• Почему не работет запись в файл?

    @Bugi_Bugi Автор вопроса
    alexalexes,
    Notice: Undefined variable: file_DZ in C:\xampp\htdocs\Practic_PHP.local\OOP\DZ.php on line 14
    Notice: Undefined property: DZ::$ in C:\xampp\htdocs\Practic_PHP.local\OOP\DZ.php on line 14
    Warning: fwrite() expects parameter 1 to be resource, null given in C:\xampp\htdocs\Practic_PHP.local\OOP\DZ.php on line 14
    Notice: Undefined variable: file_DZ in C:\xampp\htdocs\Practic_PHP.local\OOP\DZ.php on line 18
    Notice: Undefined property: DZ::$ in C:\xampp\htdocs\Practic_PHP.local\OOP\DZ.php on line 18\
    Warning: fclose() expects parameter 1 to be resource, null given in C:\xampp\htdocs\Practic_PHP.local\OOP\DZ.php on line 18