PHP仿ASP经典上传组件(可多图，多文件上传)

<?php $uptypes=array('image/jpg', //上传文件类型列表 'image/jpeg', 'image/png', 'image/pjpeg', 'image/gif', 'image/bmp', 'image/x-png'); $max_file_size=5000000; //上传文件大小限制, 单位BYTE $img_folder="/upload_file/"; //上传文件路径 $watermark=0; //是否附加水印(1为加水印,其他为不加水印); $watertype=1; //水印类型(1为文字,2为图片) $waterposition=1; //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=""; //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,其他为不生成); $imgpreviewsize=1/2; //缩略图比例 if ($_SERVER['REQUEST_METHOD'] == 'POST') { if (is_uploaded_file($_FILES["upfile"][tmp_name])) //是否存在文件 { $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"], $uptypes)) //检查文件类型 { echo "<font color='red'>只能上传图像文件或Flash！</font>"; exit; } if(!file_exists($_SERVER["DOCUMENT_ROOT"].$img_folder)) mkdir($_SERVER["DOCUMENT_ROOT"].$img_folder); $filename=$file["tmp_name"]; $image_size = getimagesize($filename); $pinfo=pathinfo($file["name"]); $ftype=$pinfo[extension]; $img = $img_folder.date("YmdHis").".".$ftype; $url = $_SERVER["DOCUMENT_ROOT"].$img; if (file_exists($url) && $overwrite != true) { echo "<font color='red'>同名文件已经存在了！</a>"; exit; } if(!move_uploaded_file ($filename, $url)) { echo "<font color='red'>移动文件出错！</a>"; exit; } $pinfo=pathinfo($url); $fname=$pinfo[basename]; //echo " <font color=red>已经成功上传</font><br>文件名: <font color=blue>".$_SERVER["DOCUMENT_ROOT"].$img_folder.$fname."</font><br>"; //echo " 宽度:".$image_size[0]; //echo " 长度:".$image_size[1]; if($watermark==1) { $iinfo=getimagesize($url,$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: $simage =imagecreatefromgif($url); break; case 2: $simage =imagecreatefromjpeg($url); break; case 3: $simage =imagecreatefrompng($url); break; case 6: $simage =imagecreatefromwbmp($url); 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, $url); imagejpeg($nimage, $url); break; case 2: imagejpeg($nimage, $url); break; case 3: imagepng($nimage, $url); break; case 6: imagewbmp($nimage, $url); //imagejpeg($nimage, $url); break; } //覆盖原上传文件 imagedestroy($nimage); imagedestroy($simage); } if($imgpreview==1) { //echo "<br>图片预览:<br>"; //echo "<a href=\"".$url."\" target='_blank'><url src=\"".$url."\" width=".($image_size[0]*$imgpreviewsize)." height=".($image_size[1]*$imgpreviewsize); //echo " alt=\"图片预览:\r文件名:".$url."\r上传时间:\" border='0'></a>"; } } } //enctype="multipart/form-data" //<input name="upfile" type="file" style="width:200;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff" size="17"> ?>