php上傳檔案類

標籤：get   return   his   one   class   load   move   類型資訊   const   

<?phpclass Upload {    private $_max_size;    private $_type_map;    private $_allow_ext_list;    private $_allow_mime_list;    private $_upload_path;    private $_prefix;    private $_error;//當前的錯誤資訊    public function getError() {        return $this->_error;    }    public function __construct() {        $this->_max_size = 1024*1024;        $this->_type_map = array(            ‘.png‘     => array(‘image/png‘, ‘image/x-png‘),            ‘.jpg‘    => array(‘image/jpeg‘, ‘image/pjpeg‘),            ‘.jpeg‘    => array(‘image/jpeg‘, ‘image/pjpeg‘),            ‘.gif‘    => array(‘image/gif‘),            );        $this->_allow_ext_list = array(‘.png‘, ‘.jpg‘);        $allow_mime_list = array();        foreach($this->_allow_ext_list as $value) {            //得到每個尾碼名            $allow_mime_list = array_merge($allow_mime_list, $this->_type_map[$value]);        }        // 去重        $this->_allow_mime_list = array_unique($allow_mime_list);        $this->_upload_path = ‘./‘;        $this->_prefix = ‘‘;    }    public function __set($p, $v) {//屬性重載        $allow_set_list = array(‘_upload_path‘, ‘_prefix‘, ‘_allow_ext_list‘, ‘_max_size‘);        //可以不加：_ 進行設定        if(substr($p, 0, 1) !== ‘_‘) {            $p = ‘_‘ . $p;        }        $this->$p = $v;    }    /**     * 上傳單個檔案     */    public function uploadOne($tmp_file) {        # 是否存在錯誤        if($tmp_file[‘error‘] != 0) {            $this->_error = ‘檔案上傳錯誤‘;            return false;        }        # 尺寸        if ($tmp_file[‘size‘] > $this->_max_size) {            $this->_error = ‘檔案過大‘;            return false;        }        # 類型        # 保證修改允許的尾碼名，就可以影響到$allow_ext_list和$allow_mime_list        # 設定一個尾碼名與mime的映射關係                # 尾碼，從原始檔案名中提取        $ext = strtolower(strrchr($tmp_file[‘name‘], ‘.‘));        if (!in_array($ext, $this->_allow_ext_list)) {            $this->_error = ‘類型不合法‘;            return false;        }        # MIME, type元素。        // $allow_mime_list = array(‘image/png‘, ‘image/gif‘, ‘image/jpeg‘, ‘image/pjpeg‘, ‘image/x-png‘);                if (!in_array($tmp_file[‘type‘], $this->_allow_mime_list)) {            $this->_error = ‘類型不合法‘;            return false;        }        //PHP自己擷取檔案的mime，進行檢測        $finfo = new Finfo(FILEINFO_MIME_TYPE);//獲得一個可以檢測檔案MIME類型資訊的對象        $mime_type = $finfo->file($tmp_file[‘tmp_name‘]);//檢測        if (!in_array($mime_type, $this->_allow_mime_list)) {            $this->_error = ‘類型不合法‘;            return false;        }        # 移動        # 上傳檔案儲存體地址        //建立子目錄        $subdir = date(‘YmdH‘) . ‘/‘;        if(!is_dir($this->_upload_path . $subdir)) {//檢測是否存在            //不存在            mkdir($this->_upload_path . $subdir);        }        # 科學起名        $upload_filename = uniqID($this->_prefix, true) . $ext;        if (move_uploaded_file($tmp_file[‘tmp_name‘], $this->_upload_path . $subdir . $upload_filename)) {            // 移動成功，返迴文件名            return $subdir . $upload_filename;        } else {            // 移動失敗            $this->_error = ‘移動失敗‘;            return false;        }    }}

 

php上傳檔案類