I like creating my PHP functions using key=>value pairs (arrays) as arguments instead of individual parameters.
For example, I prefer:
function useless_
@Mike, you could also "extract()" your $params argument into local variables, like this:
// Class will tokenize a string based on params
public static function tokenize(array $params)
{
extract($params);
// Validate required elements
if (!isset($value)) {
throw new Exception(sprintf('Invalid $value: %s', serialize($params)));
}
// Localize optional elements
$value = isset($value) ? $value : '';
$separator = isset($separator) ? $separator] : '-';
$urlEncode = isset($urlEncode) ? $urlEncode : false;
$allowedChars = isset($allowedChars) ? $allowedChars : array();
$charsToRemove = isset($charsToRemove) ? $charsToRemove : array();
....
Same implementation, but shorter.