Thank you for taking the time to report this bug and helping to make Ubuntu better.
As noted on the documentation page (http://php.net/manual/en/function.imagefilter.php), this function is only available if PHP is compiled with the bundled version of the GD library. This is not the case in Ubuntu, as php5 is compiled against the system gd library.
Thank you for taking the time to report this bug and helping to make Ubuntu better.
As noted on the documentation page (http:// php.net/ manual/ en/function. imagefilter. php), this function is only available if PHP is compiled with the bundled version of the GD library. This is not the case in Ubuntu, as php5 is compiled against the system gd library.