Why Am I Unable to Retrieve Cookie Values in My PHP Code?

Why are my cookies showing no value?

In this PHP scenario, a user encounters difficulties implementing cookies within their code. The setcookie() function is intended to store a cookie for a specified duration, but the retrieved value remains blank.

Analysis:

The setcookie() function requires three parameters: the cookie name, the cookie value, and the expiration time. However, the code snippet provided uses header() to redirect the user, which may be causing a conflict.

Possible Resolution:

To rectify the issue, ensure the cookie is set before any output is generated. Per the PHP manual, cookies must precede any content displayed on the page:

setcookie('username2',$username,time()+60*60*24*365);
**header("Location: ../new.php");**

Additionally, specifying the cookie path as / allows it to work across the entire website, not just the current directory:

setcookie('password',$password,time()+60*60*24*365, '/');

By following these suggestions, the code should successfully set and retrieve cookie values.

The above is the detailed content of Why Am I Unable to Retrieve Cookie Values in My PHP Code?. For more information, please follow other related articles on the PHP Chinese website!