跟大家讲解下有关session_start();报错有关问题，相信小伙伴们对这个话题应该也很关注吧，现在就为小伙伴们说说session_start();报错有关问题，小编也收集到了有关session_start();报错有关问题的相关资料，希望大家看到了会喜欢。

session_start();报错问题test.php文件内容site_test.php文件内容当打开test.php时报以下错误，弄了很久也弄不明白，不知为什么？Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/cybertry/public_html/idearforyou.com/site_test.php:1) in /home/cybertry/public_html/idearforyou.com/site_test.php on line 2Warning: Cannot modify header information - headers already sent by (output started at /home/cybertry/public_html/idearforyou.com/site_test.php:1) in /home/cybertry/public_html/idearforyou.com/site_test.php on line 3------解决方案--------------------session_start();前面不能有输出------解决方案--------------------site_test.php 是什么编码，如果是utf-8编码，确认没有bom头。

来源：php中文网