尝试使用 PHP 8.0 安装 Xdebug - 已安装的 Zend Engine API 版本 420200930 较新

Question

I've recently installed PHP 8.0 on my Ubuntu 20.04 server and I'm trying to get Xdebug working with it. I've installed it as per the directions from https://xdebug.org/wizard :

Installation Wizard
Summary

Xdebug installed: no
Server API: Command Line Interface
Windows: no
Zend Server: no
PHP Version: 8.0.0
Zend API nr: 420200930
PHP API nr: 20200930
Debug Build: no
Thread Safe Build: no
OPcache Loaded: yes
Configuration File Path: /etc/php/8.0/cli
Configuration File: /etc/php/8.0/cli/php.ini
Extensions directory: /usr/lib/php/20200930

Instructions

Download xdebug-3.0.2.tgz
Install the pre-requisites for compiling PHP extensions.
On your Ubuntu system, install them with: apt-get install php-dev autoconf automake
Unpack the downloaded file with tar -xvzf xdebug-3.0.2.tgz
Run: cd xdebug-3.0.2

Run: phpize (See the FAQ if you don't have phpize).

As part of its output it should show:

Configuring for:
...
Zend Module Api No:      20200930
Zend Extension Api No:   420200930

If it does not, you are using the wrong phpize. Please follow this FAQ entry and skip the next step.
Run: ./configure
Run: make
Run: cp modules/xdebug.so /usr/lib/php/20200930
Edit /etc/php/8.0/cli/php.ini and add the line
zend_extension = /usr/lib/php/20200930/xdebug.so
Make sure that zend_extension = /usr/lib/php/20200930/xdebug.so is below the line for OPcache.
Please also update php.ini files in adjacent directories, as your system seems to be configured with a separate php.ini file for the web server and command line.

But I get this error when doing php -v :

Xdebug requires Zend Engine API version 320190902.
The Zend Engine API version 420200930 which is installed, is newer.
Contact Derick Rethans at https://xdebug.org/docs/faq#api for a later version of Xdebug.

When I ran phpize, I got this output:

Configuring for:
PHP Api Version:         20190902
Zend Module Api No:      20190902
Zend Extension Api No:   320190902

So I'm not sure what I need to do here. Why am I unable to use the right Zend API version?

Ubuntu reports that I have the lastest versions of autoconf , automake and php-dev

Answer 1

I had exactly the same issue. After some investigation I realized the problem was caused because the configuration path assumed during the compiling process was pointing to the global php-config (another php version). So I just had to run the compilation with the flag (Xampp in my case):

./configure --with-php-config=/opt/lampp/bin/php-config

The next steps were the same you did and it works like a charm.