PHP function with unlimited number of parameters

Question

How do I write a function that can accept unlimited number of parameters?

What am trying to do is create a function within a class that wraps the following:

Answer 1

If you are using PHP 5.6 or later version, argument lists may include the ... token to denote that the function accepts a variable number of arguments. The arguments will be passed into the given variable as an array; Simply Using ... you can access unlimited variable arguments.

for example:

<?php
function sum(...$numbers) {
    $sum = 0;
    foreach ($numbers as $n) {
        $sum += $n;
    }
    return $sum ;
}

echo sum(1, 2, 3, 4, 5);
?>

If you are using PHP version <= 5.5 then you can access unlimited parameterusing the func_num_args(), func_get_arg(), and func_get_args() functions.

For example:

<?php
function foo()
{
    $numargs = func_num_args();
    echo "Number of arguments: $numargs \n";
    if ($numargs >= 2) {
        echo "Second argument is: " . func_get_arg(1) . "\n";
    }
    $arg_list = func_get_args();
    for ($i = 0; $i < $numargs; $i++) {
        echo "Argument $i is: " . $arg_list[$i] . "\n";
    }
}

foo(1, 2, 3);
?>

Answer 2

There is a function called func_get_args() which is an array of all arguments passed to the function.

Example from PHP.net

function foo()
{
    $numargs = func_num_args();
    echo "Number of arguments: $numargs<br />\n";
    if ($numargs >= 2) {
        echo "Second argument is: " . func_get_arg(1) . "<br />\n";
    }
    $arg_list = func_get_args();
    for ($i = 0; $i < $numargs; $i++) {
        echo "Argument $i is: " . $arg_list[$i] . "<br />\n";
    }
}

foo(1, 2, 3);

The above example will output:

Number of arguments: 3
Second argument is: 2
Argument 0 is: 1
Argument 1 is: 2
Argument 2 is: 3