PHP function parameters from a string

Question

How do I make a truely dynamic function with dynamic parameters call? The documentation and examples I've found all assume you have only 1 parameter. I would like to have multiple parameters, example:

class Object {
    function A($p1) {}
    function B($p1,$p2) {}
}

$obj = new Object();
$function = "B";
$params = "'foo', 'me'";

$obj->$function($params);

calling $function = "A" will be fine as $params is treated as a string. I've tried

$obj->$function(explode(',',$params));

for $function="B" but it does not work as explode simply returns an array and thus function B has a missing parameter.

Any idea?

For my usage, I'm writing a model loader. It enables us to load any model and execute it without specifying specific model in the code. Similar to Java's dependency injection. — cfoo
– cfoo, Commented May 20, 2011 at 20:07

Jacob Relkin · Accepted Answer · 2011-05-20 17:43:50Z

3

You will need to use call_user_func_array and str_getcsv

call_user_func_array(array($obj, "B"), str_getcsv($params));

answered May 20, 2011 at 17:43

Jacob Relkin

163k34 gold badges351 silver badges321 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Nick Over a year ago

@cfoo Accepting an answer is important as it both rewards posters for solving your problem and informs others that your issue is resolved. For more information, please see meta.stackexchange.com/questions/5234/…

NullUserException · Accepted Answer · 2011-11-13 16:41:57Z

1

You can use the call_user_func_array() function as follows:

call_user_func_array(array($obj, $function), explode(',', $params));

edited Nov 13, 2011 at 16:41

NullUserException

85.8k31 gold badges212 silver badges239 bronze badges

answered May 20, 2011 at 17:42

Nick

6,9752 gold badges36 silver badges58 bronze badges

Collectives™ on Stack Overflow

PHP function parameters from a string

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related