Composer update fails with composer.json php version ^7.1.3 - DevOpsSchool.com
Issue while composer install on php 7.1.33 · Issue #8622 · snipe/snipe-it · GitHub
Installing PHP7, Composer and CodeSniffer on Windows 10 (for VSCode)
magento2.3 - PHP Version Conflict Error While install Composer in Windows7 - Magento Stack Exchange
Composer detected issues in your platform – Your Composer dependencies require a PHP version “>= 7.4.0”. You are running 7.1.33-2+ubuntu18.04.1+deb.sury.org+1. – MrRedPig – Life of coder