php: add examples for apache and nginx

src/php/README.md

@@ -109,15 +109,19 @@ $ make
 $ sudo make install
 ```
 
-In your php.ini file, add the line `extension=grpc.so` to load the extension
-at PHP startup.
+Add this line to your `php.ini` file, e.g. `/etc/php5/cli/php.ini`
+
+```sh
+extension=grpc.so
+```
 
 Install Composer
 
 ```sh
 $ cd grpc/src/php
 $ curl -sS https://getcomposer.org/installer | php
-$ php composer.phar install
+$ sudo mv composer.phar /usr/local/bin/composer
+$ composer install
 ```
 
 ## Unit Tests
@@ -164,6 +168,132 @@ $ cd grpc/src/php
 $ ./bin/run_gen_code_test.sh
 ```
 
+## Use the gRPC PHP extension with Apache
+
+Install `apache2`, in addition to `php5` above
+
+```sh
+$ sudo apt-get install apache2
+```
+
+Add this line to your `php.ini` file, e.g. `/etc/php5/apache2/php.ini`
+
+```sh
+extension=grpc.so
+```
+
+Restart apache
+
+```sh
+$ sudo service apache2 restart
+```
+
+Make sure the Node math server is still running, as above. 
+
+```sh
+$ cd grpc/src/node
+$ nodejs examples/math_server.js
+```
+
+Make sure you have run `composer install` to generate the `vendor/autoload.php` file
+
+```sh
+$ composer install
+```
+
+Make sure you have generated the client stub `math.php`
+
+```sh
+$ ./bin/generate_proto_php.sh
+```
+
+Copy the `math_client.php` file into your Apache document root, e.g.
+
+```sh
+$ cp tests/generated_code/math_client.php /var/www/html
+```
+
+You may have to fix the first two lines to point the includes to your installation:
+
+```php
+include 'vendor/autoload.php';
+include 'tests/generated_code/math.php';
+```
+
+Connect to `localhost/math_client.php` in your browser, or run this from command line:
+
+```sh
+$ curl localhost/math_client.php
+```
+
+## Use the gRPC PHP extension with Nginx/PHP-FPM
+
+Install `nginx` and `php5-fpm`, in addition to `php5` above
+
+```sh
+$ sudo apt-get install nginx php5-fpm
+```
+
+Add this line to your `php.ini` file, e.g. `/etc/php5/fpm/php.ini`
+
+```sh
+extension=grpc.so
+```
+
+Uncomment the following lines in your `/etc/nginx/sites-available/default` file:
+
+```
+location ~ \.php$ {
+    include snippets/fastcgi-php.conf;
+    fastcgi_pass unix:/var/run/php5-fpm.sock;
+}
+```
+
+Restart nginx and php-fpm
+
+```sh
+$ sudo service nginx restart
+$ sudo service php5-fpm restart
+```
+
+Make sure the Node math server is still running, as above. 
+
+```sh
+$ cd grpc/src/node
+$ nodejs examples/math_server.js
+```
+
+Make sure you have run `composer install` to generate the `vendor/autoload.php` file
+
+```sh
+$ composer install
+```
+
+Make sure you have generated the client stub `math.php`
+
+```sh
+$ ./bin/generate_proto_php.sh
+```
+
+Copy the `math_client.php` file into your Nginx document root, e.g.
+
+```sh
+$ cp tests/generated_code/math_client.php /var/www/html
+```
+
+You may have to fix the first two lines to point the includes to your installation:
+
+```php
+include 'vendor/autoload.php';
+include 'tests/generated_code/math.php';
+```
+
+Connect to `localhost/math_client.php` in your browser, or run this from command line:
+
+```sh
+$ curl localhost/math_client.php
+```
+
 [homebrew]:http://brew.sh
 [gRPC install script]:https://raw.githubusercontent.com/grpc/homebrew-grpc/master/scripts/install
 [Node]:https://github.com/grpc/grpc/tree/master/src/node/examples

src/php/tests/generated_code/math_client.php

+<?php
+
+# Fix the following two lines to point to your installation
+include 'vendor/autoload.php';
+include 'tests/generated_code/math.php';
+
+function p($line) {
+  print("$line<br/>\n");
+}
+
+h$host = "localhost:50051";
+p("Connecting to host: $host");
+$client = new math\MathClient($host, []);
+p("Client class: ".get_class($client));
+p('');
+
+p("Running unary call test:");
+$dividend = 7;
+$divisor = 4;
+$div_arg = new math\DivArgs();
+$div_arg->setDividend($dividend);
+$div_arg->setDivisor($divisor);
+$call = $client->Div($div_arg);
+p("Call peer: ".$call->getPeer());
+p("Dividing $dividend by $divisor");
+list($response, $status) = $call->wait();
+p("quotient = ".$response->getQuotient());
+p("remainder = ".$response->getRemainder());
+p('');
+
+p("Running server streaming test:");
+$limit = 7;
+$fib_arg = new math\FibArgs();
+$fib_arg->setLimit($limit);
+$call = $client->Fib($fib_arg);
+$result_array = iterator_to_array($call->responses());
+$result = '';
+foreach ($result_array as $num) {
+  $result .= ' ' . $num->getNum();
+}
+p("The first $limit Fibonacci numbers are:".$result);
+p('');
+
+p("Running client streaming test:");
+$call = $client->Sum();
+for ($i = 0; $i <= $limit; $i++) {
+  $num = new math\Num();
+  $num->setNum($i);
+  $call->write($num);
+}
+list($response, $status) = $call->wait();
+p(sprintf("The first %d positive integers sum to: %d",
+                   $limit, $response->getNum()));
+p('');
+
+p("Running bidi-streaming test:");
+$call = $client->DivMany();
+for ($i = 0; $i < 7; $i++) {
+  $div_arg = new math\DivArgs();
+  $dividend = 2 * $i + 1;
+  $div_arg->setDividend($dividend);
+  $divisor = 3;
+  $div_arg->setDivisor($divisor);
+  $call->write($div_arg);
+  p("client writing: $dividend / $divisor");
+  $response = $call->read();
+  p(sprintf("server writing: quotient = %d, remainder = %d",
+                     $response->getQuotient(), $response->getRemainder()));
+}
+$call->writesDone();