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php 文件上传轻松实例代码

九月 28th, 2019  |  www.hg888.com

<?php教程
if($_files[‘file’]){
 //
———————————————————————————————-//
//
// 说明:文件上传 
 日期:2004-5-2
//
//
———————————————————————————————-//

<?php教程
if($_FILES[‘file’]){
 //
———————————————————————————————-//
//
// 表达:文件上传   日期:二零零一-5-2
//
//
———————————————————————————————-//

<?php

php教程图片上传,可实现预览

php轻便实用文件上传代码
 // 上传设置
 $maxsize=一千2400;            //最大允许上传的文件大小
 $alltype=array(“.php”,”.php3″);         //全体允许上传的文件类型
 $imgtype=array(“.php”,”.php3″);               //类型

 // 上传设置
 $maxsize=10002400;            //最大允许上传的文件大小
 $alltype=array(“.php”,”.php3″);         //全数允许上传的文件类型
 $imgtype=array(“.php”,”.php3″);               //类型

 代码如下

<?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’]); //取妥善前路径
$destination_folder=”up/”; //上传文件路线
$watermark=0;   //是或不是附加水印(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;  
//水印地点(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;   //是或不是变动预览图(1为浮动,0为不扭转);
$imgpreviewsize=1/1; 
//缩略图比例
?>
<html xmlns=”undefined”>
<head>
<title>图片上传积攒</title>
<style
type=”text/css教程”>
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/网页特效”>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,粘贴给您死党一同享用。’);};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|mp4|wma|zip|rar|doc</form>
  <?php
if ($_SERVER[‘REQUEST_METHOD’] == ‘POST’)
{
if (!is_uploaded_file($_FILES[“upfile”][tmp_name]))
//是不是留存文件
{
echo “<font color=’red’>文件子虚乌有!</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’>不可能上传此类型文件!</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,鼠标移动到地方栏自动复制</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”>文件地方:</td><td><input type=”text”
onclick=”sendtof(this.value)”
onmouseo教程ver=”oCopy(this)”
style=font-size=9pt;color:blue size=”44″
value=”;
</td></tr></table></div><div id=”sited”
style=”display:none”><table border=”0″><tr><td
valign=”top”>文件地方:</td><td><input type=”text”
onclick=”sendtof(this.value)” onmouseover=”oCopy(this)”
style=font-size=9pt;color:blue size=”44″
value=”[img];”;
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’>不可能上传此类型文件!</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($imgpreview==1)
{
echo
“<br>图形预览:<br>”;
echo “<a href=””.$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>

 // 判别文件大小
 if($_files[‘file’][‘size’]>$maxsize)  {
     echo “您上传的材质大于10000k”;
     exit;
 }
 
 // 判别文件类型
 $type=strstr($_files[‘file’][‘name’],”.”);
 if(in_array($type,$alltype)){
     echo “不相同意上传该类型的公文”;
     exit;
 }
 include ‘./uploaddir.php’;
 $time=date(“ymd-his”,time());
 $fn=$time.$type;
 $destination=$updir.”/”.$fn;
 if(@move_uploaded_file($_files[‘file’][‘tmp_name’],
$destination)){
         @chmod($destination, 0777);
   $fileurl=$updir.”/”.$destination;
         $fileurl=””.$destination;
          
 }else{
    echo “上传失利!”;
    echo “<script>location.href=history.back()</script>”;
 }
//
———————————————————————————————-//
}
www.hg888.com,if($back==”no”):
 echo “ok”;
 exit;
endif;
?>

 // 剖断文件大小
 if($_FILES[‘file’][‘size’]>$maxsize)  {
     echo “您上传的素材大于一千0K”;
     exit;
 }
 
 // 推断文件类型
 $type=strstr($_FILES[‘file’][‘name’],”.”);
 if(in_array($type,$alltype)){
     echo “不容许上传该类型的文本”;
     exit;
 }
 include ‘./uploaddir.php’;
 $time=date(“Ymd-His”,time());
 $fn=$time.$type;
 $destination=$updir.”/”.$fn;
 if(@move_uploaded_file($_FILES[‘file’][‘tmp_name’],
$destination)){
         @chmod($destination, 0777);
   $fileurl=$updir.”/”.$destination;
         $fileurl=””.$destination;
          
 }else{
    echo “上传失利!”;
    echo “<script>location.href=history.back()</script>”;
 }
//
———————————————————————————————-//
}
if($back==”no”):
 echo “ok”;
 exit;
endif;
?>
<html>
<head>
<title>上传文件</title>

if($_FILES[‘file’]){

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