Fixes exception bubbling for php7 (codeclimate#61)

* Dockerfile fixes to get image building * Rescues `Throwable` which includes `Exception` and php7 `Error` objects

Author: Chris Hulton

Dockerfile

@@ -12,11 +12,15 @@ RUN apk --update add \
  php7-openssl \
  php7-pcntl \
  php7-phar \
+ php7-simplexml \
  php7-sockets \
+ php7-tokenizer \
+ php7-xml \
+ php7-xmlwriter \
  curl \
  git && \
  rm /var/cache/apk/* && \
- ln -s /usr/bin/php7 /usr/bin/php
+ ln -sf /usr/bin/php7 /usr/bin/php
 
 RUN adduser -u 9000 -D app
 

Runner.php

@@ -120,7 +120,7 @@ public function run($files)
  }
 
  return $resultFile;
- } catch (Exception $e) {
+ } catch (\Throwable $e) {
  error_log("Exception: " . $e->getMessage() . " in " . $e->getFile() . "\n" . $e->getTraceAsString());
  return $e;
  }

engine.php

@@ -32,7 +32,7 @@
 $results = $server->get_all_results();
 
 foreach ($results as $result_file) {
- if (is_a($result_file, "Exception")) {
+ if (is_a($result_file, "Throwable")) {
  exit(1);
  }