fixed latest coding style issues; refined a few PHP doc entries to ma… #587

Job	Run time
PHPUnit coverage (PHP 7.4)	56s
PHPUnit (PHP 7.1)	30s
PHPUnit (PHP 7.2)	29s
PHPUnit (PHP 7.3)	27s
Tests alternative autoloader (PHP 7.1)	7s
PHPUnit (PHP 7.4)	36s
Tests alternative autoloader (PHP 7.2)	7s
PHPUnit (PHP 8.0)	30s
Tests alternative autoloader (PHP 7.3)	10s
PHPUnit (PHP 8.1)	29s
Tests alternative autoloader (PHP 7.4)	10s
PHPUnit (PHP 8.2)	28s
Tests alternative autoloader (PHP 8.0)	7s
PHPUnit (PHP 8.3)	33s
Tests alternative autoloader (PHP 8.1)	6s
Tests alternative autoloader (PHP 8.2)	33s
PHPUnit Composer v2 (PHP 7.4)	27s
Tests alternative autoloader (PHP 8.3)	6s
PHPUnit lowest deps (PHP 7.3)	35s
Windows-Tests with PHP 7.1	1m 11s
Windows-Tests with PHP 7.2	54s
Windows-Tests with PHP 7.3	1m 0s
Windows-Tests with PHP 7.4	57s
Windows-Tests with PHP 8.0	54s
Windows-Tests with PHP 8.1	1m 5s
Windows-Tests with PHP 8.2	1m 2s
Windows-Tests with PHP 8.3	57s
	15m 26s

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