php文件上传程序
发布时间：2022-07-18 10:07:08 所属栏目：PHP教程 来源：互联网
导读：文章提供一款完整理的php文件上传程序实例代码，他可以上传图片并且把图片保存到1:按天存入目录 2:按月存入目录 ,还可以设置上传图片生成水印. !doctype html public -//w3c//dtd xhtml 1.0 transitional//en http://www.w3.org/tr/xhtml1/dtd/xhtml1-transi
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文章提供一款完整理的php文件上传程序实例代码，他可以上传图片并且把图片保存到1:按天存入目录 2:按月存入目录 ,还可以设置上传图片生成水印. <!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" content="text/html; charset=gb2312" /> <title>上传文件程序</title> <style type="text/css"> *{ font-size:12px; margin:0; padding:0; } a:link,a:visited{ text-decoration:none; color: #393 } a:hover{ text-decoration:underline; color:#0033cc } input.text{ border:1px solid #ccc;height:22px;line-height:22px;padding-left:5px;background:#fff;width:274px; } input.button{ background:#fff url(images/button.png);border:1px solid #9ea9c5;padding:2px 2px 0px 2px;margin-left:4px; margin-right:4px; } </style> <script language=javascript> function check() { var strfilename=document.myform.upfile.value; if (strfilename=="") { alert("请选择要上传的文件"); document.myform.upfile.focus(); return false; } } </script> </head> <body> <?php /*********************** 程序：上传文件 功能：上传文件、缩略图、加水印 ****************************/ include("common/upfiles.class.php"); $path="../upload/coolsite"; //文件上传路径 $mix="smallimg"; //缩略图路径(在upload下建立) $mark="markimg"; //加水引的图片存放路径(在upload下建立) $text = array("www.111cn.net"); //水印内容 $oupload= new upfiles($path,$mix,$mark); //实例化类文件 if(isset($_post['up'])){ if($_post['urlid']=='1'){ //上传图片 参数urlid 1:上传图片 2:上传其他文件.. $oupload->tofile = true; //开启则只保存缩略图或者水印图,删除原图 $photo = $oupload->upload("upfile"); //上传的文件域 $photourl = $oupload->fileurl."/".$photo; $newsmallimg = $oupload->smallimg($photo); //缩略图功能 //$newmarkimg = $oupload->watermark($photo,$text); //水印功能 //echo $newsmallimg; //输出缩略图路径 //echo $newmark; //输出水印图路径 //echo "<img src='".$newsmallimg."' border='0'>"; //输出缩略图 //echo "<img src='".$newmark."' border='0'>"; //输出水印图 }else{ $upfilename = $oupload->upload("upfile"); //上传的文件域 } $strjs = "<script language=javascript>n"; $strjs .= "parent.document.myform.upfile1.value='".$newsmallimg."'n"; $strjs .= "parent.document.myform.upfile2.value='".$photourl."'n"; $strjs .= "</script>n"; echo $strjs; //把上次文件路径附在upfile1、upfile2中去 }else{ ?> <form action="upfile.php" method="post" enctype="multipart/form-data" name="myform" onsubmit="return check()"> <input type="file" name="upfile" value="" class="text"><input type="submit" name="up" value="上传" class="button"> <input type="hidden" name="urlid" value="<?php echo $_get['urlid']?>"> </form> <?php }?> </body> </html> <? //upfiles.class.php /*========================= 上传类 upfiles.class.php ===========================*/ class upfiles { /*========================= //基本参数设置 ===========================*/ protected $annexfolder = "upload"; //附件存放点，默认为：upload protected $dirtype = 2; //1:按天存入目录 2:按月存入目录 protected $smallfolder = "smallimg"; //缩略图存放路径，注：必须是放在 $upload下的子目录，默认为：smallimg protected $markfolder = "markimg"; //水印图片存放路径，注：必须是放在 $upload下的子目录，默认为：markimg protected $upfiletype = "jpg gif png rar zip"; //上传的类型，默认为：jpg gif png rar zip protected $upfilemax = 102400; //上传大小限制，单位是"kb"，默认为：1024kb protected $fonttype = "common/equinoxstd.otf"; //水印字体库 protected $maxwidth = 800; //图片最大宽度 protected $maxheight = 600; //图片最大高度 /*========================= //初始化上传类 ===========================*/ public function __construct($annexfolder,$smallfolder,$includefolder) { switch($this->dirtype) { case 1: $attach_subdir = 'day_'.date('ymd'); break; case 2: $attach_subdir = 'month_'.date('ym'); break; } $attach_dir = $annexfolder.'/'.$attach_subdir; $attach_dir_small = $attach_dir.'/'.$smallfolder; $attach_dir_mark = $attach_dir.'/'.$includefolder; $this->rootfolder = $annexfolder; $this->annexfolder = $attach_dir; $this->smallfolder = $attach_dir_small; $this->markfolder = $attach_dir_mark; //$this->fonttype = $includefolder."