摘要： session_start()使用的时候，总会出现这种问题。 Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/u114264/include/db_mysql.class.php:1) in /home/u114264/login1.php on line 3 Warning: session_start() [function.session-start]: Cannot send s 阅读全文