How to get a subset of $_POST array with keys starting with a prefix

Question

Let\'s say my $_POST variable looks like:

 65
    [action] => editpost
    [originalaction] => editpo         


        

Answer 1

function GetPrefixedItemsFromArray($array, $prefix)
{
    $keys = array_keys($array);
    $result = array();

    foreach ($keys as $key)
    {
        if (strpos($key, $prefix) === 0)
        {
            $result[$key] = $array[$key];
        }
    }

    return $result;
}

Then simply call with $myArray = GetPrefixedItemsFromArray($_POST, "empl_");.