fix: phpstan level=3

src/Tools/SQLStatementExtractor.php

@@ -50,7 +50,7 @@ class SQLStatementExtractor {
     /**
      * Extract statements from string.
      * 
-     * @param string $txt
+     * @param string $buffer
      * @return array
      */
     public static function extract($buffer) {
@@ -61,7 +61,7 @@ class SQLStatementExtractor {
      * Extract SQL statements from array of lines.
      *
      * @param array $lines Lines of the read-in file.
-     * @return string
+     * @return array
      */
     protected static function extractStatements($lines) {
         
@@ -156,7 +156,7 @@ class SQLStatementExtractor {
     /**
      * Convert string buffer into array of lines.
      * 
-     * @param string $filename
+     * @param string $buffer
      * @return array string[] lines of file.
      */
     protected static function getLines($buffer) {       

src/Tools/TemplateImage.php

@@ -38,9 +38,6 @@ class TemplateImage
     protected $image;
     protected $_prepare = true;
     public $debug = false;
-    public $filename;
-    public $resource;
-
     public $resource;
     public $filename;