code style

phpdoc fix
isset to array_key_exists

src/php/lib/Grpc/AbstractCall.php

@@ -34,8 +34,15 @@
 
 namespace Grpc;
 
+/**
+ * Class AbstractCall
+ * @package Grpc
+ */
 abstract class AbstractCall
 {
+    /**
+     * @var Call
+     */
     protected $call;
     protected $deserialize;
     protected $metadata;
@@ -51,13 +58,15 @@ abstract class AbstractCall
      *                              the response
      * @param array    $options     Call options (optional)
      */
-    public function __construct(Channel $channel,
-                                $method,
-                                $deserialize,
-                                $options = [])
-    {
-        if (isset($options['timeout']) &&
-            is_numeric($timeout = $options['timeout'])) {
+    public function __construct(
+        Channel $channel,
+        $method,
+        $deserialize,
+        $options = []
+    ) {
+        if (array_key_exists('timeout', $options) &&
+            is_numeric($timeout = $options['timeout'])
+        ) {
             $now = Timeval::now();
             $delta = new Timeval($timeout);
             $deadline = $now->add($delta);
@@ -68,17 +77,19 @@ abstract class AbstractCall
         $this->deserialize = $deserialize;
         $this->metadata = null;
         $this->trailing_metadata = null;
-        if (isset($options['call_credentials_callback']) &&
+        if (array_key_exists('call_credentials_callback', $options) &&
             is_callable($call_credentials_callback =
-                        $options['call_credentials_callback'])) {
+                $options['call_credentials_callback'])
+        ) {
             $call_credentials = CallCredentials::createFromPlugin(
-                $call_credentials_callback);
+                $call_credentials_callback
+            );
             $this->call->setCredentials($call_credentials);
         }
     }
 
     /**
-     * @return The metadata sent by the server.
+     * @return mixed The metadata sent by the server.
      */
     public function getMetadata()
     {
@@ -86,7 +97,7 @@ abstract class AbstractCall
     }
 
     /**
-     * @return The trailing metadata sent by the server.
+     * @return mixed The trailing metadata sent by the server.
      */
     public function getTrailingMetadata()
     {
@@ -114,7 +125,7 @@ abstract class AbstractCall
      *
      * @param string $value The binary value to deserialize
      *
-     * @return The deserialized value
+     * @return mixed The deserialized value
      */
     protected function deserializeResponse($value)
     {

src/php/lib/Grpc/BidiStreamingCall.php

@@ -45,7 +45,7 @@ class BidiStreamingCall extends AbstractCall
      *
      * @param array $metadata Metadata to send with the call, if applicable
      */
-    public function start($metadata = [])
+    public function start(array $metadata = [])
     {
         $this->call->startBatch([
             OP_SEND_INITIAL_METADATA => $metadata,
@@ -55,7 +55,7 @@ class BidiStreamingCall extends AbstractCall
     /**
      * Reads the next value from the server.
      *
-     * @return The next value from the server, or null if there is none
+     * @return mixed The next value from the server, or null if there is none
      */
     public function read()
     {
@@ -82,7 +82,7 @@ class BidiStreamingCall extends AbstractCall
     public function write($data, $options = [])
     {
         $message_array = ['message' => $data->serialize()];
-        if (isset($options['flags'])) {
+        if (array_key_exists('flags', $options)) {
             $message_array['flags'] = $options['flags'];
         }
         $this->call->startBatch([
@@ -103,8 +103,8 @@ class BidiStreamingCall extends AbstractCall
     /**
      * Wait for the server to send the status, and return it.
      *
-     * @return object The status object, with integer $code, string $details,
-     *                and array $metadata members
+     * @return \stdClass The status object, with integer $code, string $details,
+     *                   and array $metadata members
      */
     public function getStatus()
     {

src/php/lib/Grpc/ClientStreamingCall.php

@@ -60,10 +60,10 @@ class ClientStreamingCall extends AbstractCall
      * @param array      $options an array of options, possible keys:
      *                            'flags' => a number
      */
-    public function write($data, $options = [])
+    public function write($data, array $options = [])
     {
         $message_array = ['message' => $data->serialize()];
-        if (isset($options['flags'])) {
+        if (array_key_exists('flags', $options)) {
             $message_array['flags'] = $options['flags'];
         }
         $this->call->startBatch([
@@ -74,7 +74,7 @@ class ClientStreamingCall extends AbstractCall
     /**
      * Wait for the server to respond with data and a status.
      *
-     * @return [response data, status]
+     * @return array [response data, status]
      */
     public function wait()
     {

src/php/lib/Grpc/ServerStreamingCall.php

@@ -36,14 +36,14 @@ namespace Grpc;
 
 /**
  * Represents an active call that sends a single message and then gets a stream
- * of reponses.
+ * of responses.
  */
 class ServerStreamingCall extends AbstractCall
 {
     /**
      * Start the call.
      *
-     * @param $data The data to send
+     * @param mixed $data     The data to send
      * @param array $metadata Metadata to send with the call, if applicable
      * @param array $options  an array of options, possible keys:
      *                        'flags' => a number
@@ -51,7 +51,7 @@ class ServerStreamingCall extends AbstractCall
     public function start($data, $metadata = [], $options = [])
     {
         $message_array = ['message' => $data->serialize()];
-        if (isset($options['flags'])) {
+        if (array_key_exists('flags', $options)) {
             $message_array['flags'] = $options['flags'];
         }
         $event = $this->call->startBatch([
@@ -64,7 +64,7 @@ class ServerStreamingCall extends AbstractCall
     }
 
     /**
-     * @return An iterator of response values
+     * @return mixed An iterator of response values
      */
     public function responses()
     {
@@ -82,8 +82,8 @@ class ServerStreamingCall extends AbstractCall
     /**
      * Wait for the server to send the status, and return it.
      *
-     * @return object The status object, with integer $code, string $details,
-     *                and array $metadata members
+     * @return \stdClass The status object, with integer $code, string $details,
+     *                   and array $metadata members
      */
     public function getStatus()
     {

src/php/lib/Grpc/UnaryCall.php

@@ -43,7 +43,7 @@ class UnaryCall extends AbstractCall
     /**
      * Start the call.
      *
-     * @param $data The data to send
+     * @param mixed $data     The data to send
      * @param array $metadata Metadata to send with the call, if applicable
      * @param array $options  an array of options, possible keys:
      *                        'flags' => a number
@@ -66,7 +66,7 @@ class UnaryCall extends AbstractCall
     /**
      * Wait for the server to respond with data and a status.
      *
-     * @return [response data, status]
+     * @return array [response data, status]
      */
     public function wait()
     {