代碼如下：

<?php

$src = "001.jpg";

$info = getimagesize($src);

$type = image_type_to_extension($info[2],false);

$fun = "imagecreatefrom($type)";

$image = $fun($src);

$font = "msyh.ttf";

$content = "你好，慕課";

$col = imagecolorallocatealpha($image,255,255,255,50);

imagettftext($image,20,0,20,30,$col,$font,$content);

header("Content-type:".$info['mime']);

$func = "image($type)";

$func($image);

?>

網頁上顯示

Fatal error: Call to undefined function imagecreatefrom(jpeg)() in?D:\PHP\XAMPP\htdocs\image\fontmark.php?on line?6

就是$image = $fun($src);這一行出問題了。。