PHP上传类.doc

setSavepath($savePath);$this-setFileformat($fileFormat);$this-setMaxsize($maxSize);$this-setOverwrite($overwrite);$this-setThumb($this-thumb, $this-thumbWidth,$this-thumbHeight);$this-errno = 0;/ 上传/ param $fileInput 网页Form(表单)中input的名称/ param $changeName 是否更改文件名function run($fileInput,$changeName = 1)if(isset($_FILES$fileInput)$fileArr = $_FILES$fileInput;if(is_array($fileArrname)/上传同文件域名称多个文件for($i = 0; $i getExt($arname);/取得扩展名，赋给$this-ext，下次循环会更新$this-setSavename($changeName = 1 ? : $arname);/设置保存文件名if($this-copyfile($ar)$this-returnArray = $this-returninfo;else$this-returninfoerror = $this-errmsg();$this-returnArray = $this-returninfo;return $this-errno ? false : true;else/上传单个文件$this-getExt($fileArrname);/取得扩展名$this-setSavename($changeName = 1 ? : $fileArrname);/设置保存文件名if($this-copyfile($fileArr)$this-returnArray = $this-returninfo;else$this-returninfoerror = $this-errmsg();$this-returnArray = $this-returninfo;return $this-errno ? false : true;return false;else$this-errno = 10;return false;/ 单个文件上传/ param $fileArray 文件信息数组function copyfile($fileArray)$this-returninfo = array();/ 返回信息$this-returninfoname = $fileArrayname;$this-returninfosaveName = $this-saveName;$this-returninfosize = number_format( ($fileArraysize)/1024 , 0, ., );/以KB为单位$this-returninfotype = $fileArraytype;/ 检查文件格式if (!$this-validateFormat()$this-errno = 11;return false;/ 检查目录是否可写if(!is_writable($this-savePath)$this-errno = 12;return false;/ 如果不允许覆盖，检查文件是否已经存在if($this-overwrite = 0 & file_exists($this-savePath.$fileArrayname)$this-errno = 13;return false;/ 如果有大小限制，检查文件是否超过限制if ($this-maxSize != 0 )if ($fileArraysize $this-maxSize)$this-errno = 14;return false;/ 文件上传if(!copy($fileArraytmp_name, $this-savePath.$this-saveName)$this-errno = $fileArrayerror;return false;elseif( $this-thumb )/ 创建缩略图$CreateFunction = imagecreatefrom.($this-ext = jpg ? jpeg : $this-ext);$SaveFunction = image.($this-ext = jpg ? jpeg : $this-ext);if (strtolower($CreateFunction) = imagecreatefromgif & !function_exists(imagecreatefromgif) $this-errno = 16;return false; elseif (strtolower($CreateFunction) = imagecreatefromjpeg & !function_exists(imagecreatefromjpeg) $this-errno = 17;return false; elseif (!function_exists($CreateFunction) $this-errno = 18;return false;$Original = $CreateFunction($this-savePath.$this-saveName);if (!$Original) $this-errno = 19; return false;$originalHeight = ImageSY($Original);$originalWidth = ImageSX($Original);$this-returninfooriginalHeight = $originalHeight;$this-returninfooriginalWidth = $originalWidth;if ($originalHeight thumbHeight & $originalWidth thumbWidth) / 如果比期望的缩略图小，那只Copycopy($this-savePath.$this-saveName, $this-savePath.$this-thumbPrefix.