coding style

src/Phinx/Util/Util.php

@@ -57,6 +57,13 @@ public static function getCurrentTimestamp(?int $offset = null): string
         return $dt->format(static::DATE_FORMAT);
     }
 
+    /**
+     * Checks that the given timestamp is a unique prefix for any files in the given path.
+     *
+     * @param string $path Path to check
+     * @param string $timestamp Timestamp to check
+     * @return bool
+     */
     public static function isUniqueTimestamp(string $path, string $timestamp): bool
     {
         return !count(static::glob($path. DIRECTORY_SEPARATOR . $timestamp . '*.php'));
@@ -107,11 +114,18 @@ public static function getVersionFromFileName(string $fileName): int
         return $value;
     }
 
+    /**
+     * Given a string, convert it to snake_case.
+     *
+     * @param string $string String to convert
+     * @return string
+     */
     public static function toSnakeCase(string $string): string
     {
         $snake = function ($matches) {
             return '_' . strtolower($matches[0]);
         };
+
         return preg_replace_callback('/\d+|[A-Z]/', $snake, $string);
     }
 
@@ -121,7 +135,6 @@ public static function toSnakeCase(string $string): string
      * '12345678901234_limit_resource_names_to_30_chars.php'.
      *
      * @deprecated Will be removed in 0.17.0
-     *
      * @param string $className Class Name
      * @return string
      */