(PHP 4 >= 4.3.0, PHP 5)
imagerotate — Rotate an image with a given angle
Rotates the image image using the given angle in degrees.
The center of rotation is the center of the image, and the rotated image may have different dimensions than the original image.
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
Rotation angle, in degrees. The rotation angle is interpreted as the number of degrees to rotate the image anticlockwise.
Specifies the color of the uncovered zone after the rotation
If set and non-zero, transparent colors are ignored (otherwise kept).
Returns an image resource for the rotated image, or FALSE on failure.
|5.1.0||ignore_transparent was added.|
Example #1 Rotate an image 180 degrees
This example rotates an image 180 degrees - upside down.
// File and rotation
$filename = 'test.jpg';
$degrees = 180;
// Content type
$source = imagecreatefromjpeg($filename);
$rotate = imagerotate($source, $degrees, 0);
The above example will output something similar to:
Note: This function is only available if PHP is compiled with the bundled version of the GD library.