PHPExcel读写封装

<?

require_once ('inc/PHPExcel/PHPExcel/IOFactory.php');

/**
 * @author lgl
 * 使用实例
 * $fieldMap=['昵称'=>'username','头像'=>'photo','签名'=>'sign',"性别"=>'sex'];//header和字段映射
 * $fieldAttr=['性别'=>'time'];//对应列的字段值转化类型
 * $readFile= new ReadExcelBiz(dirname(__FILE__).'/3-26上传.xls',$fieldMap,$fieldAttr,3);
 * $rowsNum=$readFile->getRowsNum();
 * for($i=1;$i<=$rowsNum;$i++){
 * print_r($readFile->getNextRow());
 * }
 */
namespace PublicService\Biz;
class ReadExcelBiz
{
    private $_objExcel = null;
    private $_objReader = null;
    private $_objCurSheet = null;
    private $_charset = 'utf-8';
    private $_head = array();
    private $_fieldMap = array();
    private $_fieldAttr = array();
    private $_cols = 0;
    private $_rows = 0;
    private $_rowCursor = 0;

    /**
     * ReadExcelBiz constructor.
     * @param $filepath   excel文件路径
     * @param array $fieldMap  字段映射
     * @param array $fieldAttr  字段类型转化
     * @param int $sheetindex sheet下标
     * 例子
     *       $fieldMap=['昵称'=>'username','头像'=>'photo','签名'=>'sign',"性别"=>'sex'];
     *        $fieldAttr=['性别'=>'date'];   设置某列值转化的类型  目前只支持 'date' ,'datetime','time'
     */
    public function __construct($filepath, $fieldMap = array(), $fieldAttr = array(), $sheetindex = 0)
    {
        try{

            $this->_objReader = \PHPExcel_IOFactory::createReaderForFile($filepath);
            $this->_objReader->setReadDataOnly(true);
            $this->_objExcel = $this->_objReader->load($filepath);
            $this->_objCurSheet = $this->_objExcel->getSheet($sheetindex);
            $this->_rows = $this->_objCurSheet->getHighestRow();
            $this->_cols = $this->char2num($this->_objCurSheet->getHighestColumn());
            $this->_fieldAttr = $fieldAttr;
            if(count($fieldMap) > 0 || count($fieldAttr) > 0)
            {
                $this->getHead();
                for($i=0; $i< count($this->_head); $i++)
                {
                    if($fieldMap[$this->_head[$i]])
                        $this->_fieldMap[$i] = $fieldMap[$this->_head[$i]];

                    if($fieldAttr[$this->_head[$i]])
                        $this->_fieldAttr[$i] = $fieldAttr[$this->_head[$i]];
                }
            }
        }
        catch(\Exception $e){
            echo $e->getMessage();
            exit;
        }
    }

    /**
     * @desc 获取excel头
     * @return array|bool
     */
    public function getHead()
    {
        $this->_rowCursor = 1;
        $this->_head = $this->getRow($this->_rowCursor, false);
        return $this->_head;
    }

    /**
     * @desc 获取第一行数据
     * @return array|bool
     */
    public function getFirstRow()
    {
        return $this->getRow(1);
    }

    /**
     * @desc 获取下一行数据
     * @return array|bool
     */
    public function getNextRow()
    {
        $this->_rowCursor++;
        return $this->getRow($this->_rowCursor);
    }

    /**
     * @desc 获取前一行数据
     * @return array|bool
     */
    public function getPrevRow()
    {
        $this->_rowCursor--;
        return $this->getRow($this->_rowCursor);
    }

    /**
     * @desc 获取行数据
     * @param $index  第几行
     * @param bool $useFieldMap  是否使用字段映射
     * @return array|bool
     */
    public function getRow($index, $useFieldMap = true)
    {
        if($index > $this->_rows)
            return FALSE;

        $row = array();
        for($col = 0; $col < $this->_cols; $col++)
        {
            $objCell = $this->_objCurSheet->getCellByColumnAndRow($col, $index);
            if($objCell->getDataType() == \PHPExcel_Cell_DataType::TYPE_FORMULA)
                $value = $objCell->getCalculatedValue();
            else
                $value = $objCell->getFormattedValue();

            $value = trim($this->decode($this->transforValue(trim($value), $col)));
            if($useFieldMap && $this->_fieldMap[$col])
                $row[$this->_fieldMap[$col]] = $value;
            else if(!$useFieldMap || count($this->_fieldMap) == 0)
                $row[$col] = $value;
        }

        return $row;
    }

    /**
     * @desc 获取总列数
     * @return int
     */
    public function getColsNum()
    {
        return $this->_cols;
    }

    /**
     * @desc 获取总行数
     * @return int
     */
    public function getRowsNum()
    {
        return $this->_rows;
    }

    private function char2num($pColumn)
    {
        $strlen = strlen($pColumn);
        $columnNum = 0;
        for($i = 0;$i < $strlen; $i++)
        {
            $str = substr($pColumn, $i, 1);
            $columnNum = $columnNum * 26 + (ord($str) - ord('A') + 1);
        }

        return $columnNum;
    }

    /**
     * @desc 转码
     * @param $str
     * @return mixed|string
     */
    private function decode($str)
    {
        if(function_exists('mb_convert_encoding'))
            return mb_convert_encoding($str, $this->_charset, "utf-8");
        else
            return iconv("utf-8", $this->_charset, $str);
    }

