Warning: imagepng(./output/frontpage_sample.png): Failed to open stream: Permission denied in /inet/php/Image/Canvas/GD/PNG.php on line 88

Warning: fopen(./output/frontpage_sample.svg): Failed to open stream: Permission denied in /inet/php/Image/Canvas/SVG.php on line 927

Fatal error: Uncaught TypeError: fwrite(): Argument #1 ($stream) must be of type resource, bool given in /inet/php/Image/Canvas/SVG.php:928 Stack trace: #0 /inet/php/Image/Canvas/SVG.php(928): fwrite() #1 /inet/php/Image/Graph.php(836): Image_Canvas_SVG->save() #2 /inet/php/Image/Graph.php(758): Image_Graph->_done() #3 /inet/default/www/image_graph-samples/frontpage_sample.php(283): Image_Graph->done() #4 {main} thrown in /inet/php/Image/Canvas/SVG.php on line 928