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$data = (string)$data;

$encoding = mb_detect_encoding($data);

if($encoding == 'UTF-8') {
	$data = preg_replace('/[^(\x20-\x7F)]*/','',$data);
	$data = preg_replace('#\\\\x[0-9a-fA-F]{2,2}#','',$data);
}

$data = json_decode($data);

if (function_exists( 'json_last_error' )) {
	switch (json_last_error()) {
		case JSON_ERROR_NONE:
			$this->log('validateJsonDecode() - No json decode errors');
		break;
		case JSON_ERROR_DEPTH:
			$this->log('validateJsonDecode() - Maximum stack depth exceeded');
		break;
		case JSON_ERROR_STATE_MISMATCH:
			$this->log('validateJsonDecode() - Underflow or the modes mismatch');
		break;
		case JSON_ERROR_CTRL_CHAR:
			$this->log('validateJsonDecode() - Unexpected control character found');
		break;
		case JSON_ERROR_SYNTAX:
			$this->log('validateJsonDecode() - Syntax error, malformed JSON');
		break;
		case JSON_ERROR_UTF8:
			$this->log('validateJsonDecode() - Malformed UTF-8 characters, possibly incorrectly encoded');
		break;
		default:
			$this->log('validateJsonDecode() - Unknown error');
		break;
	}
}else{
	$this->log('validateJsonDecode() - json_last_error PHP function does not exist');
}

return $data;