psliwa
commented
3 years ago Hi,
The codebase of this library is written using php 7.1+ features so there is no way to lower php version requirements in composer.json. Php 5.6 is rather old and it even doesn't have security fixes as far as I know. If you want to use this library with php 5.6 you need to use 1.2.3 version which should work on this php version.
I wondering if there is a way to lower PHP requirements back to 5.6.
I'm asking for this because I suspect that the actual 7.1 requirement is related only to symfony stuff. In another package (phpmyadmin/motranslator) that use similar stuff I'm able lo force the php version with composer (because the last code base written for PHP 7.2+ give parsing error when used with 5.6)
Default installation on PHP 7.4
$ composer require phpmyadmin/motranslator Loading composer repositories with package information Updating dependencies (including require-dev) Package operations: 10 installs, 0 updates, 0 removals
Installing psr/container (1.0.0): Loading from cache Installing symfony/service-contracts (v2.2.0): Loading from cache Installing psr/cache (1.0.1): Downloading (100%) Installing symfony/polyfill-php80 (v1.20.0): Loading from cache Installing symfony/var-exporter (v5.1.8): Loading from cache Installing symfony/cache-contracts (v2.2.0): Loading from cache Installing psr/log (1.1.3): Loading from cache Installing symfony/cache (v5.1.8): Loading from cache Installing symfony/expression-language (v4.4.16): Loading from cache Installing phpmyadmin/motranslator (4.0): Downloading (100%) symfony/service-contracts suggests installing symfony/service-implementation Generating autoload files Switch to a 5.6 compatible version
$ composer config platform.php 5.6 $ composer update Loading composer repositories with package information Updating dependencies (including require-dev) Package operations: 4 installs, 2 updates, 5 removals
Removing psr/container (1.0.0) Removing symfony/polyfill-php80 (v1.20.0) Removing symfony/var-exporter (v5.1.8) Removing symfony/cache-contracts (v2.2.0) Removing symfony/service-contracts (v2.2.0) Installing paragonie/random_compat (v2.0.19): Loading from cache Installing symfony/polyfill-php70 (v1.19.0): Loading from cache Installing psr/simple-cache (1.0.1): Loading from cache Installing symfony/polyfill-apcu (v1.19.0): Loading from cache Downgrading symfony/cache (v5.1.8 => v3.4.46): Loading from cache Downgrading symfony/expression-language (v4.4.16 => v3.4.46): Loading from cache paragonie/random_compat suggests installing ext-libsodium (Provides a modern crypto API that can be used to generate random bytes.) Writing lock file Generating autoload files
I've tried the same with psliwa/image-optimizer but it not works
$ composer config platform.php 5.6 $ composer update Loading composer repositories with package information Updating dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages.
Problem 1