THESE CODES ARE PROVIDED FOR AN EXAMPLE OF HOW TO USE IMAGEMAGICK WITH PHP. CARE SHOULD BE TAKEN WHEN ACCEPTING USER INPUT.
I TAKE NO RESPONSABILTY FOR ANY PROBLEMS THAT MAY OCCURE WHEN USING ANY OF THIS CODE.
IT IS UP TO YOU TO SECURE THE CODE AND VALIDATE USER INPUT.
$cmd = " -dissolve 30% -tile $input15 $input14 ";
exec("composite $cmd watermark_image_colour.jpg");
// Alternative method
exec("composite -watermark 30% -tile $input15 $input14 watermark_image_multi.jpg");