Warning: session_start(): Cannot send session_PHP教程

Warning: session_start(): Cannot send session

Warning: session_start(): Cannot send session cache limiter

echo "Homen
";
session_start();

Warning: session_start(): Cannot send session cache limiter

I want to know why a warning message appears when adding session_start();

session_start(): Put it at the beginning of the file and try it

Note: If you are using cookie-based sessions, you must call session_start() before anything is outputted to the browser.

If you are using cookie-based sessions, do not output anything to the browser before session_start

http://www.bkjia.com/PHPjc/632469.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632469.htmlTechArticleWarning: session_start(): Cannot send session Warning: session_start(): Cannot send session cache limiter echo a href= '../home.php'Home/anbr /; session_start(); Warning: session_sta...