Error installing PHP when `--with-pear` is used

[rbgarga]

Description

The following code:

./configure --with-pear
make
make install

Resulted in this output:

[PEAR] Archive_Tar    - already installed: 1.4.14
[PEAR] Console_Getopt - already installed: 1.4.3
[PEAR] Structures_Graph- already installed: 1.1.1
[PEAR] XML_Util       - already installed: 1.4.5
[PEAR] PEAR: Invalid tag order in <dependencies>, found <_content> expected one of "group"
[PEAR] PEAR: Parsing of package.xml from file "/tmp/pear/temp/pearilLpFg/package.xml" failed

Based on this comment from 3 days ago I'm not alone https://aur.archlinux.org/packages/php83-mysql#comment-980592

PHP Version

PHP 8.3.9

Operating System

Chimera linux

[rainerjung]

I can reproduce when building PHP 8.3.9 using libxml2 2.13.2 and libxslt 1.1.42. The problem does not occur with the same PHP sources and using libxml2 2.12.7 and libxslt 1.1.39. I will see, whether I can triage further.

[nielsdos]

I can reproduce this and is probably related to the libxml2 update.
Note though that PHP 8.3.9 is not compatible with libxml2 2.13, 8.3.10 will be. That said I can reproduce it on the latest development release of PHP as well.

[rbgarga]

For the record, libxml2 version on my system is 2.13.2

[nielsdos]

I tested it on libxml2 2.12 and it works, while 2.13 breaks. I'm starting to bisect libxml2 now.

[nielsdos]

Bisected to GNOME/libxml2@4f14fe9

[nielsdos]

I figured it out.
The following PHP code:

<?php
$parser = xml_parser_create();
xml_set_character_data_handler($parser, function($_, $data) {
    var_dump($data);
});
xml_parse($parser, file_get_contents('test.xml'), true);
?>

with the following XML document:

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <element hint="hello&apos;world"/>
</root>

Now produces an extra ' output because the instate check is now always true because this functionality was heavily changed in the upstream library. This is a painful API break from libxml...

[nielsdos]

I opened a PR and the fix should be a part of the next 8.2 and 8.3 releases.