PHP 7.4 cURL does not support HTTP/2, while system cURL does

aaP_alone.bless.you

Hello,

I’m using aaPanel on Ubuntu 24.04 with PHP 7.4.33.

My current PHP 7.4 cURL configuration is:

libcurl: 7.70.0
OpenSSL: 1.0.2u
HTTP/2: Not supported

However, the system curl installed on the server already supports HTTP/2.

I also have these newer libraries installed:

/usr/local/curl_2 → cURL 7.74.0 with OpenSSL 1.1.1o
/usr/local/openssl111 → OpenSSL 1.1.1o

I want to enable HTTP/2 support specifically for PHP 7.4’s cURL extension, using nghttp2 if required.

I found aaPanel instructions suggesting compiling nghttp2, rebuilding cURL with --with-nghttp2, and then rebuilding PHP. However, I want to know the correct and safest procedure for PHP 7.4 on aaPanel.

I have several production Telegram bots currently running on PHP 7.4, so I must not break the existing PHP 7.4 installation, its extensions, PHP-FPM configuration, or the bots.

I want to upgrade/rebuild the required cURL and PHP 7.4 components safely while preserving the current PHP 7.4 configuration and extensions.

What is the recommended procedure?

Do I need to:

Compile/install nghttp2.
Rebuild cURL with HTTP/2 support.
Rebuild PHP 7.4.33 so its cURL extension links to the new libcurl.

Or is there an aaPanel-supported method to enable HTTP/2 in PHP 7.4 without rebuilding the entire PHP installation?

Please provide the exact recommended steps and explain how to avoid breaking the existing PHP 7.4 installation and production bots.

aaPanel_Kern

Hello.

Have you tried using the new version of PHP?
You can also try to compile and install this extension.

aaP_alone.bless.you

Hello.

Yes, I tested PHP 8.3 on the same server.

PHP 8.3 uses cURL 7.74.0 with OpenSSL 1.1.1o and requests to the Telegram Bot API are consistently faster than PHP 7.4.

My current PHP 7.4 installation is using:

cURL 7.70.0
OpenSSL 1.0.2u

I would like to keep PHP 7.4 for compatibility reasons, but I am trying to safely upgrade its cURL/OpenSSL stack and enable HTTP/2 support without breaking existing websites and bots.

Which extension are you referring to? Could you provide the exact extension name or installation steps for PHP 7.4?

Thank you.

aaPanel_Kern

We suggest that you start by using the new version of PHP. If it functions properly, then continue to use the new version of PHP.
7.4 You can keep it

aaP_alone.bless.you

Thank you.

I understand that PHP 8.3 is recommended, and I already tested it successfully.

However, I still have many production bots running on PHP 7.4, so I cannot migrate everything immediately.

My question is specifically about PHP 7.4:

Is there a safe and supported way in aaPanel to rebuild PHP 7.4 with cURL 7.74.0, OpenSSL 1.1.1o and HTTP/2 support, while keeping all existing PHP extensions and websites working?

I would prefer an official aaPanel method rather than manually replacing libraries and risking breaking the server.

Thank you.

aaPanel_Kern

Hello,
Manually compile and install curl to support http2
Currently, it can only be handled manually. Reference

wget http://node.aapanel.com/src/nghttp2-1.42.0.tar.gz
tar -zxf nghttp2-1.42.0.tar.gz
cd nghttp2-1.42.0
rm -rf /usr/local/nghttp2
autoreconf -i
automake
autoconf
./configure --prefix=/usr/local/nghttp2
make && make install

curl:
wget http://node.aapanel.com/src/curl-7.70.0.tar.gz
tar -zxf curl-7.70.0.tar.gz
cd curl-7.70.0
mv /usr/local/curl /usr/local/curl_old
./configure --prefix=/usr/local/curl --with-nghttp2=/usr/local --with-ssl --enable-ares --without-nss --with-ssl=/usr/local/openssl --with-nghttp2=/usr/local/nghttp2
make && make install

/etc/init.d/php-fpm-74 restart
rm -rf /usr/local/curl/bin/curl
ln -sf /usr/bin/curl /usr/local/curl/bin/curl

aaP_alone.bless.you

Thank you very much for your detailed explanation and for providing the correct procedure for PHP 7.4.

I really appreciate your help.