Potential incompatibility with `libcurl` 8.9.0+

[ltrk2]

It seems that combining this extension with libcurl 8.9.0+ breaks some functionality.

On top of a pristine Ubuntu Docker container started as docker run -it --rm ubuntu I used the following steps of reproduction:

apt update && apt install -y git libicu-dev php-dev wget zlib1g-dev

wget -qO- "https://curl.se/download/curl-8.9.0.tar.gz" | tar -zxf - -C /usr/src \
    && cd /usr/src/curl-8.9.0 \
    && ./configure --enable-versioned-symbols --with-openssl \
    && make -j \
    && make install

pecl install raphf && echo "extension=raphf.so" >> "$(php-config --ini-dir)/ext-raphf.ini"

git clone https://github.com/m6w6/ext-http.git /usr/src/ext-http \
    && cd /usr/src/ext-http \
    && phpize \
    && ./configure \
    && make -j \
    && make install \
    && echo "extension=http.so" >> "$(php-config --ini-dir)/ext-http.ini"

php -n run-tests.php tests

Eventually, the test summary is as follows:

=====================================================================
Number of tests :   203               167
Tests skipped   :    36 ( 17.7%) --------
Tests warned    :     0 (  0.0%) (  0.0%)
Tests failed    :    32 ( 15.8%) ( 19.2%)
Tests passed    :   135 ( 66.5%) ( 80.8%)
---------------------------------------------------------------------
Time taken      :   135 seconds
=====================================================================

With many failures sharing this common theme:

TEST 8/203 [tests/bug69357.phpt]
========DIFF========
     Test
002- string(15) "HTTP/1.1 200 OK"
003- array(4) {
004-   ["Accept-Ranges"]=>
005-   string(5) "bytes"
006-   ["Etag"]=>
007-   string(10) ""%x""
008-   ["X-Original-Transfer-Encoding"]=>
009-   string(7) "chunked"
010-   ["Content-Length"]=>
011-   int(%d)
012- }
013- ===DONE===
002+
003+ Notice: http\Client::enqueue(): Could not set option interface (A libcurl function was given a bad argument) in /usr/src/ext-http/tests/bug69357.php on line 12
004+
005+ Fatal error: Uncaught Error: Call to a member function send() on null in /usr/src/ext-http/tests/bug69357.php:12
006+ Stack trace:
007+ #0 /usr/src/ext-http/tests/helper/server.inc(192): {closure}('40778', Resource id #7, Resource id #8, Resource id #9)
008+ #1 /usr/src/ext-http/tests/helper/server.inc(140): proc('/usr/bin/php8.3', Array, Object(Closure))
009+ #2 /usr/src/ext-http/tests/bug69357.php(6): server('upload.inc', Object(Closure))
010+ #3 {main}
011+   thrown in /usr/src/ext-http/tests/bug69357.php on line 12
========DONE========
FAIL Bug #69357 (HTTP/1.1 100 Continue overriding subsequent 200 response code with PUT request) [tests/bug69357.phpt]

When running the same test against libcurl 8.8.0, I get this:

=====================================================================
Number of tests :   203               167
Tests skipped   :    36 ( 17.7%) --------
Tests warned    :     0 (  0.0%) (  0.0%)
Tests failed    :     2 (  1.0%) (  1.2%)
Tests passed    :   165 ( 81.3%) ( 98.8%)
---------------------------------------------------------------------
Time taken      :   170 seconds
=====================================================================