Refactored translation of exception messages

lib/Exception/JsonException.php

@@ -0,0 +1,37 @@
+<?php declare(strict_types=1);
+/**
+ * PrivateBin
+ *
+ * a zero-knowledge paste bin
+ *
+ * @link      https://github.com/PrivateBin/PrivateBin
+ * @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
+ * @license   https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
+ */
+
+namespace PrivateBin\Exception;
+
+use Exception;
+
+/**
+ * JsonException
+ *
+ * An Exception representing JSON en- or decoding errors.
+ */
+class JsonException extends Exception
+{
+    /**
+     * Exception constructor with mandatory JSON error code.
+     *
+     * @access public
+     * @param  int $code
+     */
+    public function __construct(int $code) {
+        $message = 'A JSON error occurred';
+        if (function_exists('json_last_error_msg')) {
+            $message .= ': ' . json_last_error_msg();
+        }
+        $message .= ' (' . $code . ')';
+        parent::__construct($message, 90);
+    }
+}