function resize($file) //voici la fonction qui redimensionne les images
{
        $size = getimagesize("test/$file");


                $dest_width = ($size[0]/6); //d?termine la taille
                $dest_eight = ($size[1]/6);

        $src_img = imagecreatefromjpeg("test/$file");
        $dst_img = imagecreatetruecolor($dest_width,$dest_eight);

        imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0,$dest_width, $dest_eight, $size[0], $size[1]);
        // la fonction qui redimensionne les photos
        imagejpeg($dst_img, "test/mini_$file",100);
        imagedestroy($src_img);
        imagedestroy($dst_img);
}

resize("oras.jpg");
?>

Call to undefined function: imagecreatefromjpeg()

 './configure' '--with-apxs2=/newapache/bin/apxs'