(PHP 4 >= 4.3.0, PHP 5, PHP 7)
imagerotate — Rotate an image with a given angle
$ignore_transparent= 0 ] )
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.
|5.5.0||This function is now affected by the interpolation method set by the imagesetinterpolation() function.|
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);
// Free the memory
The above example will output something similar to:
This function is affected by the interpolation method set by imagesetinterpolation().