(PHP 4 >= 4.0.6, PHP 5, PHP 7) Draw a partial arc and fill it

(PHP 4, PHP 5, PHP 7) Create a new image from file or URL

(PHP 5 >= 5.5.0, PHP 7) Flips an image using a given mode

(PHP 4, PHP 5, PHP 7) Create a new image from file or URL

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Create a new image from file or URL

(PHP 4, PHP 5, PHP 7) Copy and resize part of an image

(PHP 4, PHP 5, PHP 7) Get the index of the closest color to the specified color

(PHP 4 >= 4.0.7, PHP 5, PHP 7) Create a new image from GD file or URL

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Create a new image from file or URL

(PHP 5 >= 5.4.0, PHP 7) Get the size of an image from a string