PHP Sessions Already Initiated: How to Avoid the Notice?

PHP Sessions Already Initiated: Avoiding the Notice

When initiating a new PHP session while an existing session is already underway, you may encounter a notice warning you that it has been ignored. To prevent this from occurring, consider implementing the following:

Solution:

To effectively handle this situation, utilize an if statement to verify if the $_SESSION variable, which is an array used to store session data, has been set. If it hasn't been set, it indicates that no session has been started yet. Therefore, you can proceed to initiate a new session with session_start(). The code below demonstrates this implementation:

<code class="php"><?php
if(!isset($_SESSION)) 
{ 
    session_start(); 
} 
?></code>

By employing this approach, you can gracefully detect and initiate a session if none is currently active, while avoiding the aforementioned notice when the session has already been established.

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