帶有PHP動畫GIF圖像

我想創建一個帶有透明背景的動畫像素的GIF圖像，該圖像從Javascript獲取顏色。我試過用這個： http://www.phpclasses.org/package/3163-PHP-Generate-GIF-animations-from-a-set-of-GIF-images.html 而這個：http://www.jeroenvanwissen.nl/weblog/php/howto-generate-animated-gif-with-php 但是，我有一個問題。我創造了這個代碼：帶有PHP動畫GIF圖像

<?php 
header ('Content-type:image/gif'); 
include('GIFEncoder.class.php'); 

// Open the first source image and add the text. 
$image = imagecreatefrompng('None.png'); 
imagesavealpha($image, true); 
$color = $_GET["sc"]; 
$r_bg = hexdec(substr($color,0,2)); 
$g_bg = hexdec(substr($color,2,2)); 
$b_bg = hexdec(substr($color,4,2)); 
$c1 = imagecolorallocate($image, $r_bg, $g_bg, $b_bg); 
imagesetpixel($image,36,24,$c1); 
imagesetpixel($image,36,25,$c1); 
imagesetpixel($image,36,26,$c1); 
imagesetpixel($image,37,26,$c1); 
imagesetpixel($image,38,26,$c1); 
imagesetpixel($image,38,25,$c1); 
imagesetpixel($image,38,24,$c1); 
imagesetpixel($image,37,24,$c1); 

// Generate GIF from the $image 
// We want to put the binary GIF data into an array to be used later, 
// so we use the output buffer. 
ob_start(); 
imagegif($image); 
$frames[]=ob_get_contents(); 
$framed[]=40; 

// Delay in the animation. 
ob_end_clean(); 

// And again.. 
// Open the first source image and add the text. 
$image = imagecreatefrompng('None.png'); 
imagesavealpha($image, true); 
$color = $_GET["sc"]; 
$r_bg = hexdec(substr($color,0,2)); 
$g_bg = hexdec(substr($color,2,2)); 
$b_bg = hexdec(substr($color,4,2)); 
$c1 = imagecolorallocate($image, $r_bg, $g_bg, $b_bg); 
imagesetpixel($image,34,23,$c1); 
imagesetpixel($image,34,24,$c1); 
imagesetpixel($image,34,25,$c1); 
imagesetpixel($image,34,26,$c1); 
imagesetpixel($image,34,27,$c1); 
imagesetpixel($image,35,28,$c1); 
imagesetpixel($image,36,28,$c1); 
imagesetpixel($image,37,28,$c1); 
imagesetpixel($image,38,28,$c1); 
imagesetpixel($image,39,28,$c1); 
imagesetpixel($image,40,27,$c1); 
imagesetpixel($image,40,26,$c1); 
imagesetpixel($image,40,25,$c1); 
imagesetpixel($image,40,24,$c1); 
imagesetpixel($image,40,23,$c1); 
imagesetpixel($image,39,22,$c1); 
imagesetpixel($image,38,22,$c1); 
imagesetpixel($image,37,22,$c1); 
imagesetpixel($image,36,22,$c1); 
imagesetpixel($image,35,22,$c1); 

// Generate GIF from the $image 
// We want to put the binary GIF data into an array to be used later, 
// so we use the output buffer. 
ob_start(); 
imagegif($image); 
$frames[]=ob_get_contents(); 
$framed[]=40; 

// Delay in the animation. 
ob_end_clean(); 

// Generate the animated gif and output to screen. 
$gif = new GIFEncoder($frames,$framed,0,2,0,0,0,'bin'); 
echo $gif->GetAnimation(); 
?>

我得到一個十六進制顏色代碼，然後將其轉換爲RGB。但是，我得到這些錯誤：

<br /> 
<b>Notice</b>: Use of undefined constant ERR00 - assumed 'ERR00' in <b>D:\Testing\xampp\htdocs\Test\Test.php</</b> on line <b>75</b><br /> 
<br /> 
<b>Notice</b>: Use of undefined constant ERR01 - assumed 'ERR01' in <b>D:\Testing\xampp\htdocs\Test\Test.php</</b> on line <b>75</b><br /> 
<br /> 
<b>Notice</b>: Use of undefined constant ERR02 - assumed 'ERR02' in <b>D:\Testing\xampp\htdocs\Test\Test.php</b> on line <b>75</b><br /> 
<br /> 
<b>Notice</b>: Use of undefined constant ERR03 - assumed 'ERR03' in <b>D:\Testing\xampp\htdocs\Test\Test.php</b> on line <b>75</b><br /> 
GIF89a2

我不知道這就是問題所在。：/

來源

2012-08-28 user1630441

檢查你的GIFEncoder類。有一些未定義的變量。嘗試檢查empty($for_all_vars);

或檢查this了。

來源

2012-08-28 14:08:42

供將來參考：今天我有這個錯誤。發生這種情況的原因是該10多年前的庫存在錯誤的語法。在定義了$ERR數組的情況下，數組鍵的引號缺失。

正確的代碼片斷必須是：

var $ERR = Array (
    'ERR00'=>"Does not supported function for only one image!", 
    'ERR01'=>"Source is not a GIF image!", 
    'ERR02'=>"Unintelligible flag ", 
    'ERR03'=>"Does not make animation from animated GIF source", 
);

（注意周圍ERR00到ERR03引號，這些缺少的網絡上漂浮的原始文件。）

希望這幫助某人。

來源

2017-05-10 20:35:04 Christallkeks

帶有PHP動畫GIF圖像

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