xml class cannot be found - php

Question

I am trying to work with fluidxml to test if I can use it, but I cant get it to start working, I am using codeigniter framework. I cloned the repo https://github.com/servo-php/fluidxml and added it to a folder I created called thirdparty. Then here is the code for the function
public function xmltrial(){
$this->load->helper('file');
require_once(APPPATH.'third_party/fluidxml/source/FluidXml.php');
$book = new FluidXml();
$book->add([ 'title' => 'The Theory Of Everything',
'author' => 'S. Hawking',
'chapters' => [
[ 'chapter' => [
'#id' => '1',
'#' => 'Ideas About The Universe' ] ],
[ 'chapter' => [
'#id' => '2',
'#' => 'The Expanding Universe' ] ],
]]);
echo $book;
}
So I am getting two errors , one is Fatal error: Class 'FluidXml' not found even and the second one is if I use use function \FluidXml\fluidxml;
use function \FluidXml\fluidns;
use function \FluidXml\fluidify; all this character inside my xmltrial function it shows a red error on them.

Answer 1

You should use composer to manage your dependencies. Get composer installed, then install FluidXml into the vendor folder by typing
composer require servo/fluidxml
in the command line. Then you can
require_once 'vendor/autoload.php'
in your index.php, and you can forget about having to require in the files! You just need to put the relevant use statement under your namespace declaration.In your case,
use FluidXml\FluidXml;
Now you can start calling your class!
See Packagist for composer package details https://packagist.org/packages/servo/fluidxml
See Composer site to get composer into CodeIgniter if you don't already https://getcomposer.org/