Example of using PHPExcel to identify and format date format in Excel

    function Read_Excel_File2($file_name,&$result){
        require_once 'include/PHPExcel/Classes/PHPExcel/IOFactory.php';
        $result=null;
        $objReader = PHPExcel_IOFactory::createReader('Excel5');
    //    $objReader->setReadDataOnly(true);
        try{
            $objPHPExcel = $objReader->load($file_name);
        }catch(Exception $e){}
        if(!isset($objPHPExcel)) return "无法解析文件";
        $allobjWorksheets = $objPHPExcel->getAllSheets();
        foreach($allobjWorksheets as $objWorksheet){
            $sheetname=$objWorksheet->getTitle();
            $highestRow = $objWorksheet->getHighestRow(); // e.g. 10
            $highestColumn = $objWorksheet->getHighestColumn();
            $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn);
            for ($row = 1; $row <= $highestRow; ++$row) {
                for ($col = 0; $col <= $highestColumnIndex; ++$col) {
                    $cell =$objWorksheet->getCellByColumnAndRow($col, $row);
                    $value=$cell->getValue();
                    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);
                        }
    //                    echo $value,$formatcode,'';

                    }
                    $result[$sheetname][$row-1][$col]=$value;
                }
            }
        }
        return 0;
    }

其中，关于日期判断的部分主要是以下部分：

$cell =$objWorksheet->getCellByColumnAndRow($col, $row);
    $value=$cell->getValue();
    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);
           }
}

以上用到的PHPExcel版本是 1.7.2 。

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