What are common reasons for a PHP login script to work in Firefox but not in other browsers like Internet Explorer, Opera, and Chrome?

The most common reason for a PHP login script to work in Firefox but not in other browsers like Internet Explorer, Opera, and Chrome is due to session cookie settings. Some browsers may have stricter cookie policies that prevent sessions from being properly maintained. To solve this issue, you can adjust the session cookie parameters in your PHP script to ensure compatibility with different browsers. 

// Adjust session cookie parameters for cross-browser compatibility
session_set_cookie_params(0, '/', '.yourdomain.com', isset($_SERVER["HTTPS"]), true);
session_start();

Keywords

PHP login script browser compatibility cross-browser debugging

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