How can URL redirection affect PHP session handling?

URL redirection can affect PHP session handling by causing the session ID to be lost during the redirection process. This can result in the loss of session data and potentially compromise the security of the application. To solve this issue, you can use the session_regenerate_id() function before performing any redirection to ensure that a new session ID is generated and maintained. 

session_start();

// Regenerate session ID
session_regenerate_id();

// Perform URL redirection
header('Location: new_page.php');
exit();

Keywords

URL redirection PHP session handling cookies header function session variables

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