imagerotate

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

imagerotateRotate an image with a given angle

Description

imagerotate(
    GdImage $image,
    float $angle,
    int $background_color,
    bool $ignore_transparent = false
): GdImage|false

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.

Parameters

image

A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().

angle

Rotation angle, in degrees. The rotation angle is interpreted as the number of degrees to rotate the image anticlockwise.

background_color

Specifies the color of the uncovered zone after the rotation

ignore_transparent

This parameter is unused.

Return Values

Returns an image object for the rotated image, or false on failure.

Changelog

Version Description
8.0.0 On success, this function returns a GDImage instance now; previously, a resource was returned.
8.0.0 image expects a GdImage instance now; previously, a resource was expected.
8.0.0 The unused ignore_transparent expects a bool now; previously it expected an int.

Examples

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$degrees0);

// Output
imagejpeg($rotate);

// Free the memory
imagedestroy($source);
imagedestroy($rotate);
?>

The above example will output something similar to:

Output of example : Rotate an image 180 degrees

Notes

Note:

This function is affected by the interpolation method set by imagesetinterpolation().

See Also

Here you can write a comment


Please enter at least 10 characters.
Loading... Please wait.
* Pflichtangabe
There are no comments available yet.

PHP cURL Tutorial: Using cURL to Make HTTP Requests

cURL is a powerful PHP extension that allows you to communicate with different servers using various protocols, including HTTP, HTTPS, FTP, and more. ...

TheMax

Autor : TheMax
Category: PHP-Tutorials

Midjourney Tutorial - Instructions for beginners

There is an informative video about Midjourney, the tool for creating digital images using artificial intelligence, entitled "Midjourney tutorial in German - instructions for beginners" ...

Mike94

Autor : Mike94
Category: KI Tutorials

Basics of views in MySQL

Views in a MySQL database offer the option of creating a virtual table based on the result of an SQL query. This virtual table can be queried like a normal table without changing the underlying data. ...

admin

Autor : admin
Category: mySQL-Tutorials

Publish a tutorial

Share your knowledge with other developers worldwide

Share your knowledge with other developers worldwide

You are a professional in your field and want to share your knowledge, then sign up now and share it with our PHP community

learn more

Publish a tutorial