Php Resize Image Problem. Get image resource id for source image. To give you an idea of what we re trying to achieve we ll begin by coding the calls we ll use to resize the images.
Imagecopyresampled resized original 0 0 0 0 new width new height width height. You need to use either php s imagemagick or gd functions to work with images. Thankfully it only takes an easy 4 lines of code to resize images in php.
R width height.
The function below will resize an image based on max width and height then it will create a thumbnail image from the center of the resized image of a width and height specified. R width height. A positive x value will take you to the right of the image and a positive y value will take you further down. Php gd has a lot of functions to copy part of an image and then resize or merge it.