- ckeditor5_requirements in core/
modules/ ckeditor5/ ckeditor5.install - Implements hook_requirements().
- file_requirements in core/
modules/ file/ file.install - Implements hook_requirements().
- hook_requirements in core/
modules/ system/ system.api.php - Check installation requirements and do status reporting.
- system_requirements in core/
modules/ system/ system.install - Implements hook_requirements().
- telemetry_requirements in core/
modules/ telemetry/ telemetry.install - Implements hook_requirements().
- theme_status_report in core/
modules/ system/ system.theme.inc - Returns HTML for the status report.
- UpdateScriptFunctionalTest::testRequirements in core/
modules/ system/ tests/ system.test - Tests that requirements warnings and errors are correctly displayed.
- update_requirements in core/
modules/ update/ update.install - Implements hook_requirements().
- update_script_test_requirements in core/
modules/ simpletest/ tests/ update_script_test.install - Implements hook_requirements().
- _system_check_db_utf8mb4_requirements in core/
modules/ system/ system.install - Checks whether the requirements for multi-byte UTF-8 support are met.
- _update_requirement_check in core/
modules/ update/ update.install - Fills in the requirements array.