Allow layers to load extra ini files and allow the task to load additional ini files

Author: JerryVerhoef

README.md

@@ -63,7 +63,9 @@ extension=json.so
 
 Extensions can be built using the lambci/lambda:build-nodejs8.10 Docker image. It is recommended that custom extensions be provided by a separate Lambda Layer with the extension .so files placed in /lib/php/7.1/modules/ so they can be loaded alongside the built-in extensions listed above.
 
-#### Example
+The extensions can be loaded by adding an ini file in the etc/php-7.1.d this will be picked up automatically
+
+#### SAM Example
 Let's create an AWS SAM PHP application. We suggest using [Stackery](https://stackery.io) to make this super simple. It automates all the scaffolding shown below. But you may also choose to roll your own application from scratch.
 
 First, install [AWS SAM CLI](https://github.com/awslabs/aws-sam-cli). Make sure to create a SAM deployment bucket as shown in [Packaging your application](https://github.com/awslabs/aws-sam-cli/blob/develop/docs/deploying_serverless_applications.rst#packaging-your-application)

bootstrap

@@ -15,7 +15,7 @@ function start_webserver() {
       // exec the command
       $HANDLER = getenv('_HANDLER');
       chdir('/var/task');
-      exec("php -S localhost:8000 -c /var/task/php.ini -d extension_dir=/opt/lib/php/7.1/modules '$HANDLER'");
+      exec("PHP_INI_SCAN_DIR=/opt/etc/php-7.1.d/:/var/task/php-7.1.d/ php -S localhost:8000 -c /var/task/php.ini -d extension_dir=/opt/lib/php/7.1/modules '$HANDLER'");
       exit;
 
     // return the child pid to parent
@@ -137,7 +137,7 @@ while (true) {
         array_push($headers, "${name}: ${value}");
       }
     }
-    
+
     curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
   }
 
@@ -216,4 +216,4 @@ while (true) {
   curl_close($ch);
 }
 
-?>
+?>