-$covfilter->addDirectoryToWhitelist($_SERVER['COV_PHP_DIR'].'/lib-php');
-$covfilter->addDirectoryToWhitelist($_SERVER['COV_PHP_DIR'].'/website');
-$coverage = new SebastianBergmann\CodeCoverage\CodeCoverage(null, $covfilter);
+if (method_exists($covfilter, 'addDirectoryToWhitelist')) {
+ // pre PHPUnit 9
+ $covfilter->addDirectoryToWhitelist($_SERVER['COV_PHP_DIR'].'/lib-php');
+ $covfilter->addDirectoryToWhitelist($_SERVER['COV_PHP_DIR'].'/website');
+ $coverage = new SebastianBergmann\CodeCoverage\CodeCoverage(null, $covfilter);
+} else {
+ // since PHP Uit 9
+ $covfilter->includeDirectory($_SERVER['COV_PHP_DIR'].'/lib-php');
+ $covfilter->includeDirectory($_SERVER['COV_PHP_DIR'].'/website');
+ $coverage = new SebastianBergmann\CodeCoverage\CodeCoverage(
+ (new SebastianBergmann\CodeCoverage\Driver\Selector)->forLineCoverage($covfilter),
+ $covfilter
+ );
+}
+