阿里云服务器出现Warning: Cannot modify header information - headers already sent by (output started at 问题的解决方法: 首先查看header("Content-type:text/html;charset=utf-8");前面是否有输出或空格,这个前面是不能有空格和输出的, 如果没有空格和输出仍出现这种情况,可以去改php.ini配置文件. 主机管理平台>高级环境设置>PHP.ini设置…
How to remove the return code from the terminal prompt In addition to the PS1 environment variable, the PROMPT_COMMAND environment variable also affects your prompt. From the bash man page: If set, the value is executed as a command prior to issuing…