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PHP 上传图片，生成水印，支持文字， gif, png

2017-01-23 11:06 946 查看

//admin_upfile.php

<html>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<?php
//这里上传 $upsize判断上传文件的大小
$uppath = isset($_REQUEST["upPath"]) ? $_REQUEST["upPath"] : "/attached/";              //文件上传路径
$formName = isset($_REQUEST["formName"]) ? $_REQUEST["formName"] : $_REQUEST["formName"];          //回传到上页面编辑框所在Form的Name
$editName = isset($_REQUEST["editName"]) ? $_REQUEST["editName"] : $_REQUEST["editName"];              //回传到上页面编辑框的Name
//转换根目录的路径
if (strpos($uppath, "/") == 0) {
$i = 0;
$thpath = $_SERVER["SCRIPT_NAME"];
$thpath = substr($thpath, 1, strlen($thpath));
while (strripos($thpath, "/") !== false) {
$thpath = substr($thpath, strpos($thpath, "/") + 1, strlen($thpath));
$i = ++$i;
}

$pp = "";
for ($j = 0; $j < $i; ++$j) {
$pp .="../";
}

$uppaths = $pp . substr($uppath, 1, strlen($thpath));
}
$filename = date("y-m");
if (is_dir($uppaths . $filename) != TRUE)
mkdir($uppaths . $filename, 0777);
// if(is_dir($filename."/".$ctime)!=TRUE) mkdir($filename."/".$ctime,0777);

$f = $_FILES['file1'];

/*if ($f["type"] != "image/gif" && $f["type"] != "image/pjpeg" && $f["type"] != "image/jpeg" && $f["type"] != "image/x-png") {
echo "<script>alert('只能上传图片格式的文件');window.close()</script>";
//echo $f['type'];
return false;
}
*/

//获得文件扩展名
$temp_arr = explode(".", $f["name"]);
$file_ext = array_pop($temp_arr);
$file_ext = trim($file_ext);
$file_ext = strtolower($file_ext);

//新文件名
$new_file_name = md5(date("YmdHis") . '_' . rand(10000, 99999)) . '.' . $file_ext;

$dest = $uppaths . $filename . "/" . $new_file_name; //设置文件名为日期加上文件名避免重复 上传目录
$dest1 = $uppath . $filename . "/" . $new_file_name; //设置文件名为日期加上文件名避免重复

$image_size = getimagesize($f['tmp_name']);
$r = move_uploaded_file($f['tmp_name'], $dest);
if($r){
$uptypes=array(
'image/jpg',
'image/jpeg',
'image/png',
'image/pjpeg',
'image/gif',
'image/bmp',
'image/x-png'
);
$max_file_size=2000000; //上传文件大小限制, 单位BYTE
$destination_folder="attached/"; //上传文件路径
$watermark=1; //是否附加水印(1为加水印,其他为不加水印);
$watertype=2; //水印类型(1为文字,2为图片)
$waterposition=5; //水印位置(1为左下角,2为右下角,3为左上角,4为右上角,5为居中);
$waterstring="Thinfo.org"; //水印字符串
$waterimg="wart.png"; //水印图片
$imgpreview=0; //是否生成预览图(1为生成,其他为不生成);
$imgpreviewsize=1/1; //缩略图比例
if($watermark==1)
{
$iinfo=getimagesize($dest,$iinfo);

