@@ -38,11 +38,13 @@ class JWT
3838    /** 
3939     * Decodes a JWT string into a PHP object. 
4040     * 
41-      * @param string      $jwt           The JWT 
42-      * @param string|Array|null $key     The secret key, or map of keys 
43-      * @param Array       $allowed_algs  List of supported verification algorithms 
41+      * @param string            $jwt            The JWT 
42+      * @param string|array|null $key            The key, or map of keys. 
43+      *                                          If the algorithm used is asymmetric, this is the public key 
44+      * @param array             $allowed_algs   List of supported verification algorithms 
45+      *                                          Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256' 
4446     * 
45-      * @return object       The JWT's payload as a PHP object 
47+      * @return object The JWT's payload as a PHP object 
4648     * 
4749     * @throws DomainException              Algorithm was not provided 
4850     * @throws UnexpectedValueException     Provided JWT was invalid 
@@ -120,13 +122,15 @@ public static function decode($jwt, $key = null, $allowed_algs = array())
120122    /** 
121123     * Converts and signs a PHP object or array into a JWT string. 
122124     * 
123-      * @param object|array $payload PHP object or array 
124-      * @param string       $key     The secret key 
125-      * @param string       $alg     The signing algorithm. Supported 
126-      *                              algorithms are 'HS256', 'HS384' and 'HS512' 
127-      * @param array        $head    An array with header elements to attach 
125+      * @param object|array  $payload    PHP object or array 
126+      * @param string        $key        The secret key. 
127+      *                                  If the algorithm used is asymmetric, this is the private key 
128+      * @param string        $alg        The signing algorithm. 
129+      *                                  Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256' 
130+      * @param array         $head       An array with header elements to attach 
131+      * 
132+      * @return string A signed JWT 
128133     * 
129-      * @return string      A signed JWT 
130134     * @uses jsonEncode 
131135     * @uses urlsafeB64Encode 
132136     */ 
@@ -153,12 +157,13 @@ public static function encode($payload, $key, $alg = 'HS256', $keyId = null, $he
153157    /** 
154158     * Sign a string with a given key and algorithm. 
155159     * 
156-      * @param string $msg          The message to sign 
157-      * @param string|resource $key The secret key 
158-      * @param string $alg       The signing algorithm. Supported algorithms 
159-      *                               are 'HS256', 'HS384', 'HS512' and 'RS256' 
160+      * @param string            $msg    The message to sign 
161+      * @param string|resource   $key    The secret key 
162+      * @param string            $alg    The signing algorithm. 
163+      *                                  Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256' 
164+      * 
165+      * @return string An encrypted message 
160166     * 
161-      * @return string          An encrypted message 
162167     * @throws DomainException Unsupported algorithm was specified 
163168     */ 
164169    public  static  function  sign ($ msg$ key$ alg'HS256 ' )
@@ -182,13 +187,16 @@ public static function sign($msg, $key, $alg = 'HS256')
182187    }
183188
184189    /** 
185-      * Verify a signature with the mesage , key and method. Not all methods 
190+      * Verify a signature with the message , key and method. Not all methods 
186191     * are symmetric, so we must have a separate verify and sign method. 
187-      * @param string $msg the original message 
188-      * @param string $signature 
189-      * @param string|resource $key for HS*, a string key works. for RS*, must be a resource of an openssl public key 
190-      * @param string $alg 
192+      * 
193+      * @param string            $msg        The original message (header and body) 
194+      * @param string            $signature  The original signature 
195+      * @param string|resource   $key        For HS*, a string key works. for RS*, must be a resource of an openssl public key 
196+      * @param string            $alg        The algorithm 
197+      * 
191198     * @return bool 
199+      * 
192200     * @throws DomainException Invalid Algorithm or OpenSSL failure 
193201     */ 
194202    private  static  function  verify ($ msg$ signature$ key$ alg
@@ -229,7 +237,8 @@ private static function verify($msg, $signature, $key, $alg)
229237     * 
230238     * @param string $input JSON string 
231239     * 
232-      * @return object          Object representation of JSON string 
240+      * @return object Object representation of JSON string 
241+      * 
233242     * @throws DomainException Provided string was invalid JSON 
234243     */ 
235244    public  static  function  jsonDecode ($ input
@@ -263,7 +272,8 @@ public static function jsonDecode($input)
263272     * 
264273     * @param object|array $input A PHP object or array 
265274     * 
266-      * @return string          JSON representation of the PHP object or array 
275+      * @return string JSON representation of the PHP object or array 
276+      * 
267277     * @throws DomainException Provided object could not be encoded to valid JSON 
268278     */ 
269279    public  static  function  jsonEncode ($ input
@@ -331,6 +341,7 @@ private static function handleJsonError($errno)
331341     * Get the number of bytes in cryptographic strings. 
332342     * 
333343     * @param string 
344+      * 
334345     * @return int 
335346     */ 
336347    private  static  function  safeStrlen ($ str
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