Question

I need to go through $_POST, but I don’t know which indexes are used (i want to be able to update multiple users values(inputs have user ID as name). When I go through $_POST with foreach I’m getting the values, but I don’t know how to get user_id(index)

if(isset($_POST['credit_update'])){
foreach($_POST as $current){
}
}

i need to get index of $current

Answer 1

You can read all about foreach in the manual. Here is the specific syntax you are looking for:

foreach($_POST as $key => $current){
    //Do something
}

If you just want to update the array you can also get the element by reference in this way:

foreach($_POST as &$current){
    //If you update $current inside the loop
    //the element will be updated in the array
}