Teaching zipstreamer new tricks: addFileFromString & addFileOpen/Write/Close

[rivimey]

We needed a PHP Zip archive creator that would stream all the way - so no temporary files at any point. I have based some code on your work that adds two facilities we needed: adding a file from immediate data (i.e. a php string) and adding a file a chunk at a time. The use-case is for the Excel-writer library Spout, which I am also modifying to use ZipStreamer rather than ZipArchive.

I have included some additional tests, and modified the manual.md to describe the new api functions.

The new test does fail, but I think the problem is the test itself: the file size in the directory is expected to be 0 and (in this case) is 808. I believe this is because for the addFileFromString the code has all the data to hand and so sets the length in the file header, rather than appending a file extension record. I am, however, not sure on this point, nor how to modify the test such that it works properly :( so I would appreciate your input if you are able.

ZipStreamer\TestZipStreamer::testZipfileStreamed with data set #1 (array(true, 0, 1), array(ZipStreamer\File Object (...)), 'one empty dir (options = arra...RMAL))')
Z64EIF size
Failed asserting that two objects are equal.
--- Expected
+++ Actual
@@ @@
ZipStreamer\Count64_64 Object (

• 'value' => 0
• 'value' => 808
  'limit32Bit' => false
  )

.../PHPZipStreamer/test/ZipComponents.php:83
.../PHPZipStreamer/test/ZipStreamerTest.php:218
.../PHPZipStreamer/test/ZipStreamerTest.php:443

I have included the .idea directory from phpstorm - just as a helpful thing, and I'll remove it from the pull if you wish.

One thing I would like to do would be make it psr-4 compliant, but I think this would be quite a big change in the files so I've not done anything!