通过php install找不到与Composer一起安装的软件包

Question

I have installed prewk/xml-string-streamer using Composer into my Xampp PHP install, which lists the installation quite happy through the xampp command line. However when I try to use the package, PHP bugs out the same as it did before the install. I'm trying to do the following:

$streamer = Prewk\XmlStringStreamer::createStringWalkerParser($filename);

as in the xml-string-streamer docs.

I feel I'm missing something obvious, and am aware this might be a specific problem with my setup, but I'm hoping I've missed a step or something.

Answer 1

https://getcomposer.org/doc/01-basic-usage.md

I found the above page which answered most of my questions about how to get this to work. I realised I'd installed the package, but not in the correct directory, nor had I included the correct include command to make it work. I'm still getting errors but they appear to be from my buggy code-writing than this problem.

Sorry for wasting everyone's time.