TYPO3 Core

This usually happens if the server (CI build server) runs a different PHP version or composer version than the production system, is that possible?

same Error here after "composer update"

Error:

PHP Parse error:  syntax error, unexpected 'Event' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /public/typo3/sysext/core/Classes/Composer/PackageArtifactBuilder.php on line 49

Parse error: syntax error, unexpected 'Event' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /public/typo3/sysext/core/Classes/Composer/PackageArtifactBuilder.php on line 49

PHP: PHP Version 7.4.23

I get this error if I use PHP8.0

PHP Parse error:  syntax error, unexpected 'Event' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in \app\public\typo3\sysext\core\Classes\Composer\PackageArtifactBuilder.php on line 49

Parse error: syntax error, unexpected 'Event' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in \app\public\typo3\sysext\core\Classes\Composer\PackageArtifactBuilder.php on line 49

On PHP7.4 everything is fine.

same error here after "composer update":

PHP Parse error:  syntax error, unexpected 'Event' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /public/typo3/sysext/core/Classes/Composer/PackageArtifactBuilder.php on line 49

Parse error: syntax error, unexpected 'Event' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /public/typo3/sysext/core/Classes/Composer/PackageArtifactBuilder.php on line 49

$php74 --version

PHP 7.4.26 (cli) (built: Nov 19 2021 11:52:45) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with the ionCube PHP Loader + ionCube24 v10.4.0, Copyright (c) 2002-2020, by ionCube Ltd.

Damit geht nun alles:
http://www.typo3-probleme.de/2021/11/17/all-inkl-typo3-composer-installation-2516/

php74 composer.phar update

Same error on a shared hoster: (df.eu)
php --version -> 7.4.1..
composer --version -> 2.1.14 ..

but still composer is loading from "somewhere" php 7.3

Final solution from this gist https://gist.github.com/peterkraume/95b6ea3620cad311865e69a686564fc7

  ln -s /usr/bin/php74 ~/php

and add to:

.bashrc

  export PATH=$HOME:$PATH

Hey.

All reports probably come from instances where the php version in web context is 7.4 or higher, but on cli it's still < 7.4. It is unfortunate some hosters don't get this right, and there are probably various workaround for specific ones.

In this case, we relaxed this file a bit to also deal with older PHP versions, this is class executed early and "hooked" into composer does not fail when the PHP version is too old. See #96017 for details.