encoding.php
public function getValue($key)
    {
        $values = array();
        foreach ($this->request as $pair) {
            if ($pair->isKey($key)) {
                $values[] = $pair->getValue();
            }
        }
        if (count($values) == 0) {
            return false;
        } elseif (count($values) == 1) {
            return $values[0];
        } else {
            return $values;
        }
    }
public function getValue($key)
    {
        $values = array();
        foreach ($this->request as $pair) {
            if ($pair->isKey($key)) {
                $values[] = $pair->getValue();
            }
        }
        if (count($values) == 0) {
            return false;
        } elseif (count($values) == 1) {
            return $values[0];
        } else {
            return $values;
        }
    }
Accessor for single value.

@return string/array    False if missing, string if present and array if multiple entries.