fix deprecated string

rokka-io · Feb 26, 2024 · cf22b9f · cf22b9f
1 parent 1994dc5
commit cf22b9f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/Rokka.php b/src/Rokka.php
@@ -161,8 +161,8 @@ public static function getStackUrl(string $operation, File $file, $width, $heigh
     if ($extension == 'svg') {
       $format = $extension;
     }
-    if (isset($stacks["${operation}-${width}x${height}"])) {
-      $stack = $stacks["${operation}-${width}x${height}"];
+    if (isset($stacks["{$operation}-{$width}x{$height}"])) {
+      $stack = $stacks["{$operation}-{$width}x{$height}"];
     } else {
       // check if we have a stack configuration for this variable with w setting, then we can use the shorter URLs.
       $config = self::getStackConfiguration($operation, $operation);