php 图片上传预览(转)
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php 图片上传预览(转)
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網上找的圖片上傳預覽：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><?php header("content-Type: text/html; charset=gb2312"); $uptypes=array('image/jpg', //上傳文件類型列表 '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; //上傳文件大小限制, 單位BYTE $path_parts=pathinfo($_SERVER['PHP_SELF']); //取得當前路徑 $destination_folder="up/"; //上傳文件路徑 $watermark=0; //是否附加水印(1為加水印,0為不加水印); $watertype=1; //水印類型(1為文字,2為圖片) $waterposition=2; //水印位置(1為左下角,2為右下角,3為左上角,4為右上角,5為居中); $waterstring="www.yinao.tk"; //水印字符串 $waterimg="xplore.gif"; //水印圖片 $imgpreview=1; //是否生成預覽圖(1為生成,0為不生成); $imgpreviewsize=1/1; //縮略圖比例 ?> <html xmlns="undefined"> <head> <title>圖片上傳儲存</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="億腦網盤_免費網絡無限大圖片上傳儲存" /> <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('復制地址成功，粘貼給你好友一起分享。');};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="上傳" style="width:60;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff; height:18" size="17"></td> </tr> </table> 允許上傳的文件類型為: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 < $file["size"]) //檢查文件大小 { echo "<font color='red'>文件太大！</font>"; exit; } if(!in_array($file["type"], $uptypes)) //檢查文件類型 { echo "<font color='red'>不能上傳此類型文件！</font>"; exit; } if(!file_exists($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) && $overwrite != true) { echo "<font color='red'>同名文件已經存在了！</a>"; exit; } if(!move_uploaded_file ($filename, $destination)) { echo "<font color='red'>移動文件出錯！</a>"; exit; } $pinfo=pathinfo($destination); $fname=@$pinfo[basename]; echo " <font color=red>成功上傳,鼠標移動到地址欄自動復制</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()\"/>圖片UBB代碼<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 " 寬度:".$image_size[0]; echo " 長度:".$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'>不能上傳此類型文件！</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: //加水印圖片 $simage1 =imagecreatefromgif("xplore.gif"); imagecopy($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, $destination); break; } //覆蓋原上傳文件 imagedestroy($nimage); imagedestroy($simage); } if($imgpreview==1) { echo "<br>圖片預覽:<br>"; echo "<a href=\"".$destination."\" target='_blank'><img src=\"".$destination."\" width=".($image_size[0]*$imgpreviewsize)." height=".($image_size[1]*$imgpreviewsize); echo " alt=\"圖片預覽:\r文件名:".$fname."\r上傳時間:".date('m/d/Y h:i')."\" border='0'></a>"; } } ?> </center> </body> </html>
運行后的界面：
轉載于:https://www.cnblogs.com/ds-3579/p/5527622.html
超強干貨來襲 云風專訪：近40年碼齡，通宵達旦的技術人生總結
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