    /**
     * @desc 单元格值转化
     * @param $value
     * @param $col
     * @return false|string
     */
    private function transforValue($value, $col)
    {
        $formatCode = array('date' => 'Y-m-d', 'datetime' => 'Y-m-d H:i:s', 'time' => 'H:i:s');
        $dataType = $this->_fieldAttr[$col];
        if($formatCode[$dataType])
        {
            if(is_numeric($value))
                $value = gmdate($formatCode[$dataType], \PHPExcel_Shared_Date::ExcelToPHP($value));
            else if($value != "")
                $value = date($formatCode[$dataType], strtotime($value));
        }

        return $value;
    }

}

<?

require_once ('inc/PHPExcel/PHPExcel/IOFactory.php');

class ExcelWriter
{
    private $_objExcel = null;
    private $_objActSheet = null;
    private $_charset = '';
    private $_head = array();
    private $_rows = 0;
    private $_excelClass = 'Excel5';
    private $_excelPostfix = '.xls';

    public function __construct($config = array())
    {
        $this->_objExcel = new PHPExcel();
        $this->_objActSheet = $this->setActiveSheetIndex(0);
        $this->_charset = isset($config['charset']) ? $config['charset'] : MYOA_CHARSET;
    }

    public function setActiveSheetIndex($index)
    {
        return $this->_objExcel->setActiveSheetIndex($index);
    }

    public function setFileName($filename)
    {
        $this->_filename = $this->encode($filename);
        $this->_objActSheet->setTitle($this->encode($filename));
    }

    public function setTitle($title)
    {
        $this->_objActSheet->setTitle($this->encode($title));
    }

    public function addHead($row)
    {
        $this->_rows++;
        $row = $this->row2array($row);
        $this->_head = $row;
        for($col = 0; $col < count($row); $col++)
        {
            $data = $this->encode($row[$col]);

            $width = ceil(strlen($data)*1.2);
            $style = $this->_objActSheet->getStyleByColumnAndRow($col, '1');
            $align = $style->getAlignment();
            $align->setHorizontal(PHPExcel_Style_Alignment::VERTICAL_CENTER);
            $align->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);

            $this->_objActSheet->getColumnDimensionByColumn($col)->setWidth($width);
            $this->_objActSheet->setCellValueExplicitByColumnAndRow($col, $this->_rows, $data, PHPExcel_Cell_DataType::TYPE_STRING);
        }
    }

    public function addRow($row)
    {
        $this->_rows++;
        $row = $this->row2array($row);
        for($col = 0; $col < count($row); $col++)
        {
            $data = $row[$col];
            if(substr($data, 0, 1) == '"' && substr($data, -1) == '"')
                $data = substr($data, 1, -1);

            $data = $this->encode($data);
            $this->_objActSheet->setCellValueExplicitByColumnAndRow($col, $this->_rows, $data, PHPExcel_Cell_DataType::TYPE_STRING);
        }
    }

    public function Save()
    {
        ob_end_clean();
        Header("Cache-control: private");
        Header("Content-type: application/vnd.ms-excel");
        Header("Accept-Ranges: bytes");
        Header("Accept-Length: ".ob_get_length());
        Header("Content-Disposition: attachment; ".$this->get_filename($this->_filename.$this->_excelPostfix));

        $objWriter = PHPExcel_IOFactory::createWriter($this->_objExcel, $this->_excelClass);
        $objWriter->save("php://output");
    }

    private function encode($str)
    {
        if(function_exists('mb_convert_encoding'))
            return mb_convert_encoding($str, "utf-8", $this->_charset);
        else
            return iconv($this->_charset, "utf-8", $str);
    }

    private function row2array($row)
    {
        if(is_array($row))
            return $row;

        $delimiter = ',';
        $enclosure = '"';
        $expr_field = '/'.$delimiter.'(?=(?:[^'.$enclosure.']*'.$enclosure.'[^'.$enclosure.']*'.$enclosure.')*(?![^'.$enclosure.']*'.$enclosure.'))/';
        $row = preg_split($expr_field, trim($row));
        $row = preg_replace(array('/"(.*)"$/s','/""/s',"/\<\?/s"), array('$1','"',"&lt;?_("), $row);

        return $row;
    }

    private function get_filename($filename)
    {
        $filename_encoded = str_replace("+", "%20", urlencode($filename));
        if (preg_match("/msie|trident/i", $_SERVER['HTTP_USER_AGENT']))
            return 'filename="' . $filename_encoded . '"';
        else if (preg_match("/Firefox/", $_SERVER['HTTP_USER_AGENT']))
            return 'filename*="utf8\'\'' . $filename . '"';
        else
            return 'filename="' . $filename . '"';
    }
}
?>