<?php
class?image{
?
????private?$info;
	private?$image;
????//打開圖片
????public?function?__construct($src){
????//圖片信息?
????$info=getimagesize($src);
????$this->info=array(
	???'width'=>$info[0],
	???'height'=>$info[1],
	???'type'=>image_type_to_extension($this->info[2],false),
???????'mime'=>$info['mime']
????);
????$fun="imagecreatefrom{$this->info['type']}";
????$this->image=$fun($src);
???}?

???//壓縮操作
???public?function?thumb($width,$height){
???????$image_thumb=imagecreatetruecolor($width,$height);
???????imagecopyresampled($image_thumb,$this->image,0,0,0,0,$width,$height,$this->info['width'],$this->info['height']);
???????imagedestroy($this->image);
	???$this->image=$image_thumb;
???}

??//輸出圖片到瀏覽器
???public?function?show(){
?????header("Content-type:".$this->info['mime']);
	?$func="image{$this->info['type']}";
	?$func($this->image);
?}
?//保存到硬盤中
??public?function?save($newname){
?????$func="image{$this->info['type']}";
	?$func($this->image,$newname.'.'.$this->info['type']);
??}
??//銷毀圖片
??public?function?__destruct(){
???imagedestroy($this->image);
??}
??}
?>

Fatal error: Call to undefined function imagecreatefrom() in?D:\phpStudy\WWW\web\image.class.php?on line?17