/nasaliza.ttf"; } public function __get($fileurl){ $fileurl = $this->annexfolder; return $fileurl; } /*========================= //上传文件 ===========================*/ public function upload($inputname) { //检查文件夹是否存在 if(!file_exists($this->annexfolder)){ if(!file_exists($this->rootfolder)) @mkdir($this->rootfolder); if(!file_exists($this->annexfolder)) @mkdir($this->annexfolder); if(!file_exists($this->smallfolder)) @mkdir($this->smallfolder); if(!file_exists($this->markfolder)) @mkdir($this->markfolder); } if(!file_exists($this->smallfolder)){ @mkdir($this->smallfolder); } if(!file_exists($this->markfolder)){ @mkdir($this->markfolder); } $this->uptype = $_files[$inputname]["type"]; $this->upname = $_files[$inputname]["name"]; $this->uptmp_name = $_files[$inputname]["tmp_name"]; $this->upsize = $_files[$inputname]["size"]; $this->uperror = $_files[$inputname]["error"]; if($this->uptype){ switch ($this->uptype)///检查上传的类型 { case "image/pjpeg": $fileextname = "jpg"; break; case "image/jpeg": $fileextname = "jpg"; break; case "image/gif": $fileextname = "gif"; break; case "image/x-png": $fileextname = "png"; break; case "application/x-shockwave-flash": $fileextname = "swf"; break; case "text/plain": $fileextname = "txt"; break; case "application/msword": $fileextname = "doc"; break; case "application/vnd.ms-excel": $fileextname = "xls"; break; case "application/x-zip-compressed": $fileextname = "zip"; break; case "audio/mpeg": $fileextname = "mp3"; break; case "audio/x-ms-wma": $fileextname = "wma"; break; case "application/pdf": $fileextname = "pdf"; break; default: //如果不满足上述类型,那么上传文件被判断为格式不正确!! //$fileextname =strtolower(substr(strrchr(trim($this->upname), "."),1,4)); //$fileinfo=pathinfo($this->upname); //$fileextname=$fileinfo['extension']; $fileextname = "err"; } } if(@emptyempty($this->upname)) die("没有上传文件信息，请确认 <a href='javascript：history.go(-1);'>返回</a>"); //$name = explode(".",$this->upname);//将上传前的文件以"."分开取得文件类型 //$filcount = count($name);//获得截取的数量 //$filtype = $name[$filcount-1];//取得文件的类型 $filtype = $fileextname; if(strpos($this->upfiletype,$filtype) === false){ die("上传文件类型仅支持 ".$this->upfiletype." 不支持 ".$filtype ." <a href='javascript：history.go(-1);'>返回</a>"); } $filsize = $this->upsize; if(round($filsize/1024) > ($this->upfilemax*1024)) { die("上传文件超过 ".$this->upfilemax."kb"); } $filename = "es_".date("ymdhis").".".$filtype;//写入数据库的文件名 $fileurl = $this->annexfolder."/".$filename;//上传后的文件名称 $upfileok = move_uploaded_file($this->uptmp_name,$fileurl); if($this->uperror == 0 || $upfileok) { echo "文件上传成功 <a href='javascript：history.go(-1);'>继续上传</a>"; } else { die("上传文件失败，请确认你的上传文件不超过 $upfilemax kb 或上传时间超时"); } return $filename; //return $fileurl; } public function getinfo($photo) { $photo = $this->annexfolder."/".$photo; $imageinfo = getimagesize($photo); $imginfo["width"] = $imageinfo[0]; $imginfo["height"] = $imageinfo[1]; $imginfo["type"] = $imageinfo[2]; $imginfo["name"] = basename($photo); return $imginfo; } /*========================= //缩略图 ===========================*/ public function smallimg($photo,$width=250,$height=192) { $imginfo = $this->getinfo($photo); $photo = $this->annexfolder."/".$photo;//获得图片源 $newname = substr($imginfo["name"],0,strrpos($imginfo["name"], "."))."_thumb.jpg";//新图片名称 if($imginfo["type"] == 1) { $img = imagecreatefromgif($photo); } elseif($imginfo["type"] == 2) { $img = imagecreatefromjpeg($photo); } elseif($imginfo["type"] == 3) { $img = imagecreatefrompng($photo); } else { $img = ""; } if(emptyempty($img)) return false; $width = ($width > $imginfo["width"]) ? $imginfo["width"] : $width; $height = ($height > $imginfo["height"]) ? $imginfo["height"] : $height; $srcw = $imginfo["width"]; $srch = $imginfo["height"]; if ($srcw * $width > $srch * $height) { $height = round($srch * $width / $srcw); } else { $width = round($srcw * $height / $srch); } if (function_exists("imagecreatetruecolor")) { $newimg = imagecreatetruecolor($width, $height); imagecopyresampled($newimg, $img, 0, 0, 0, 0, $width, $height, $imginfo["width"], $imginfo["height"]); } else { $newimg = imagecreate($width, $height); imagecopyresized($newimg, $img, 0, 0, 0, 0, $width, $height, $imginfo["width"], $imginfo["height"]); } if ($this->tofile) { if (file_exists($this->smallfolder."/".$newname)){ @unlink($this->smallfolder."/".$newname); } imagejpeg($newimg,$this->smallfolder."/".$newname); return $this->smallfolder."/".$newname; } else { imagejpeg($newimg); } imagedestroy($newimg); imagedestroy($img); return $newname; } （编辑：鄂州站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
