整理 uploadfile 文件上传 比 uploadify 好用

<?php date_default_timezone_set ( 'PRC' ); /** * Created by JetBrains PhpStorm. * User: taoqili * Date: 12-7-18 * Time: 上午11: 32 * UEditor编辑器通用上传类 */ class Uploader { private $fileField; //文件域名 private $file; //文件上传对象 private $config; //配置信息 private $oriName; //原始文件名 private $fileName; //新文件名 private $fullName; //完整文件名,即从当前配置目录开始的URL private $fileSize; //文件大小 private $fileType; //文件类型 private $stateInfo; //上传状态信息, private $stateMap = array( //上传状态映射表，国际化用户需考虑此处数据的国际化 "SUCCESS" , //上传成功标记，在UEditor中内不可改变，否则flash判断会出错 "文件大小超出 upload_max_filesize 限制" , "文件大小超出 MAX_FILE_SIZE 限制" , "文件未被完整上传" , "没有文件被上传" , "上传文件为空" , "POST" => "文件大小超出 post_max_size 限制" , "SIZE" => "文件大小超出网站限制" , "TYPE" => "不允许的文件类型" , "DIR" => "目录创建失败" , "IO" => "输入输出错误" , "UNKNOWN" => "未知错误" , "MOVE" => "文件保存时出错" ); /** * 构造函数 * @param string $fileField 表单名称 * @param array $config 配置项 * @param bool $base64 是否解析base64编码，可省略。若开启，则$fileField代表的是base64编码的字符串表单名 */ public function __construct( $fileField , $config , $base64 = false ) { $this->fileField = $fileField; $this->config = $config; $this->stateInfo = $this->stateMap[ 0 ]; $this->upFile( $base64 ); } /** * 上传文件的主处理方法 * @param $base64 * @return mixed */ private function upFile( $base64 ) { //处理base64上传 if ( "base64" == $base64 ) { $content = $_POST[ $this->fileField ]; $this->base64ToImage( $content ); return; } //处理普通上传 $file = $this->file = $_FILES[ $this->fileField ]; if ( !$file ) { $this->stateInfo = $this->getStateInfo( 'POST' ); return; } if ( $this->file[ 'error' ] ) { $this->stateInfo = $this->getStateInfo( $file[ 'error' ] ); return; } if ( !is_uploaded_file( $file[ 'tmp_name' ] ) ) { $this->stateInfo = $this->getStateInfo( "UNKNOWN" ); return; } $this->oriName = $file[ 'name' ]; $this->fileSize = $file[ 'size' ]; $this->fileType = $this->getFileExt(); if ( !$this->checkSize() ) { $this->stateInfo = $this->getStateInfo( "SIZE" ); return; } if ( !$this->checkType() ) { $this->stateInfo = $this->getStateInfo( "TYPE" ); return; } $this->fullName = $this->getFolder() . '/' . $this->getName(); if ( $this->stateInfo == $this->stateMap[ 0 ] ) { if ( !move_uploaded_file( $file[ "tmp_name" ] , $this->fullName ) ) { $this->stateInfo = $this->getStateInfo( "MOVE" ); } } } /** * 处理base64编码的图片上传 * @param $base64Data * @return mixed */ private function base64ToImage( $base64Data ) { $img = base64_decode( $base64Data ); $this->fileName = time() . rand( 1 , 10000 ) . ".png"; $this->fullName = $this->getFolder() . '/' . $this->fileName; if ( !file_put_contents( $this->fullName , $img ) ) { $this->stateInfo = $this->getStateInfo( "IO" ); return; } $this->oriName = ""; $this->fileSize = strlen( $img ); $this->fileType = ".png"; } /** * 获取当前上传成功文件的各项信息 * @return array */ public function getFileInfo() { return array( "originalName" => $this->oriName , "name" => $this->fileName , "url" => $this->fullName , "size" => $this->fileSize , "type" => $this->fileType , "state" => $this->stateInfo ); } /** * 上传错误检查 * @param $errCode * @return string */ private function getStateInfo( $errCode ) { return !$this->stateMap[ $errCode ] ? $this->stateMap[ "UNKNOWN" ] : $this->stateMap[ $errCode ]; } /** * 重命名文件 * @return string */ private function getName() { return $this->fileName = time() . rand( 1 , 10000 ) . $this->getFileExt(); } /** * 文件类型检测 * @return bool */ private function checkType() { if(!$this->config[ "allowFiles" ]){ return true; } return in_array( $this->getFileExt() , $this->config[ "allowFiles" ] ); } /** * 文件大小检测 * @return bool */ private function checkSize() { return $this->fileSize <= ( $this->config[ "maxSize" ] * 1024 ); } /** * 获取文件扩展名 * @return string */ private function getFileExt() { return strtolower( strrchr( $this->file[ "name" ] , '.' ) ); } /** * 按照日期自动创建存储文件夹 * @return string */ private function getFolder() { $pathStr = $this->config[ "savePath" ]; if ( strrchr( $pathStr , "/" ) != "/" ) { $pathStr .= "/"; } $pathStr .= date( "Ymd" ); if ( !file_exists( $pathStr ) ) { if ( !mkdir( $pathStr , 0777 , true ) ) { return false; } } return $pathStr; } }