argument list in an array

[NancyJ]

Ok say I have a function foo

function foo($arg1='', $arg2='', $arg3='')
{
}


But the data I need to pass into the function are in a numerical array. Now in this situation I could just do

foo($array[0], $array[1], $array[2});


But what if I have another function bar that takes 5 parameters and what if I don't know how many elements will be in the array - I can count them and I can count the number of arguments a function needs, BUT how do I then pass them into the function (which fwiw is also variable)... without using eval.

[oesxyl]

Ok say I have a function foo

function foo($arg1='', $arg2='', $arg3='')
{
}


But the data I need to pass into the function are in a numerical array. Now in this situation I could just do

foo($array[0], $array[1], $array[2});


But what if I have another function bar that takes 5 parameters and what if I don't know how many elements will be in the array - I can count them and I can count the number of arguments a function needs, BUT how do I then pass them into the function (which fwiw is also variable)... without using eval.
it's not clear to me, I mean the problem is to general to talk about a solution, or I don't understand what you want.

I guess some answer you could find here:

http://www.php.net/manual/en/book.funchand.php

seems stupid but could be usefull if you don't already know about, :)

http://www.php.net/manual/en/language.variables.variable.php
http://www.php.net/manual/en/functions.variable-functions.php

You need something like that?

<?php

function f1($v){
echo $v;
}

function f2($a){
$f = $a[0];
$f($a[1]);
}

$a = array("f1", "hello world");
f2($a);

?>


I hope that help.

best regards

[NancyJ]

call_user_func_array does exactly what I want except that the function is actually a method of an object.

[oesxyl]

call_user_func_array does exactly what I want except that the function is actually a method of an object.
I guess you can use global an a wrapper:


$myobj = new MyClass();

function cufa($par){
global $myobj;
$myobj->mymeth($par);
}

$result = call_user_func_array("cufa", $param);


I'm not sure if you really need to use global, but I guess you need, make some test.


I'm idiot some times, :)

You can use methods as callback function:

http://www.php.net/manual/en/language.pseudo-types.php#language.types.callback

regards

[NancyJ]

You know, I thought about clicking on the callback types link but then I didn't for some reason. Excellent