BUgfix fix undefined array warnings #345

Job	Run time
PHP Lint (7.4)	17s
PHP Lint (8.0)	26s
PHP Lint (8.1)	29s
PHP Lint (8.2)	22s
PHP Lint (8.3)	17s
PHP QS (test:phpcs, 7.4)	22s
PHP QS (test:phpcs, 8.0)	22s
PHP QS (test:phpcs, 8.1)	24s
PHP QS (test:phpcs, 8.2)	24s
PHP QS (test:phpcs, 8.3)	20s
PHP QS (test:phpcompatibility, 7.4)	2m 55s
PHP QS (test:phpcompatibility, 8.0)	3m 3s
PHP QS (test:phpcompatibility, 8.1)	3m 11s
PHP QS (test:phpcompatibility, 8.2)	3m 12s
PHP QS (test:phpcompatibility, 8.3)	3m 10s
PHP QS (test:phpstan, 7.4)	26s
PHP QS (test:phpstan, 8.0)	26s
PHP QS (test:phpstan, 8.1)	26s
PHP QS (test:phpstan, 8.2)	33s
PHP QS (test:phpstan, 8.3)	34s
PHP Unit (^11.5, 7.4)	17s
PHP Unit (^11.5, 8.0)	17s
PHP Unit (^11.5, 8.1)	18s
PHP Unit (^11.5, 8.2)	19s
PHP Unit (^11.5, 8.3)	16s
PHP Unit (^12.4, 8.1)	30s
PHP Unit (^12.4, 8.2)	19s
PHP Unit (^12.4, 8.3)	20s
	24m 15s

Provide feedback