imagerotate
(PHP 4 >= 4.3.0, PHP 5)
imagerotate — Rotate an image with a given angle
Description
Rotates the source_image image using the given angle in degrees.
The center of rotation is the center of the image, and the rotated image is scaled down so that the whole rotated image fits in the destination image - the edges are not clipped.
Parameters
- source_image
-
The source image link
- angle
-
Rotation angle, in degrees.
- bgd_color
-
Specifies the color of the uncovered zone after the rotation
- ignore_transparent
-
If set and non-zero, transparent colors are ignored (otherwise kept).
Return Values
ChangeLog
| Version | Description |
|---|---|
| 5.1.0 | ignore_transparent was added. |
Voorbeelden
Example#1 Rotate an image 180 degrees
This example rotates an image 180 degrees - upside down.
<?php
// File and rotation
$filename = 'test.jpg';
$degrees = 180;
// Content type
header('Content-type: image/jpeg');
// Load
$source = imagecreatefromjpeg($filename);
// Rotate
$rotate = imagerotate($source, $degrees, 0);
// Output
imagejpeg($rotate);
?>
The above example will output something similar to:
Notes
Note: This function is only available if PHP is compiled with the bundled version of the GD library.