做成多文件上传php类
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多文件上传是PHP中的一个基础应用,反正PHPer都会遇到的问题,现在就介绍一个功能完善、强大的多文件上传类给大家吧,能用上这个类的地方会很多,代码如下: <?php class Upload{ var $saveName;// 保存名 var $savePath;// 保存路径 var $fileFormat = array('gif','jpg','doc','application/octet-stream');// 文件格式&MIME限定 var $overwrite = 0;// 覆盖模式 var $maxSize = 0;// 文件最大字节 var $ext;// 文件扩展名 var $thumb = 0;// 是否生成缩略图 var $thumbWidth = 130;// 缩略图宽 var $thumbHeight = 130;// 缩略图高 var $thumbPrefix = "_thumb_";// 缩略图前缀 var $errno;// 错误代号 var $returnArray= array();// 所有文件的返回信息 var $returninfo= array();// 每个文件返回信息 // 构造函数 // @param $savePath 文件保存路径 // @param $fileFormat 文件格式限制数组 // @param $maxSize 文件最大尺寸 // @param $overwriet 是否覆盖 1 允许覆盖 0 禁止覆盖 function Upload($savePath, $fileFormat='',$maxSize = 0, $overwrite = 0) { $this->setSavepath($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($fileArr['name'])){//上传同文件域名称多个文件 for($i = 0; $i < count($fileArr['name']); $i++){ $ar['tmp_name'] = $fileArr['tmp_name'][$i]; $ar['name'] = $fileArr['name'][$i]; $ar['type'] = $fileArr['type'][$i]; $ar['size'] = $fileArr['size'][$i]; $ar['error'] = $fileArr['error'][$i]; $this->getExt($ar['name']);//取得扩展名，赋给$this->ext，下次循环会更新 $this->setSavename($changeName == 1 ? '' : $ar['name']);//设置保存文件名 if($this->copyfile($ar)){ $this->returnArray[] = $this->returninfo; }else{ $this->returninfo['error'] = $this->errmsg(); $this->returnArray[] = $this->returninfo; } } return $this->errno ? false : true; }else{//上传单个文件 $this->getExt($fileArr['name']);//取得扩展名 $this->setSavename($changeName == 1 ? '' : $fileArr['name']);//设置保存文件名 if($this->copyfile($fileArr)){ $this->returnArray[] = $this->returninfo; }else{ $this->returninfo['error'] = $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->returninfo['name'] = $fileArray['name']; $this->returninfo['md5'] = @md5_file($fileArray['tmp_name']); $this->returninfo['saveName'] = $this->saveName; $this->returninfo['size'] = number_format( ($fileArray['size'])/1024 , 0, '.', ' ');//以KB为单位 $this->returninfo['type'] = $fileArray['type']; // 检查文件格式 if (!$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($this->savePath.$fileArray['name'])){ // $this->errno = 13; // return false; //} // 如果有大小限制，检查文件是否超过限制 if ($this->maxSize != 0 ){ if ($fileArray["size"] > $this->maxSize){ $this->errno = 14; return false; } } // 文件上传 if(!@move_uploaded_file($fileArray["tmp_name"], $this->savePath.$this->saveName)){ $this->errno = $fileArray["error"]; 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->returninfo['originalHeight'] = $originalHeight; $this->returninfo['originalWidth'] = $originalWidth; /* if (($originalHeight < $this->thumbHeight && $originalWidth < $this->thumbWidth)) { // 如果比期望的缩略图小，那只Copy move_uploaded_file($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 ; } } */ $radio=max(($originalWidth/$this->thumbWidth),($originalHeight/$this->thumbHeight)); $thumbWidth=(int)$originalWidth/$radio; $thumbHeight=(int)$originalHeight/$radio; if ($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(!