6 uses of Drupal::MINIMUM_PHP

ComponentGenerator::initialPackageMetadata in composer/Generator/ComponentGenerator.php
Common default metadata for all components.
ComposerTest::testEnsurePhpConfiguredVersion in core/tests/Drupal/Tests/Composer/ComposerTest.php
Ensure that the configured php version matches the minimum php version.
DrupalTest::testPhpConstants in core/tests/Drupal/Tests/Core/DrupalTest.php
Tests the PHP constants have consistent values.
hook_requirements in core/lib/Drupal/Core/Extension/module.api.php
Check installation requirements and do status reporting.
install_profile_info in core/includes/install.inc
Retrieves information about an installation profile from its .info.yml file.
system_requirements in core/modules/system/system.install
Implements hook_requirements().

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