Hallo Community ,
PHP
bei meinem Retro habe ich ein Problem undzwar kommen folgende errors auf jeder seite
Use of undefined constant REMOTE_ADDR - assumed 'REMOTE_ADDR' in C:\xampp\htdocs\data_classes\server-data.php_data_classes-core.php.php
Use of undefined constant username - assumed 'username' in C:\xampp\htdocs\data_classes\server-data.php_data_classes-core.php.php
Function session_is_registered() is deprecated in C:\xampp\htdocs\data_classes\server-data.php_data_classes-core.php.php
[b]Notice[/b]: Undefined index: remember in C:\xampp\htdocs\data_classes\server-data.php_data_classes-core.php.php[/b] on line [b]84[/b]
Function session_is_registered() is deprecated in C:\xampp\htdocs\data_classes\server-data.php_data_classes-core.php.php
Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in [b]C:\xampp\htdocs\data_classes\server-data.php_data_classes-core.php.php
Notice: A session had already been started - ignoring session_start() in C:\xampp\htdocs\index.ph on line 5
Notice: Use of undefined constant username - assumed 'username' in C:\xampp\htdocs\index.php on line 11Kann mir jemand helfen? 
