php图片上传存储源码，可实现预览

我会带着你远行 2021-11-23 02:10 115阅读 0赞

<?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=""  οnlοad="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 
    οnchange="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\" οnclick=\"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\" οnclick=\"sendtof(this.value)\" οnmοuseοver=\"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\" οnclick=\"sendtof(this.value)\" οnmοuseοver=\"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>

转载于:https://www.cnblogs.com/c3055/archive/2011/08/26/2154113.html