＋设为首页 ＋添加到收藏夹
<html>
<head>
<title>生成微缩图</title>
</head>
<body>
<?php
function makethumb($srcFile,$dstFile,$dstW,$dstH)
{
$data=GetImageSize($srcFile);
switch($data[2])
{
case 1:
$imgsrc=@ImageCreateFromGIF($srcFile);
break;
case 2:
$imgsrc=@ImageCreateFromJPEG($srcFile);
break;
case 3:
$imgsrc=@ImageCreateFromPNG($srcFile);
break;
}
$srcW=ImageSX($imgsrc);
$srcH=ImageSY($imgsrc);
$ni=ImageCreate($dstW,$dstH);
ImageCopyResized($ni,$imgsrc,0,0,0,0,$dstW,$dstH,$srcW,$srcH);
return ImagePNG($ni);
}
?>
<?php
$img=makethumb("1.jpg","",20,20);
Header( "Content-type:image/PNG");
echo $img->Image;
?>
</body>
</html>
<?php
function makethumb($srcFile,$dstFile,$dstW,$dstH)
{
$data=GetImageSize($srcFile);
switch($data[2])
{
case 1:
$imgsrc=@ImageCreateFromGIF($srcFile);
break;
case 2:
$imgsrc=@ImageCreateFromJPEG($srcFile);
break;
case 3:
$imgsrc=@ImageCreateFromPNG($srcFile);
break;
}
$srcW=ImageSX($imgsrc);
$srcH=ImageSY($imgsrc);
$ni=ImageCreate($dstW,$dstH);
ImageCopyResized($ni,$imgsrc,0,0,0,0,$dstW,$dstH,$srcW,$srcH);
return ImagePNG($ni);
}
Header( "Content-type:image/PNG");
$img=makethumb("0008.jpg","",20,20);
echo $img->Image;
?>
Header( "Content-type:image/PNG");
放在makethumb上面看看
<?php 前面不要有换行
<?php ?>
外面不要有空白行
呵呵，我也是php外行
<?php
function makethumb($srcFile,$dstFile,$dstW,$dstH)
{
$data=GetImageSize($srcFile);
switch($data[2])
{
case 1:
$imgsrc=@ImageCreateFromGIF($srcFile);
break;
case 2:
$imgsrc=@ImageCreateFromJPEG($srcFile);
break;
case 3:
$imgsrc=@ImageCreateFromPNG($srcFile);
break;
}
$srcW=ImageSX($imgsrc);
$srcH=ImageSY($imgsrc);
$ni=ImageCreate($dstW,$dstH);
ImageCopyResized($ni,$imgsrc,0,0,0,0,$dstW,$dstH,$srcW,$srcH);
ImagePNG($ni);
}
Header( "Content-type:image/PNG");
makethumb("1.jpg","",20,20);
?>
只需要这么多
<?
$FILENAME="1";
// 生成图片的宽度
$RESIZEWIDTH=20;
// 生成图片的高度
$RESIZEHEIGHT=20;
function ResizeImage($im,$maxwidth,$maxheight,$name){
$width = imagesx($im);
$height = imagesy($im);
if(($maxwidth && $width > $maxwidth) || ($maxheight && $height > $maxheight)){
if($maxwidth && $width > $maxwidth){
$widthratio = $maxwidth/$width;
$RESIZEWIDTH=true;
}
if($maxheight && $height > $maxheight){
$heightratio = $maxheight/$height;
$RESIZEHEIGHT=true;
}
if($RESIZEWIDTH && $RESIZEHEIGHT){
if($widthratio < $heightratio){
$ratio = $widthratio;
}else{
$ratio = $heightratio;
}
}elseif($RESIZEWIDTH){
$ratio = $widthratio;
}elseif($RESIZEHEIGHT){
$ratio = $heightratio;
}
$newwidth = $width * $ratio;
$newheight = $height * $ratio;
if(function_exists("imagecopyresampled")){
$newim = imagecreatetruecolor($newwidth, $newheight);
imagecopyresampled($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
}else{
$newim = imagecreate($newwidth, $newheight);
imagecopyresized($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
}
ImageJpeg ($newim,$name . ".jpg");
ImageDestroy ($newim);
}else{
ImageJpeg ($im,$name . ".jpg");
}
}
if($_FILES[zhaopian_up][size]){
if($_FILES[zhaopian_up][type] == "image/pjpeg"){
$im = imagecreatefromjpeg($_FILES[zhaopian_up][tmp_name]);
}elseif($_FILES[zhaopian_up][type] == "image/x-png"){
$im = imagecreatefrompng($_FILES[zhaopian_up][tmp_name]);
}elseif($_FILES[zhaopian_up][type] == "image/gif"){
$im = imagecreatefromgif($_FILES[zhaopian_up][tmp_name]);
}
if($im){
if(file_exists("$FILENAME.jpg")){
unlink("$FILENAME.jpg");
}
ResizeImage($im,$RESIZEWIDTH,$RESIZEHEIGHT,$FILENAME);
ImageDestroy ($im);
}
}
?>
<html><body><script language="JavaScript">
<!--
function CheckForm(theForm)
{
var fileext=theForm.zhaopian_up.value.substring(theForm.zhaopian_up.value.length-4,theForm.zhaopian_up.value.length)
fileext=fileext.toLowerCase()
if (!(fileext==.jpg || fileext==.png))
{alert("对不起，不正确的照片文件,必须为*.jpg或*.png文件 ！");
theForm.zhaopian_up.focus();
return false;
}
return true;
}
// -->
</SCRIPT>
<img src="<? echo($FILENAME.".jpg?reload=".rand(0,999999)); ?>"><br><br>
<FORM ENCTYPE="multipart/form-data" ACTION="yht4.php" METHOD="POST" onsubmit="return CheckForm(this)">
<p class="big"> 上传照片：</p>
<input type="file" name="zhaopian_up" size="20"> <INPUT TYPE="submit" value="上传">
</form>
</body>
</html>
