hello("Direct");
	call_user_func(array(&$mtest, "hello"),"Call_User_Func");
	call_user_method("hello",&$mtest,"Call_User_Method");
}

}

$bar = new user;

$foo = "mtest"; //foo innehåller ett namn X
${$foo} = new test; //ett nytt objekt skapas med namnet X

$bar->Queryfunc = $foo."->hello";

echo ("<br><br>Queryfunc: ".$bar->Queryfunc."<br>");

$bar->printlist();

?>

The result of calling the code can be found @: http://plikt.sverok.net/class_test-php .. Sorry about the messy code. To many rewrites ...

[diego25]

The code you posted never creates the object $mtest! This worked for me:

<?php

class test
{
function hello($text)
{
echo "Inside Hello: " . $text . "\n";
return 0;
}
}

class user
{
var $Queryfunc;
var $Printfunc;

function printlist()
{
function out()
{
echo "Hello from out...\n";
}
$mtest = new test();
$this->Printfunc = &out();
echo ("\n\nHello from printlist...\nQueryfunc are: ".$this->Queryfunc."!");
//${$this->Queryfunc}("Refrence");
$mtest->hello("Direct");
call_user_func(array(&$mtest, "hello"),"Call_User_Func");
//call_user_method("hello",&$mtest,"Call_User_Method");
}
}

$bar = new user;

$foo = "mtest"; //foo innehåller ett namn X
${$foo} = new test; //ett nytt objekt skapas med namnet X

$bar->Queryfunc = $foo."->hello";

echo ("\n\nQueryfunc: ".$bar->Queryfunc."\n");

$bar->printlist();


?> 

Diego