GifCreator is a PHP class that creates animated GIF from multiple images

Related tags

Imagery GifCreator
Overview

================================

GifCreator

================================

GifCreator is a PHP class to create animated GIF from multiple images

For what ?

This class helps you to create an animated GIF image: give multiple images and their duration and that's it !

Usage

1 - Creation:

// Create an array containing file paths, resource var (initialized with imagecreatefromXXX), 
// image URLs or even binary code from image files.
// All sorted in order to appear.
$frames = array(
    imagecreatefrompng("/../images/pic1.png"), // Resource var
    "/../images/pic2.png", // Image file path
    file_get_contents("/../images/pic3.jpg"), // Binary source code
    'http://thisisafakedomain.com/images/pic4.jpg', // URL
);

// Create an array containing the duration (in millisecond) of each frames (in order too)
$durations = array(40, 80, 40, 20);

// Initialize and create the GIF !
$gc = new GifCreator();
$gc->create($frames, $durations, 5);

The 3rd parameter of create() method allows you to choose the number of loop of your animated gif before it stops. In the previous example, I chose 5 loops. Set 0 (zero) to get an infinite loop.

2 - Get the result:

You can now get the animated GIF binary:

$gifBinary = $gc->getGif();

Then you can show it in the navigator:

header('Content-type: image/gif');
header('Content-Disposition: filename="butterfly.gif"');
echo $gifBinary;
exit;

Or save it in a folder as a GIF:

file_put_contents('/myfolder/animated_picture.gif', $gifBinary);

Behavior

  • The transparency is based on the first given frame. It will be saved only if you give multiple frames with same transparent background.
  • The dimensions of the generated GIF are based on the first frame. If you need to resize your frames to get the same dimension, you can use this class: https://github.com/Sybio/ImageWorkshop

About

The class reuses some part of code of "GIFEncoder.class.php" by László Zsidi (thanks to him).

Comments
  • Problems with transparent gif

    Problems with transparent gif

    HI,

    I found that after create any gif with transparence the new gif in transparent part has black layers moving. @Sybio did you see this problem before? Could you solve this? Thank you!

    Regards

    opened by dpcat237 2
  • Create composer version

    Create composer version

    Hi

    Can you create a tagged stable version number in git please so that I can use your library in composer without setting the minimum-stability flag to dev?

    Thanks ;)

    opened by lboynton 2
  • init $this->frameSources array in create method

    init $this->frameSources array in create method

    This little change gives ability to chain method calls in my project which is using your great library without need of recreation the GifCreator Object.

    opened by glukash 1
  • Deprecated: Array and string offset access syntax with curly braces is deprecated in GifCreator.php

    Deprecated: Array and string offset access syntax with curly braces is deprecated in GifCreator.php

    Deprecated: Array and string offset access syntax with curly braces is deprecated in GifCreator.php on line 135.

    Using PHP 7.4.2

    Error can be fixed by replacing { 10 } with [10] in the code at several lines;

    opened by JanValkenburg 0
  • Too much Memory Required

    Too much Memory Required

    Dont work if pass paths? work only with imagecreatefrom()...

    find better way

    $GIF = new Imagick();
$GIF->setFormat("gif");

 for ($i = 0; $i < sizeof($gifFrames); ++$i) {
            $frame = new Imagick();
            $frame->readImage($gifFrames[$i]);
            $frame->setImageDelay(100);
            $GIF->addImage($frame);
        }

    Imagick === No memory leak

    opened by evtuhovdo 0
  • Gif is too large

    Gif is too large

    I have tested much times making gif from 11 jpg/jpeg images,the result is too large over 450kb. Does GifCreator has some options or method to compress gif file? Thanks a lot!

    opened by nicecp 0
  • Unable to create Gif (even though it's been working fine in many other similar occasions)

    Unable to create Gif (even though it's been working fine in many other similar occasions)

    Warning: imagecreatefromstring(): gd-png: fatal libpng error: Read Error: truncated data in /Users/Flo/GitHub/whiteboard-comics/GifCreator.php on line 113

    Warning: imagecreatefromstring(): gd-png error: setjmp returns error condition in /Users/Flo/GitHub/whiteboard-comics/GifCreator.php on line 113

    Warning: imagecreatefromstring(): Passed data is not in 'PNG' format in /Users/Flo/GitHub/whiteboard-comics/GifCreator.php on line 113

    Warning: imagecreatefromstring(): Couldn't create GD Image Stream out of Data in /Users/Flo/GitHub/whiteboard-comics/GifCreator.php on line 113

    Fatal error: Uncaught exception 'Exception' with message 'GifCreator: Under development: 171 Source is not a GIF image.' in /Users/Flo/GitHub/whiteboard-comics/GifCreator.php:132 Stack trace: #0 /Users/Flo/GitHub/whiteboard-comics/test.php(23): GifCreator\GifCreator->create(Array, Array, 0) #1 {main} thrown in /Users/Flo/GitHub/whiteboard-comics/GifCreator.php on line 132

    opened by Sheraff 1
  • Compression artifacts on Windows

    Compression artifacts on Windows

    GifCreator is working great on Mac/Linux, however when using it on a Windows machine, the output has some heavy compression artifacts, more visible dithering, banding and color shifts between frames for example.

    Mac output: mac

    Windows output: windows

    Any idea how this is caused?

    opened by eddial 0
Owner
Clément Guillemain
Clément Guillemain
GitHub
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