Gd

Methods

__construct(string $file) : void

Run install check and load the image.
check() : bool

Checks if GD is enabled and bundled. Bundled GD is required for some methods to work.
__destruct() : void

Destroys the loaded image to free up resources.
loadImage() : void

Loads an image into GD.
doResize(int $width, int $height) : void

Execute a resize.
doCrop(int $width, int $height, int $offsetX, int $offsetY) : void

Execute a crop.
doRotate(int $degrees) : void

Execute a rotation.
doFlip(int $direction) : void

Execute a flip.
doSharpen(int $amount) : void

Execute a sharpen.
doReflection(int $height, int $opacity, bool $fadeIn) : void

Execute a reflection.
doWatermark(variable $watermark, int $offsetX, int $offsetY, int $opacity) : void

Execute a watermarking.
doBackground(int $r, int $g, int $b, int $opacity) : void

Execute a background.
doSave(string $file, variable $quality) : bool

Execute a save.
doRender(string $type, variable $quality) : string

Execute a render.
saveFunction(string $extension, int $quality) : array

Get the GD saving function and image type for this extension.
create(int $width, int $height) : resource

Create an empty image with the given width and height.

Methods Details

public function __construct(string $file)

Run install check and load the image.
public static function check()

Checks if GD is enabled and bundled. Bundled GD is required for some methods to work.

Exceptions will be thrown from those methods when GD is not bundled.
public function __destruct()

Destroys the loaded image to free up resources.
protected function loadImage()

Loads an image into GD.
protected function doResize(int $width, int $height)

Execute a resize.
protected function doCrop(int $width, int $height, int $offsetX, int $offsetY)

Execute a crop.
protected function doRotate(int $degrees)

Execute a rotation.
protected function doFlip(int $direction)

Execute a flip.
protected function doSharpen(int $amount)

Execute a sharpen.
protected function doReflection(int $height, int $opacity, bool $fadeIn)

Execute a reflection.
protected function doWatermark(variable $watermark, int $offsetX, int $offsetY, int $opacity)

Execute a watermarking.
protected function doBackground(int $r, int $g, int $b, int $opacity)

Execute a background.
protected function doSave(string $file, variable $quality)

Execute a save.
protected function doRender(string $type, variable $quality)

Execute a render.
protected function saveFunction(string $extension, int $quality)

Get the GD saving function and image type for this extension.

Also normalizes the quality setting
protected function create(int $width, int $height)

Create an empty image with the given width and height.