Added travis-ci tests

.travis.yml

@@ -0,0 +1,9 @@
+language: php
+php:
+  - '5.6'
+  - '7.0'
+  - hhvm
+  - nightly
+
+script:
+  - phpunit --bootstrap lib/danog/PHP/StructException.php --bootstrap lib/danog/PHP/Struct.php tests/danog/PHP/StructTest.php --verbose

README.md

@@ -1,5 +1,7 @@
 # PHPStruct class
 
+[![Build Status](https://travis-ci.org/danog/PHPStruct.svg?branch=master)](https://travis-ci.org/danog/PHPStruct)
+
 Licensed under MIT.
 
 PHP implementation of Python's struct module.

lib/danog/PHP/Struct.php

@@ -102,6 +102,7 @@ class Struct {
 	 * @return 	Encoded data 
 	 */
 	public function pack($format, ...$data) {
+		//var_dump("Pack called with ", $format, $data);
 		$result = null; // Data to return
 		$packcommand = $this->parseformat($format, $this->array_total_strlen($data), $this->array_each_strlen($data)); // Get pack parameters