php将文件转换GIF图片

 

<?php

$str = "百度";
$str=iconv("GBK", "UTF-8",$str);
$im = imagecreate(595,822);
$white = imagecolorallocate($im,0xFF,0xFF,0xFF);
$black = imagecolorallocate($im,0,0,0);
imagettftext($im,12,0,10,30,$black,"simsun.ttc",$str); //向图像写入文本
header("Content-type:image/gif");
imagepng($im);
?>