diff --git a/src/Data/AlphaNum.php b/src/Data/AlphaNum.php
index 0d224efc7..93ef9fc59 100644
--- a/src/Data/AlphaNum.php
+++ b/src/Data/AlphaNum.php
@@ -111,6 +111,7 @@ public static function decodeSegment(BitBuffer $bitBuffer, int $versionNumber):s
 	 * @throws \chillerlan\QRCode\Data\QRCodeDataException
 	 */
 	private function ord(string $chr):int{
+		/** @phan-suppress-next-line PhanParamSuspiciousOrder */
 		$ord = strpos(self::CHAR_MAP, $chr);
 
 		if($ord === false){
diff --git a/src/Data/Number.php b/src/Data/Number.php
index deae33306..3e4238fdc 100644
--- a/src/Data/Number.php
+++ b/src/Data/Number.php
@@ -11,7 +11,7 @@
 namespace chillerlan\QRCode\Data;
 
 use chillerlan\QRCode\Common\{BitBuffer, Mode};
-use function array_flip, ceil, intdiv, str_split, substr, unpack;
+use function ceil, intdiv, substr, unpack;
 
 /**
  * Numeric mode: decimal digits 0 to 9