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phpexcel导入合并表格excel的操作

处理合并单元格的excel的操作，搜到一篇文章做参考

http://www.thinkphp.cn/code/403.html

/**
     +----------------------------------------------------------
     * Import Excel | 2013.08.23
     * Author:HongPing <hongping626@qq.com>
     +----------------------------------------------------------
     * @param  $file   upload file $_FILES
     +----------------------------------------------------------
     * @return array   array("error","message")
     +----------------------------------------------------------     
     */   
    public function importExecl($file){ 
        if(!file_exists($file)){ 
            return array("error"=>0,'message'=>'file not found!');
        } 
        Vendor("PHPExcel.PHPExcel.IOFactory"); 
        $objReader = PHPExcel_IOFactory::createReader('Excel5'); 
        try{
            $PHPReader = $objReader->load($file);
        }catch(Exception $e){}
        if(!isset($PHPReader)) return array("error"=>0,'message'=>'read error!');
        $allWorksheets = $PHPReader->getAllSheets();
        $i = 0;
        foreach($allWorksheets as $objWorksheet){
            $sheetname=$objWorksheet->getTitle();
            $allRow = $objWorksheet->getHighestRow();//how many rows
            $highestColumn = $objWorksheet->getHighestColumn();//how many columns
            $allColumn = PHPExcel_Cell::columnIndexFromString($highestColumn);
            $array[$i]["Title"] = $sheetname; 
            $array[$i]["Cols"] = $allColumn; 
            $array[$i]["Rows"] = $allRow; 
            $arr = array();
            $isMergeCell = array();
            foreach ($objWorksheet->getMergeCells() as $cells) {//merge cells
                foreach (PHPExcel_Cell::extractAllCellReferencesInRange($cells) as $cellReference) {
                    $isMergeCell[$cellReference] = true;
                }
            }
            for($currentRow = 1 ;$currentRow<=$allRow;$currentRow++){ 
                $row = array(); 
                for($currentColumn=0;$currentColumn<$allColumn;$currentColumn++){;                
                    $cell =$objWorksheet->getCellByColumnAndRow($currentColumn, $currentRow);
                    $afCol = PHPExcel_Cell::stringFromColumnIndex($currentColumn+1);
                    $bfCol = PHPExcel_Cell::stringFromColumnIndex($currentColumn-1);
                    $col = PHPExcel_Cell::stringFromColumnIndex($currentColumn);
                    $address = $col.$currentRow;
                    $value = $objWorksheet->getCell($address)->getValue();
                    if(substr($value,0,1)=='='){
                        return array("error"=>0,'message'=>'can not use the formula!');
                        exit;
                    }
                    if($cell->getDataType()==PHPExcel_Cell_DataType::TYPE_NUMERIC){
                        $cellstyleformat=$cell->getParent()->getStyle( $cell->getCoordinate() )->getNumberFormat();
                        $formatcode=$cellstyleformat->getFormatCode();
                        if (preg_match('/^([$[A-Z]*-[0-9A-F]*])*[hmsdy]/i', $formatcode)) {
                            $value=gmdate("Y-m-d", PHPExcel_Shared_Date::ExcelToPHP($value));
                        }else{
                            $value=PHPExcel_Style_NumberFormat::toFormattedString($value,$formatcode);
                        }                
                    }
                    if($isMergeCell[$col.$currentRow]&&$isMergeCell[$afCol.$currentRow]&&!empty($value)){
                        $temp = $value;
                    }elseif($isMergeCell[$col.$currentRow]&&$isMergeCell[$col.($currentRow-1)]&&empty($value)){
                        $value=$arr[$currentRow-1][$currentColumn];
                    }elseif($isMergeCell[$col.$currentRow]&&$isMergeCell[$bfCol.$currentRow]&&empty($value)){
                        $value=$temp;
                    }
                    $row[$currentColumn] = $value; 
                } 
                $arr[$currentRow] = $row; 
            } 
            $array[$i]["Content"] = $arr; 
            $i++;
        } 
        spl_autoload_register(array('Think','autoload'));//must, resolve ThinkPHP and PHPExcel conflicts
        unset($objWorksheet); 
        unset($PHPReader); 
        unset($PHPExcel); 
        unlink($file); 
        return array("error"=>1,"data"=>$array); 
    }