in file excel_reader2.php the constructor is Spreadsheet_Excel_Reader()
in file SpreadsheetReader.php the constructor is __construct()
it seems like the constructor Spreadsheet_Excel_Reader() cannot be executed in php8, and new Spreadsheet_Excel_Reader() returns null. after i created a function called __construct() with the same content, everything solved.
in file excel_reader2.php the constructor is Spreadsheet_Excel_Reader()
in file SpreadsheetReader.php the constructor is __construct()
it seems like the constructor Spreadsheet_Excel_Reader() cannot be executed in php8, and new Spreadsheet_Excel_Reader() returns null. after i created a function called __construct() with the same content, everything solved.