Warning: imagecreatefromjpeg(7.jpg) [function.imagecreatefromjpeg]: failed to open stream: No such file or directory in D:\wwwroot\love\cs1.php on line 41Warning: imagesx(): supplied argument is not a valid Image resource in D:\wwwroot\love\cs1.php on line 46Warning: imagesy(): supplied argument is not a valid Image resource in D:\wwwroot\love\cs1.php on line 47Warning: Division by zero in D:\wwwroot\love\cs1.php on line 51Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in D:\wwwroot\love\cs1.php on line 91Warning: imagecopyresampled(): supplied argument is not a valid Image resource in D:\wwwroot\love\cs1.php on line 92Warning: imagejpeg(): supplied argument is not a valid Image resource in D:\wwwroot\love\cs1.php on line 94
$img->imagejpeg($new_img,$tar_url);
这样没问题:但怎么通过表单传图片<?PHP
$source_img = "IT服装2.png";
echo $source_img;
$target_dir='./2222/';
$new_width=112;
$new_height=137;
$if_cut=0;
$target_name='1';
$img=new HanroadClass;
$img->HrResize($source_img,$target_dir,$target_name,$new_width,$new_height,$if_cut);
class HanroadClass
{
/**//**********************
利用PHP的GD库生成缩略图。
支持图片格式:jpg,gif,png
$source_img: 源图象完整路径
$target_dir: 目标图象目录
$target_name: 目标图象名称
$new_width: 目标图象宽
$new_height: 目标图象高
$if_cut: 是否裁图
1(裁图): 裁图则按设置的大小生成目标图象
0(不裁): 不裁则按比例生成目标图象
**********************/
function HrResize($source_img,$target_dir,$target_name,$new_width,$new_height,$if_cut)
{
//图片类型
$img_type = strtolower(substr(strrchr($source_img,"."),1));
//图象的完整目标路径
$tar_url = $target_dir."/".$target_name.".".$img_type;
//初始化图象
if($img_type=="jpg") $temp_img = imagecreatefromjpeg($source_img);
if($img_type=="gif") $temp_img = imagecreatefromgif($source_img);
if($img_type=="png") $temp_img = imagecreatefrompng($source_img);
//原始图象的宽和高
$old_width = imagesx($temp_img);
$old_height = imagesy($temp_img);
//改变前后的图象的比例
$new_ratio = $new_width/$new_height;
$old_ratio = $old_width/$old_height;
//生成新图象的参数
//情况一:裁图 则按设置的大小生成目标图象
if($if_cut=="1")
{
$new_width = $new_width;
$new_height = $new_height;
//高度优先
if($old_ratio>=$new_ratio)
{
$old_width = $old_height*$new_ratio;
$old_height = $old_height;
}
//宽度优先
else
{
$old_width = $old_width;
$old_height = $old_width/$new_ratio;
}
}
//情况二:不裁图 则按比例生成目标图象
else
{
$old_width = $old_width;
$old_height = $old_height;
//高度优先
if($old_ratio>=$new_ratio)
{
$new_width = $new_width;
$new_height = $new_width/$old_ratio;
}
//宽度优先
else
{
$new_width = $new_height*$old_ratio;
$new_height = $new_height;
}
}
//生成新图片
$new_img = imagecreatetruecolor($new_width,$new_height);
imagecopyresampled($new_img,$temp_img,0,0,0,0,$new_width,$new_height,$old_width,$old_height);
if($img_type=="jpg") imagejpeg($new_img,$tar_url);
if($img_type=="gif") imagegif($new_img,$tar_url);
if($img_type=="png") imagepng($new_img,$tar_url);
}
}
?>
<table width="112" height="137" border="0" cellpadding="1" cellspacing="1" bordercolor="#CCCCCC" bgcolor="#CCCCCC">
<tr>
<td bgcolor="#FCFCFC"><div align="center"><img src="<? echo("./图片/".$source_img.".jpg?reload=".rand(0,999999)); ?>" /></div></td>
</tr>
</table>
<br><br>
<form enctype="multipart/form-data" method="post">
<br>
<input type="file" name="image" size="50" value="浏览"><p>
<input type="submit" value="上传图片">
</form>
</body>
</html>
<br>
<input type="file" name="image" size="50" value="浏览"><p>
<input type="submit" value="上传图片">
</form> 传给变量 $source_img $source_img = "IT服装2.png";这段代码应该怎么写??
if(is_array($upload_postfile)){
$up_file=$upload_postfile["tmp_name"];
$up_file_name=$upload_postfile["name"];
$up_file_type=$upload_postfile["type"];
$up_file_size=$upload_postfile["size"];
}else{
$up_file=$upload_postfile;
$up_file_name=$upload_postfile_name;
$up_file_type=$upload_postfile_type;
$up_file_size=$upload_postfile_size;
}