What potential issues can arise if session files are not deleted properly in PHP?

If session files are not deleted properly in PHP, it can lead to disk space being consumed unnecessarily, potentially causing performance issues on the server. To solve this issue, you can use the session garbage collection mechanism provided by PHP to automatically delete expired session files. 

// Enable session garbage collection
ini_set('session.gc_probability', 1);
ini_set('session.gc_divisor', 100);
ini_set('session.gc_maxlifetime', 3600);

// Start the session
session_start();

// Your PHP code goes here

Keywords

session files deletion PHP security storage

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