Rubblewebs
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.
Imagemagick operators page 21
Write
Write an image sequence.
// Resize an image four times and save each size
$cmd = " input.jpg \( -clone 0 -thumbnail x480 -write 480_wide.jpg +delete \)".
" \( -clone 0 -thumbnail x250 -write 250_wide.jpg +delete \) ".
" \( -clone 0 -thumbnail x100 -write 100_wide.jpg +delete \) -thumbnail 64x64! null: ";
exec("convert $cmd 64_square.jpg ");