note 72439 added to function.imagepng

The documentation is wrong. The second argument (filename) cannot be NULL. If it is set to NULL, imagepng() will try to save the resultant image to a '' filename which generates a warning. The only way to have the image output directly is to leave off the second argument entirely, or to use the hidden third and fourth options $compression and $filter. ---- Server IP: 64.71.164.2 Probable Submitter: 67.53.92.74 ---- Manual Page -- http://www.php.net/manual/en/function.imagepng.php Edit -- https://master.php.net/note/edit/72439 Del: integrated -- https://master.php.net/note/delete/72439/integrated Del: useless -- https://master.php.net/note/delete/72439/useless Del: bad code -- https://master.php.net/note/delete/72439/bad+code Del: spam -- https://master.php.net/note/delete/72439/spam Del: non-english -- https://master.php.net/note/delete/72439/non-english Del: in docs -- https://master.php.net/note/delete/72439/in+docs Del: other reasons-- https://master.php.net/note/delete/72439 Reject -- https://master.php.net/note/reject/72439 Search -- https://master.php.net/manage/user-notes.php