Tutorial by Examples

To create a blank image, use the imagecreatetruecolor function: $img = imagecreatetruecolor($width, $height); $img is now a resource variable for an image resource with $widthx$height pixels. Note that width counts from left to right, and height counts from top to bottom. Image resources can al...

An image can be created using image* functions, where * is the file format. They have this syntax in common: bool image___(resource $im [, mixed $to [ other parameters]] ) Saving to a file If you want to save the image to a file, you can pass the filename, or an opened file stream, as $to. If ...

If you have an image and want to create a new image, with new dimensions, you can use imagecopyresampled function: first create a new image with desired dimensions: // new image $dst_img = imagecreatetruecolor($width, $height); and store the original image into a variable. To do so, you may us...