@$this->del($fileArray["tmp_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->returninfo['type']), $this->fileFormat) ) return true; else return 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 = $ext[count($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; //判断文件是否存在,不允许重复文件 if(file_exists($this->savePath . $name)){ $name = setSavename($saveName); } } 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(){ $uploadClassError = array( 0 =>'There is no error, the file uploaded with success. ', 1 =>'The uploaded file exceeds the upload_max_filesize directive in php.ini.', 2 =>'The uploaded file exceeds the MAX_FILE_SIZE that was specified in the HTML form.', 3 =>'The uploaded file was only partially uploaded. ', 4 =>'No file was uploaded. ', 6 =>'Missing a temporary folder. Introduced in PHP 4.3.10 and PHP 5.0.3. ', 7 =>'Failed to write file to disk. Introduced in PHP 5.1.0. ', 10 =>'Input name is not unavailable!', 11 =>'The uploaded file is Unallowable!', 12 =>'Directory unwritable!', 13 =>'File exist already!', 14 =>'File is too big!', 15 =>'Delete file unsuccessfully!', 16 =>'Your version of PHP does not appear to have GIF thumbnailing support.', 17 =>'Your version of PHP does not appear to have JPEG thumbnailing support.', 18 =>'Your version of PHP does not appear to have pictures thumbnailing support.', 19 =>'An error occurred while attempting to copy the source image . Your version of php ('.phpversion().') may not have this image type support.', 20 =>'An error occurred while attempting to create a new image.', 21 =>'An error occurred while copying the source image to the thumbnail image.', 22 =>'An error occurred while saving the thumbnail image to the filesystem. Are you sure that PHP has been configured with both read and write access on this folder?', ); if ($this->errno == 0) return false; else return $uploadClassError[$this->errno]; } } ?> 如何使用这个类呢？ <?php //如果收到表单传来的参数，则进行上传处理，否则显示表单 if(isset($_FILES['uploadinput'])){ //建目录函数，其中参数$directoryName最后没有"/"， //要是有的话，以'/'打散为数组的时候，最后将会出现一个空值 function makeDirectory($directoryName) { $directoryName = str_replace("/","/",$directoryName); $dirNames = explode('/', $directoryName); $total = count($dirNames) ; $temp = ''; for($i=0; $i<$total; $i++) { $temp .= $dirNames[$i].'/'; if (!is_dir($temp)) { $oldmask = umask(0); if (!mkdir($temp, 0777)) exit("不能建立目录 $temp"); umask($oldmask); } } return true; } if($_FILES['uploadinput']['name'] <> ""){ //包含上传文件类 require_once ('upload_class.php'); //设置文件上传目录 $savePath = "upload"; //创建目录 makeDirectory($savePath); //允许的文件类型 $fileFormat = array('gif','jpg','jpge','png'); //文件大小限制，单位: Byte，1KB = 1000 Byte //0 表示无限制，但受php.ini中upload_max_filesize设置影响 $maxSize = 0; //覆盖原有文件吗？ 0 不允许 1 允许 $overwrite = 0; //初始化上传类 $f = new Upload( $savePath, $fileFormat, $maxSize, $overwrite); //如果想生成缩略图，则调用成员函数 $f->setThumb(); //参数列表: setThumb($thumb, $thumbWidth = 0,$thumbHeight = 0) //$thumb=1 表示要生成缩略图，不调用时，其值为 0 //$thumbWidth 缩略图宽，单位是像素(px)，留空则使用默认值 130 //$thumbHeight 缩略图高，单位是像素(px)，留空则使用默认值 130 $f->setThumb(1); //参数中的uploadinput是表单中上传文件输入框input的名字 //后面的0表示不更改文件名，若为1，则由系统生成随机文件名 if (!$f->run('uploadinput',1)){ //通过$f->errmsg()只能得到最后一个出错的信息， //详细的信息在$f->getInfo()中可以得到。 echo $f->errmsg()."<br>n"; } //上传结果保存在数组returnArray中。 echo "<pre>"; print_r($f->getInfo()); echo "</pre>"; } }else{ ?> <form enctype="multipart/form-data" action="" method="POST"> Send this file: <br /> <input name="uploadinput[]" type="file"><br /> <input name="uploadinput[]" type="file"><br /> <input name="uploadinput[]" type="file"><br /> <input type="submit" value="Send File"><br /> </form> <?php } ?> （编辑：银川站长网） 【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! |
