PHP 导入excel

header("Content-type:text/html;charset=utf-8");
$dir = dirname(__FILE__);
require $dir . "/PHPExcel/db.php";
require $dir . "/PHPExcel/PHPExcel/IOFactory.php";
$fileName = $dir . "/export.xlsx";

//全部加载
//$object = PHPExcel_IOFactory::load($fileName);

//部分加载
$fileType = PHPExcel_IOFactory::identify($fileName);
$objReader = PHPExcel_IOFactory::createReader($fileType);
$sheetName = "一年级";
$objReader->setLoadSheetsOnly($sheetName);
$object = $objReader->load($fileName);

//循环输出
foreach($object->getWorksheetIterator() as $sheet) {
    foreach($sheet->getRowIterator() as $row) {
        if($row->getRowIndex() < 2) {
            continue;
        }
        foreach($row->getCellIterator() as $cell) {
            $data = $cell->getValue();
            echo $data." ";
        }
        echo "<br>";
    }
    echo "<br>";
}