動畫gd幀

Question

有沒有辦法使用php gd圖像在動畫gif中發出幀？

Answer 1

這不能用GD來完成，但我找到了一個很棒的庫。這有點複雜，所以這裏是一個鏈接到圖書館使用php製作GIF動畫。它解釋瞭如何徹底使用它。 http://www.phpclasses.org/package/3163-PHP-Generate-GIF-animations-from-a-set-of-GIF-images.html

這裏是一個PHP頁面我提出，將所有這些集成的代碼：

<?php 
if(isset($_POST['speed'])) 
{ 
    header('Content-type: image/gif'); 
    if(isset($_POST['download'])){ 
    header('Content-Disposition: attachment; filename="animated.gif"'); 
    } 
    include('GIFEncoder.class.php'); 
    function frame($image){ 
     ob_start(); 
     imagegif($image); 
     global $frames, $framed; 
     $frames[]=ob_get_contents(); 
     $framed[]=$_POST['speed']; 
     ob_end_clean(); 
    } 
    foreach ($_FILES["images"]["error"] as $key => $error) 
    { 
     if ($error == UPLOAD_ERR_OK) 
     { 
      $tmp_name = $_FILES["images"]["tmp_name"][$key]; 
      $im = imagecreatefromstring(file_get_contents($tmp_name)); 
      $resized = imagecreatetruecolor($_POST['width'],$_POST['height']); 
      imagecopyresized($resized, $im, 0, 0, 0, 0, $_POST['width'], $_POST['height'], imagesx($im), imagesy($im)); 
      frame($resized); 
     } 
    } 
    $gif = new GIFEncoder($frames,$framed,0,2,0,0,0,'bin'); 
    echo $gif->GetAnimation(); 
} 
?> 
<form action="" method="post" enctype="multipart/form-data"> 
<script src="http://code.jquery.com/jquery-latest.js"></script> 
<script src="jquery.MultiFile.js"></script> 
<script src="jquery.placeholder.js"></script> 
<input type="file" name="images[]" class="multi" /> 
<script> 
    $(function(){ 
     $('input[placeholder], textarea[placeholder]').placeholder(); 
    }); 
</script> 
    <SCRIPT language=Javascript> 
     <!-- 
     function isNumberKey(evt) 
     { 
     var charCode = (evt.which) ? evt.which : event.keyCode 
     if (charCode > 31 && (charCode < 48 || charCode > 57)) 
      return false; 

     return true; 
     } 
     //--> 
    </SCRIPT> 
<input name="speed" maxlength="10" type="text" placeholder="Speed of frames in ms" onkeypress="return isNumberKey(event)"> 
<input name="width" maxlength="4" type="text" placeholder="Width" onkeypress="return isNumberKey(event)"> 
<input name="height" maxlength="4" type="text" placeholder="Height" onkeypress="return isNumberKey(event)"> 
<input type="submit" name="download" value="Download!"> 
<input type="submit" name="preview" value="Preview!"> 
</form> 

正如你看到它引用的第一個鏈接上發現的GIFEncoder類。它也使用一些JavaScript驗證和jQuery multiupload。