php图片上传存储源码并且可以预览

2015-01-24信息快讯网

php图片上传存储源码并且可以预览，学习php的朋友可以参考下。

 
<?php 
header("content-Type: text/html; charset=gb2312"); 
$uptypes=array('image/jpg', //上传文件类型列表 
'image/jpeg', 
'image/png', 
'image/pjpeg', 
'image/gif', 
'image/bmp', 
'application/x-shockwave-flash', 
'image/x-png', 
'application/msword', 
'audio/x-ms-wma', 
'audio/mp3', 
'application/vnd.rn-realmedia', 
'application/x-zip-compressed', 
'application/octet-stream'); 
$max_file_size=10000000; //上传文件大小限制, 单位BYTE 
$path_parts=pathinfo($_SERVER['PHP_SELF']); //取得当前路径 
$destination_folder="up/"; //上传文件路径 
$watermark=0; //是否附加水印(1为加水印,0为不加水印); 
$watertype=1; //水印类型(1为文字,2为图片) 
$waterposition=2; //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="www.yinao.tk"; //水印字符串 
$waterimg="xplore.gif"; //水印图片 
$imgpreview=1; //是否生成预览图(1为生成,0为不生成); 
$imgpreviewsize=1/1; //缩略图比例 
?> 
<html xmlns="undefined"> 
<head> 
<title>图片上传储存</title> 
<LINK rel="Bookmark" href="http://www.yinao.tk/ico.ico" > 
<LINK rel="Shortcut Icon" href="http://www.yinao.tk/ico.ico" /> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
<meta name="description" content="亿脑网盘_免费网络无限大图片上传储存" /> 
<style type="text/css"> 
body,td{font-family:tahoma,verdana,arial;font-size:11px;line-height:15px;background-color:white;color:#666666; 
strong{font-size:12px;} 
a:link{color:#0066CC;} 
a:hover{color:#FF6600;} 
a:visited{color:#003366;} 
a:active{color:#9DCC00;} 
a{TEXT-DECORATION:none} 
td.irows{height:20px;background:url("index.php?i=dots") repeat-x bottom} 
</style> 
</head> 
<script type="text/javascript">function oCopy(obj){obj.select();js=obj.createTextRange();js.execCommand("Copy");};function sendtof(url){window.clipboardData.setData('Text',url);alert('复制地址成功，粘贴给你好友一起分享。');};function select_format(){var on=document.getElementById('fmt').checked;document.getElementById('site').style.display=on?'none':'';document.getElementById('sited').style.display=!on?'none':'';};var flag=false;function DrawImage(ImgD){var image=new Image();image.src=ImgD.src;if(image.width>0&&image.height>0){flag=true;if(image.width/image.height>=120/80){if(image.width>120){ImgD.width=120;ImgD.height=(image.height*120)/image.width;}else {ImgD.width=image.width;ImgD.height=image.height;};ImgD.alt=image.width+"×"+image.height;}else {if(image.height>80){ImgD.height=80;ImgD.width=(image.width*80)/image.height;}else {ImgD.width=image.width;ImgD.height=image.height;};ImgD.alt=image.width+"×"+image.height;}};};function FileChange(Value){flag=false;document.all.uploadimage.width=10;document.all.uploadimage.height=10;document.all.uploadimage.alt="";document.all.uploadimage.src=Value;};</script> 
<body bgcolor="#FFFFFF"> 
<center> 
<form enctype="multipart/form-data" method="post" name="upform"> 
<table border="1" width="55%" id="table1" cellspacing=0> 
<tr> 
<td colspan="2"><p align="center">最大文件限制1M </td> 
</tr> 
<tr> 
<td width="10%"><div style="width:120px; height:80px;overflow:hidden;text-align: center;" ><IMG id=uploadimage height=0 width=0 src="" onload="javascript:DrawImage(this);" ></div></td> 
<td width="71%"><div style="width:361px; height:80px;overflow:hidden;text-align: center;padding:30px; " > 
<input style="width:208;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff; height:18" size="17" name=upfile type=file 
onchange="javascript:FileChange(this.value);"> 
<input type="submit" value="上传" style="width:60;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff; height:18" size="17"></td> 