$this-saveName); else if( $originalWidth $this-thumbWidth )/ 宽 设定宽度$thumbWidth = $this-thumbWidth ;$thumbHeight = $this-thumbWidth * ( $originalHeight / $originalWidth );if($thumbHeight $this-thumbHeight)/ 高 设定高度$thumbWidth = $this-thumbHeight * ( $thumbWidth / $thumbHeight );$thumbHeight = $this-thumbHeight ;elseif( $originalHeight $this-thumbHeight )/ 高 设定高度$thumbHeight = $this-thumbHeight ;$thumbWidth = $this-thumbHeight * ( $originalWidth / $originalHeight );if($thumbWidth $this-thumbWidth)/ 宽 设定宽度$thumbHeight = $this-thumbWidth * ( $thumbHeight / $thumbWidth );$thumbWidth = $this-thumbWidth ;if ($thumbWidth = 0) $thumbWidth = 1;if ($thumbHeight = 0) $thumbHeight = 1;$createdThumb = imagecreatetruecolor($thumbWidth, $thumbHeight);if ( !$createdThumb ) $this-errno = 20; return false;if ( !imagecopyresampled($createdThumb, $Original, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $originalWidth, $originalHeight) )$this-errno = 21; return false;if ( !$SaveFunction($createdThumb, $this-savePath.$this-thumbPrefix.$this-saveName) )$this-errno = 22; return false;/ 删除临时文件if(!$this-del($fileArraytmp_name)return false;return true;/ 文件格式检查,MIME检测function validateFormat()if(!is_array($this-fileFormat) | in_array(strtolower($this-ext), $this-fileFormat) | in_array(strtolower($this-returninfotype), $this-fileFormat) )return true;elsereturn false;/ 获取文件扩展名/ param $fileName 上传文件的原文件名function getExt($fileName)$ext = explode(., $fileName);$ext = $extcount($ext) - 1;$this-ext = strtolower($ext);/ 设置上传文件的最大字节限制/ param $maxSize 文件大小(bytes) 0:表示无限制function setMaxsize($maxSize)$this-maxSize = $maxSize;/ 设置文件格式限定/ param $fileFormat 文件格式数组function setFileformat($fileFormat)if(is_array($fileFormat)$this-fileFormat = $fileFormat ;/ 设置覆盖模式/ param overwrite 覆盖模式 1:允许覆盖 0:禁止覆盖function setOverwrite($overwrite)$this-overwrite = $overwrite;/ 设置保存路径/ param $savePath 文件保存路径：以 / 结尾，若没有 /，则补上function setSavepath($savePath)$this-savePath = substr( str_replace(,/, $savePath) , -1) = / ? $savePath : $savePath./;/ 设置缩略图/ param $thumb = 1 产生缩略图 $thumbWidth,$thumbHeight 是缩略图的宽和高function setThumb($thumb, $thumbWidth = 0,$thumbHeight = 0)$this-thumb = $thumb;if($thumbWidth) $this-thumbWidth = $thumbWidth;if($thumbHeight) $this-thumbHeight = $thumbHeight;/ 设置文件保存名/ param $saveName 保存名，如果为空，则系统自动生成一个随机的文件名function setSavename($saveName)if ($saveName = ) / 如果未设置文件名，则生成一个随机文件名$name = date(YmdHis)._.rand(100,999).$this-ext; else $name = $saveName;$this-saveName = $name;/ 删除文件/ param $fileName 所要删除的文件名function del($fileName)if(!unlink($fileName)$this-errno = 15;return false;return true;/ 返回上传文件的信息function getInfo()return $this-returnArray;/ 得到错误信息function errmsg()$uploadClassError = array(0=There is no error, the file uploaded with success. ,1=The uploaded file exceeds the upload_max_filesize directive in php.ini.,2=The uploaded file exceeds the MAX_FILE_SIZE that was specified in the HTML form.,3=The uploaded file was only partially uploaded. ,4=No file was uploaded. ,6=Missing a temporary folder. Introduced in PHP 4.3.10 and PHP 5.0.3. ,7=Failed to write file to disk. Introduced in PHP 5.1.0. ,10=Input name is not unavailable!,11=The uploaded file is Unallowable!,12=Directory unwritable!,13=File exist already!,14=File is too big!,15=Delete file unsuccessfully!,16=Your version of PHP does not appear to have GIF thumbnailing support.,