$nimage=imagecreatetruecolor($image_size[0],$image_size[1]);
$white=imagecolorallocate($nimage,255,255,255);
$black=imagecolorallocate($nimage,0,0,0);
$red=imagecolorallocate($nimage,255,0,0);
imagefill($nimage,0,0,$white);
switch ($iinfo[2])
{
case 1:
$simage =imagecreatefromgif($dest);
break;
case 2:
$simage =imagecreatefromjpeg($dest);
break;
case 3:
$simage =imagecreatefrompng($dest);
break;
case 6:
$simage =imagecreatefromwbmp($dest);
break;
default:
die("不支持的文件类型");
exit;
}
imagecopy($nimage,$simage,0,0,0,0,$image_size[0],$image_size[1]);
//imagefilledrectangle($nimage,1,$image_size[1]-15,80,$image_size[1],$white);
switch($watertype)
{
case 1: //加水印字符串
//imagestring($nimage,2,3,$image_size[1]-15,$waterstring,$black);
break;
case 2: //加水印图片
$simage1 =imagecreatefrompng('wart.png');
imagecopy($nimage,$simage1,$image_size[0]-400,$image_size[1]-450,0,0,400,450);
imagedestroy($simage1);
break;
}
switch ($iinfo[2])
{
case 1:
//imagegif($nimage, $destination);
imagejpeg($nimage, $dest);
break;
case 2:
imagejpeg($nimage, $dest);
break;
case 3:
imagepng($nimage, $dest);
break;
case 6:
imagewbmp($nimage, $dest);
//imagejpeg($nimage, $destination);
break;
}
//覆盖原上传文件
imagedestroy($nimage);
imagedestroy($simage);
}

}
if ($f['size'] > 0) {

echo "<script>window.opener.document." . $formName . "." . $editName . ".value='" . $dest1 . "'</script>";
echo "<script>alert('图片上传成功');window.close()</script>";
}
?>
</html>

admin_upload.php

<html>
<head>
<title>图片上传</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<?php
$uppath=isset($_REQUEST["upPath"])?$_REQUEST["upPath"]."/":"/attached/";              //文件上传路径
$formName=isset($_REQUEST["formName"])?$_REQUEST["formName"]:"myform";          //回传到上页面编辑框所在Form的Name
$editName=isset($_REQUEST["editName"])?$_REQUEST["editName"]:"pic";              //回传到上页面编辑框的Name
//示例
/*

<form name="myform">
<input name="pic" Type="text"    size="50" maxlength="50" >
<input type="button" name="Submit" value="点击上传图片" onClick="window.open('Admin_upload.php?formName=myform&editName=pic&upPath=/uploadfile','','status=no,scrollbars=no,top=20,left=110,width=420,height=165')">
</form>

*/
?>
<script language="javascript">
<!--
function mysub()
{
esave.style.visibility="visible";
}
-->
</script>
<style type="text/css">
<!--
.STYLE2 {
font-size: 12pt
}
.STYLE3 {
font-size: 14pt
}
-->
</style>
</head>
<body oncontextmenu='return false' onselectstart="return false" oncopy="return false;" oncut="return false;">
<form name="form1" method="post" action="admin_upfile.php" enctype="multipart/form-data" >
<div id="esave" style="position:absolute; top:18px; left:40px; z-index:10; visibility:hidden">
<TABLE WIDTH=340 BORDER=0 CELLSPACING=0 CELLPADDING=0>
<TR>
<td width=20?></td>
<TD bgcolor=#ff0000 width="60%"><TABLE WIDTH=100% height=120 BORDER=0 CELLSPACING=1 CELLPADDING=0>
<TR>
<td bgcolor=#ffffff align=center><font color=red>正在上传文件，请稍候...</font></td>
</tr>
</table></td>
<td width=20?></td>
</tr>
</table>
</div>
<table class="Border" width="100%" border="0" height="100%" align="center" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td align="center" class="title" height="30"><b><span class="style2 STYLE3">图 片 上 传</span>
<input type="hidden" name="upPath" value="<?=$uppath?>">
<input type="hidden" name="editName" value="<?=$editName?>">
<input type="hidden" name="formName" value="<?=$formName?>">
</b> </td>
</tr>
<tr bgcolor="#E8F1FF">
<td height="94" align="center" id="upid">选择文件:
<input type="file" name="file1" size="20" class="tx1" value="">
<input type="submit" name="Submit" value="开始上传" class="button" onClick="mysub();">
<br></td>
</tr>
</table>
</form>
</body>
</html>

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