How to get function's parameters names in PHP?

Question

I\'m looking for a sort of reversed func_get_args(). I would like to find out how the parameters were named when function was defined. The reason for this is I don\

Answer 1

Code snippet that creates an array containing parameter names as keys and parameter values as corresponding values:

$ref = new ReflectionFunction(__FUNCTION__);

$functionParameters = [];
foreach($ref->getParameters() as $key => $currentParameter) {
    $functionParameters[$currentParameter->getName()] = func_get_arg($key);
}