diff --git a/www/admin/class_test.array.php b/www/admin/class_test.array.php
index cc1789b3..381816ed 100644
--- a/www/admin/class_test.array.php
+++ b/www/admin/class_test.array.php
@@ -21,7 +21,7 @@ ob_end_flush();
 use CoreLibs\Combined\ArrayHandler;
 use CoreLibs\Debug\Support as DgS;
 use CoreLibs\Convert\SetVarType;
-use PHPUnit\Framework\Constraint\ArrayHasKey;
+// use PHPUnit\Framework\Constraint\ArrayHasKey;
 
 $log = new CoreLibs\Logging\Logging([
 	'log_folder' => BASE . LOG,
diff --git a/www/admin/class_test.datetime.php b/www/admin/class_test.datetime.php
index 7255c368..76697b6d 100644
--- a/www/admin/class_test.datetime.php
+++ b/www/admin/class_test.datetime.php
@@ -451,6 +451,7 @@ function intervalStringFormatDeprecated(
 			$value = $interval->days;
 			$skip = true;
 		} else {
+			/** @phan-suppress-next-line PhanUndeclaredProperty */
 			$value = $interval->$part;
 		}
 		if ($value == 0 && $skip_last_zero === true) {
diff --git a/www/admin/class_test.db.query-placeholder.php b/www/admin/class_test.db.query-placeholder.php
index da052c4e..6010d05f 100644
--- a/www/admin/class_test.db.query-placeholder.php
+++ b/www/admin/class_test.db.query-placeholder.php
@@ -20,7 +20,7 @@ $LOG_FILE_ID = 'classTest-db-query-placeholder';
 ob_end_flush();
 
 use CoreLibs\Debug\Support;
-use CoreLibs\DB\Support\ConvertPlaceholder;
+// use CoreLibs\DB\Support\ConvertPlaceholder;
 
 $log = new CoreLibs\Logging\Logging([
 	'log_folder' => BASE . LOG,
diff --git a/www/admin/class_test.db.single.php b/www/admin/class_test.db.single.php
index ea196ff0..47445f83 100644
--- a/www/admin/class_test.db.single.php
+++ b/www/admin/class_test.db.single.php
@@ -19,7 +19,7 @@ require 'config.php';
 $LOG_FILE_ID = 'classTest-db-query-placeholders';
 ob_end_flush();
 
-use CoreLibs\Debug\Support;
+// use CoreLibs\Debug\Support;
 
 $log = new CoreLibs\Logging\Logging([
 	'log_folder' => BASE . LOG,
diff --git a/www/admin/class_test.smarty.php b/www/admin/class_test.smarty.php
index 6eb54f06..e752ccba 100644
--- a/www/admin/class_test.smarty.php
+++ b/www/admin/class_test.smarty.php
@@ -97,7 +97,7 @@ $smarty->DATA['drop_down_test'] = [
 	'foobar' => 'Foo Bar',
 ];
 $smarty->DATA['drop_down_test_selected'] = 'bar';
-$smarty->DATA['drop_down_test_nested']  = [
+$smarty->DATA['drop_down_test_nested'] = [
 	'' => '選択してください',
 	'4/25(木)' => [
 		'4/25(木) 11:00-11:50' => '4/25(木) 11:00-11:50',