</tr> 
</table> 
允许上传的文件类型为:jpg|jpeg|gif|bmp|png|swf|mp3|wma|zip|rar|doc</form> 
<?php 
if ($_SERVER['REQUEST_METHOD'] == 'POST') 
{ 
if (!is_uploaded_file($_FILES["upfile"][tmp_name])) 
//是否存在文件 
{ 
echo "<font color='red'>文件不存在！</font>"; 
exit; 
} 
$file = $_FILES["upfile"]; 
if($max_file_size < $file["size"]) 
//检查文件大小 
{ 
echo "<font color='red'>文件太大！</font>"; 
exit; 
} 
if(!in_array($file["type"], $uptypes)) 
//检查文件类型 
{ 
echo "<font color='red'>不能上传此类型文件！</font>"; 
exit; 
} 
if(!file_exists($destination_folder)) 
mkdir($destination_folder); 
$filename=$file["tmp_name"]; 
$image_size = getimagesize($filename); 
$pinfo=pathinfo($file["name"]); 
$ftype=$pinfo[extension]; 
$destination = $destination_folder.time().".".$ftype; 
if (file_exists($destination) && $overwrite != true) 
{ 
echo "<font color='red'>同名文件已经存在了！</a>"; 
exit; 
} 
if(!move_uploaded_file ($filename, $destination)) 
{ 
echo "<font color='red'>移动文件出错！</a>"; 
exit; 
} 
$pinfo=pathinfo($destination); 
$fname=$pinfo[basename]; 
echo " <font color=red>成功上传,鼠标移动到地址栏自动复制</font><br><table width=\"348\" cellspacing=\"0\" cellpadding=\"5\" border=\"0\" class=\"table_decoration\" align=\"center\"><tr><td><input type=\"checkbox\" id=\"fmt\" onclick=\"select_format()\"/>图片UBB代码<br/><div id=\"site\"><table border=\"0\"><tr><td valign=\"top\">文件地址:</td><td><input type=\"text\" onclick=\"sendtof(this.value)\" onmouseover=\"oCopy(this)\" style=font-size=9pt;color:blue size=\"44\" value=\"http://".$_SERVER['SERVER_NAME'].$path_parts["dirname"]."/".$destination_folder.$fname."\"/> 
</td></tr></table></div><div id=\"sited\" style=\"display:none\"><table border=\"0\"><tr><td valign=\"top\">文件地址:</td><td><input type=\"text\" onclick=\"sendtof(this.value)\" onmouseover=\"oCopy(this)\" style=font-size=9pt;color:blue size=\"44\" value=\"[img]http://".$_SERVER['SERVER_NAME'].$path_parts["dirname"]."/".$destination_folder.$fname."[/img]\"/></td></tr></table></div></td></tr></table>"; 
echo " 宽度:".$image_size[0]; 
echo " 长度:".$image_size[1]; 
if($watermark==1) 
{ 
$iinfo=getimagesize($destination,$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: 
$simage =imagecreatefromgif($destination); 
break; 
case 2: 
$simage =imagecreatefromjpeg($destination); 
break; 
case 3: 
$simage =imagecreatefrompng($destination); 
break; 
case 6: 
$simage =imagecreatefromwbmp($destination); 
break; 
default: 
die("<font color='red'>不能上传此类型文件！</a>"); 
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 
$simage1 =imagecreatefromgif("xplore.gif"); 
imagecopy($nimage,$simage1,0,0,0,0,85,15); 
imagedestroy($simage1); 
break; 
} 
switch ($iinfo[2]) 
{ 
case 1: 
//imagegif($nimage, $destination); 
imagejpeg($nimage, $destination); 
break; 
case 2: 
imagejpeg($nimage, $destination); 
break; 
case 3: 
imagepng($nimage, $destination); 
break; 
case 6: 
imagewbmp($nimage, $destination); 
//imagejpeg($nimage, $destination); 
break; 
} 
//覆盖原上传文件 
imagedestroy($nimage); 
imagedestroy($simage); 
} 
if($imgpreview==1) 
{ 
echo "<br>图片预览:<br>"; 
echo "<a href=\"".$destination."\" target='_blank'><img src=\"".$destination."\" width=".($image_size[0]*$imgpreviewsize)." height=".($image_size[1]*$imgpreviewsize); 
echo " alt=\"图片预览:\r文件名:".$fname."\r上传时间:".date('m/d/Y h:i')."\" border='0'></a>"; 
} 
} 
?> 
</center> 
</body> 
</html>

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