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<?php
namespace JsonRPC\Validator;
use JsonRPC\Exception\ResponseEncodingFailureException;
/**
* Class JsonEncodingValidator
*
* @package JsonRPC\Validator
* @author Frederic Guillot
*/
class JsonEncodingValidator
{
public static function validate()
{
$jsonError = json_last_error();
if ($jsonError !== JSON_ERROR_NONE) {
switch ($jsonError) {
case JSON_ERROR_DEPTH:
$errorMessage = 'Maximum stack depth exceeded';
break;
case JSON_ERROR_STATE_MISMATCH:
$errorMessage = 'Underflow or the modes mismatch';
break;
case JSON_ERROR_CTRL_CHAR:
$errorMessage = 'Unexpected control character found';
break;
case JSON_ERROR_SYNTAX:
$errorMessage = 'Syntax error, malformed JSON';
break;
case JSON_ERROR_UTF8:
$errorMessage = 'Malformed UTF-8 characters, possibly incorrectly encoded';
break;
default:
$errorMessage = 'Unknown error';
break;
}
throw new ResponseEncodingFailureException($errorMessage, $jsonError);
}
}
}
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