PHP, how to pass func-get-args values to another function as list of arguments?

Question

I want to create a function (my_function()) getting unlimited number of arguments and passing it into another function (call_another_function()).

function my_function() {    
   another_function($arg1, $arg2, $arg3 ... $argN);    
}

So, want to call my_function(1,2,3,4,5) and get calling another_function(1,2,3,4,5)

I know that I shoud use func_get_args() to get all function arguments as array, but I don't know how to pass this arguments to another function.

Thank you.

Can't you modify another_function to accept an array as parameter? — Aif
– Aif, Commented Jan 24, 2010 at 11:12

Community · Accepted Answer · 2020-06-20 09:12:55Z

56

Try call_user_func_array:

function my_function() {    
    $args = func_get_args();
    call_user_func_array("another_function", $args);
}

In programming and computer science, this is called an apply function.

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Jan 24, 2010 at 11:13

Brian McKenna

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4 Comments

fresch Over a year ago

Beware though, func_get_args cannot be used as parameter to another function! You need a temporary variable to capture the arguments first.

Brian McKenna Over a year ago

@Jordan, take a look at this question: stackoverflow.com/questions/4979507/…

kaiser Over a year ago

To sum it up, the temporary variable was only needed for PHP < 5.2.

Martin Braun Over a year ago

The callback seems to be interpreted eval-alike and call_user_func_array also returns the callback's result. $ret_value = call_user_func_array("MyClass::my_method", $args); works.

Pentium10 · Accepted Answer · 2010-01-24 11:12:21Z

11

Use call_user_func_array like

call_user_func_array('another_function', func_get_args());

answered Jan 24, 2010 at 11:12

Pentium10

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Comments

Community · Accepted Answer · 2023-11-20 22:45:59Z

1

It's not yet documented but you might use reflection API, especially invokeArgs.

(maybe I should have used a comment rather than a full post)

edited Nov 20, 2023 at 22:45

CommunityBot

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answered Jan 24, 2010 at 11:15

Aif

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2 Comments

Kirzilla Over a year ago

I've checked reflection API, but my OOP PHP is too poor to understand practical side of "reflection API". :(

Kirzilla Over a year ago

Here is the nice url tuxradar.com/practicalphp/16/4/0 that helped me to understand Reflection class.

D.Che · Accepted Answer · 2022-05-10 15:12:47Z

0

I have solved such a problem with the ...$args parameter in the function.

In my case, it was arguments forwarding to the parent construction call.

public function __construct(...$args)
{
    parent::__construct(...$args);
}

answered May 10, 2022 at 15:12

D.Che

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