PHP speadsheet 1.5.2 modifies libxml_disable_entity_loader value

[stephane-de]

This is:

• a bug report

What is the expected behavior?

The value of libxml_disable_entity_loader stay the same after I use PhpSpreadsheet
(In this case when I input a PDF file, PHPSpreadsheet fails to open it, and throws an exception, but still, the value of libxml_disable_entity_loader is changed)

What is the current behavior?

In 1.5.2
The value is changed by :
libxml_disable_entity_loader(true);

What are the steps to reproduce?

(where test.pdf is a valid PDF file)

<?php

require __DIR__ . '/vendor/autoload.php';

$previousValue =  libxml_disable_entity_loader(false);
print_r('previous value: '.$previousValue."\n");

// Create new Spreadsheet object
$spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();
try {
    \PhpOffice\PhpSpreadsheet\IOFactory::load('test.pdf');
} catch(\Throwable $e) {

}

// add code that show the issue here...
$newValue =  libxml_disable_entity_loader(false);
print_r('new value: '.$newValue."\n");

With phpSpreadsheet 1.5.2

php test.php 
previous value: 
new value: 1