Question

Given the function bar takes a variable number of arguments. How can foo be implemented?

function foo($a, $b, $c) {
    return bar($a, $b, $c[0], $c[1], $c[2], ..., $c[n]);
}

Answer 1

call_user_func_array allows you to call a function with an array of parameters. Create the parameter array and call the function:

$parameters = array_merge(array($a, $b), $c);
return call_user_func_array('bar', $parameters);