querydata.php

<?php

/**
 * Non PHP like querystring parser / container
 *
 * param1=foo&param2=bar&param1=baz
 * => array([param1] => array(foo, baz), [param2] => array(bar)
 */
class QueryData
{
    protected $_data;

    public function __construct($querystr = null)
    {
        if (is_null($querystr)) {
            $querystr = file_get_contents('php://input');
        }
        $data = array();
        $params = explode('&', $querystr);
        foreach ($params as $pair) {
            list ($key, $value) = array_map('urldecode', explode('=', $pair));
            if (!isset($data[$key])) {
                $data[$key] = array();
            }
            $data[$key][] = $value;
        }

        $this->_data = $data;
    }
    
    public function get($name, $default='')
    {
        if (isset($this->_data[$name][0])) {
            return $this->_data[$name][0];
        }
        return $default;
    }

    public function getlist($name)
    {
        if (isset($this->_data[$name])) {
            return $this->_data[$name];
        }
        return array();
    }

    public function getmulti($names)
    {
        $res = array();
        foreach ($names as $name) {
            $res[] = $this->get($name);
        }
        return $res;
    }

    public function checked($name, $value)
    {
        return in_array($value, $this->getlist($name));
    }
    
    public function all()
    {
        return $this->_data;
    }
}