- Fixed: Bug #9823 (Failing tests with PHP 5.1)

  # Test failed because of
  # a) (string) does not call __toString (now skipped)
  # b) different null parameter handling between 5.1 and 5.2 in imagepng
  #    (workaround)

1 files changed, 8 insertions, 1 deletions

diff --git a/src/driver/gd.php b/src/driver/gd.php
index d094bfd..19fa85d 100644
--- a/src/driver/gd.php
+++ b/src/driver/gd.php
@@ -1077,7 +1077,14 @@ class ezcGraphGdDriver extends ezcGraphDriver
         switch ( $this->options->imageFormat )
         {
             case IMG_PNG:
-                imagepng( $image, $file );
+                if ( $file === null )
+                {
+                    imagepng( $image );
+                }
+                else
+                {
+                    imagepng( $image, $file );
+                }
                 break;
             case IMG_JPEG:
                 imagejpeg( $image, $file, $this->options->jpegQuality );