如何从导入的excel文件中分离日期和时间？(Laravel)

"require": {
    "phpoffice/phpexcel": "^1.8"
}

use PHPExcel_IOFactory;

public function importExcel()
{
    $file = request()->file('excel_file');
    
    $excel = PHPExcel_IOFactory::load($file);
    $sheet = $excel->getActiveSheet();
    
    $data = [];
    
    foreach ($sheet->getRowIterator() as $row) {
        $rowData = [];
        
        foreach ($row->getCellIterator() as $cell) {
            $rowData[] = $cell->getValue();
        }
        
        // 分离日期和时间
        $dateTime = explode(' ', $rowData[0]);
        $date = $dateTime[0];
        $time = $dateTime[1];
        
        $data[] = [
            'date' => $date,
            'time' => $time,
            // 其他列的数据
        ];
    }
    
    // 处理分离后的数据，例如存储到数据库中
    
    return response()->json(['data' => $data]);
}