--TEST-- write_to_file can set options --SKIPIF-- --FILE-- 20]); vips_image_write_to_file($image, $output_filename2, ["Q" => 90]); $buffer1 = file_get_contents($output_filename1); $buffer2 = file_get_contents($output_filename2); if (strlen($buffer1) < strlen($buffer2)) { echo "pass"; } ?> --EXPECT-- pass --CLEAN--