/**
* Formats query string
*
* @param array $params
* @param boolean $skip_empty
* @param string $separator
* @return string
*/
public static function url_query($params = array(), $skip_empty = false, $separator = '&')
{
$str = '';
static $stack = array();
foreach ((array) $params as $key => $value) {
if ($skip_empty === true && empty($value)) {
continue;
}
array_push($stack, $key);
if (is_array($value)) {
if (count($value)) {
$str .= ($str != '' ? '&' : '') . Util_Environment::url_query($value, $skip_empty, $key);
}
} else {
$name = '';
foreach ($stack as $key) {
$name .= $name != '' ? '[' . $key . ']' : $key;
}
$str .= ($str != '' ? $separator : '') . $name . '=' . rawurlencode($value);
}
array_pop($stack);
}
return $str;
}
