Hello everyone. I have a probem to start a session after I upgraded the domain to 7.3. The content down is my function.php.

[xhulio]

<?php
include_once 'psl-config.php';
 
function sec_session_start() {
    $session_name = 'sec_session_id';   // Set a custom session name 
    $secure = SECURE;
    // This stops JavaScript being able to access the session id.
    $httponly = true;
    // Forces sessions to only use cookies.
    if (ini_set('session.use_only_cookies', 1) === FALSE) {
        header("Location: ../error.php?err=Could not initiate a safe session (ini_set)");
        exit();
    }
    // Gets current cookies params.
    $cookieParams = session_get_cookie_params();
    session_set_cookie_params($cookieParams["lifetime"], $cookieParams["path"], $cookieParams["domain"], $secure, $httponly);
    // Sets the session name to the one set above.
    session_name($session_name);
    session_start();            // Start the PHP session 
    session_regenerate_id();    // regenerated the session, delete the old one. 
}

[ginerjm]

include_once 'psl-config.php';
function sec_session_start() 
{
	$session_name = 'sec_session_id';   // Set a custom session name 
	$secure = SECURE;
	// This stops JavaScript being able to access the session id.
	$httponly = true;
	// Forces sessions to only use cookies.
	if (ini_set('session.use_only_cookies', 1) === FALSE) 
	{
		header("Location: ../error.php?err=Could not initiate a safe session (ini_set)");
		exit();
	}
	// Gets current cookies params.
	$cookieParams = session_get_cookie_params();
	session_set_cookie_params($cookieParams["lifetime"], 
				$cookieParams["path"], 
				$cookieParams["domain"], 
				$secure, 
				$httponly);
	// Sets the session name to the one set above.
	session_name($session_name);
	session_start();            // Start the PHP session 
	session_regenerate_id();    // regenerated the session, delete the old one. 
}

Ok - you seem to be retrieving the pre-set cookie param from the ini file settings and re-setting them to the same values.  Do I not understand what the manual is telling me?  After that you set your own custom name for your session and then starting it up.  I don't understand what your topic title is saying so what is the problem here?

Edited November 9, 2021 by ginerjm

[xhulio]

Hello thank you very much for your response and for your time. Look the situation is like this because I don't have so much experience in PHP. It is one online quiz in one subdomain that work fine with PHP version 7.1 but when I change to PHP 7.3 the quiz.php file doesn't work it shows an error like this Could not initiate a safe session (ini_set) in Firefox ( in chrome show blank page). The other pages works fine even I log in or I can register for that quiz, but when I try to take the quiz and click there to open the page shows me an error , that I think is because of some changes in PHP 7.3 related with this part of functions.php

[ginerjm]

Check the manual for the changes that 7.3 have made and see if any of them apply to your code.

Why are you doing a custom session anyway if you are so new to PHP?

[xhulio]

Intern work  . Thank you very much I will check manually