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up vote -1 down vote favorite

Let's pretend this is happening inside of a class method (pure example):

public function runEvent($funcName, $params)
{
 $funcName($this, $params);
}

//somewhere else
function myFunc($anBOject, $paramsHere, $somethingElse = NULL)
{
 //do stuff
}

$SomeClassObj->runEvent('myFunc', array('dog', 'cat'));

Can I assume PHP will execute myFunc with the first parameter being $this, second being $params, and then NULL as the 3rd param (by default)?

This question is more just for understanding how PHP deals with variable functions. Im not actually having any issues in a certain project.

Thanks!

share|improve this question
3  
"Can I assume" -- can you just check it yourself? It would take couple of minutes –  zerkms Mar 18 '12 at 22:33
2  
Thought it would also be a good reference for anyone in the future who was thinking the same thing. –  Kovo Mar 18 '12 at 22:34
1  
if checking yourself takes less than asking a question - there is no reason to bother yourself and community, imho –  zerkms Mar 18 '12 at 22:40
    
you should also make sure you check the function exists before calling it and protect the script from injected code else you could have problems later on... –  Loz Cherone Mar 18 '12 at 22:49
1  
@MikeB it seems that there is already almost every PHP manual page here at SO.... no need to duplicate, solution is to query the database. –  Sampo Sarrala Oct 12 '12 at 20:26
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1 Answer

up vote 1 down vote accepted

Yes.

$funcName($this, $params);

is called exactly the same way as

myFunc($this, $params);

The first parameter is $this, the second $params, there's no third.

To call functions with a variable number of arguments, use call_user_func_array.

share|improve this answer
    
Perfect, thanks. –  Kovo Mar 18 '12 at 22:40
    
@zerkms figured it out before, and now future devs will be able to reference this post. Goal accomplished. –  Kovo Mar 18 '12 at 23:06
1  
@Kovo: there are already a bunch of similar questions here. Goal has been accomplished long ago stackoverflow.com/questions/7213825/… –  zerkms Mar 18 '12 at 23:10
    
@zerkms Cool story –  Kovo Mar 18 '12 at 23:21
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