// 引入PHPEXCEL文件
require_once('PHPExcel/PHPExcel/IOFactory.php');
// 文件路径
$filePath = 'test.xlsx';
$reader = \PHPExcel_IOFactory::createReaderForFile($filePath);
$PHPExcel = $reader->load($filePath, 'utf-8');
$sheet = $PHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow();
$highestColumm = $sheet->getHighestColumn();
$data = array();
for($rowIndex=1;$rowIndex<=$highestRow;$rowIndex++){
    for($colIndex='A';$colIndex<=$highestColumm;$colIndex++){
        $addr = $colIndex . $rowIndex;
        $cell = $sheet->getCell($addr)->getValue();
        if($cell instanceof PHPExcel_RichText){
            $cell = $cell->__toString();
        }
        $data[$rowIndex][$colIndex] = $cell;
    }
}