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<?php
namespace Commercetools\Core\Request\Query;
use Commercetools\Core\Error\InvalidArgumentException;
use Commercetools\Core\Error\Message;
class Parameter implements ParameterInterface
{
protected $key;
protected $value;
public function __construct($key, $value = null)
{
if (empty($key)) {
throw new InvalidArgumentException(Message::NO_KEY_GIVEN);
}
$this->key = $key;
$this->value = $value;
}
public function getId()
{
return $this->key;
}
public function getValue()
{
return $this->value;
}
public function __toString()
{
$value = $this->getValue();
if (is_null($value)) {
$paramStr = $this->key;
} elseif (is_bool($value)) {
$paramStr = $this->key . '=' . ($value ? 'true' : 'false');
} else {
$paramStr = $this->key . '=' . urlencode((string)$value);
}
return $paramStr;
}
}