Please try again. Sometimes 'gd' doesn't load on SoloLearn
It's usually extension 28

";
  print_r($extensions);
  echo "

"; die(1); } $img = imagecreatetruecolor(300,300); $color = imagecolorallocate($img, 0x02, 0xc0, 0x50); $yellow = imagecolorallocate($img, 0xff, 0xff, 0x00); $filename = 'tmp.png'; imagepng($img, $filename); // imagesvg, imagejpg, ... imagearc($img, 140,75, 50,50, 0, 360, $color); imagesetthickness($img, 3); imageline($img, 10,10, 75,90, $color); imagesetthickness($img, 9); imageline($img, 100,100, 35,199, $yellow); imagepng($img, $filename); imagedestroy($img); // mime_content_type() and finfo() aren't working here :( $contentType = 'image/png'; // workaround ../Playground bug!!! makes this more complex than I wanted :( // base64_encode suffers from the Sololearn ../Playground bug, which corrupts the output image /* // Otherwise this would work fine $out = 'data:'. $contentType .';base64,'. base64_encode(file_get_contents($filename)); // works fine, but let's leave PHP and show immediate echo in HTML //echo "

"; */ // from php docs function urlsafe_b64encode($string) { $data = base64_encode($string); $data = str_replace(array('+','/','='),array('-','_',''),$data); return $data; } $safeBase64 = urlsafe_b64encode(file_get_contents($filename)); ?>

php server: create image / list extensions [bugfix]