What are the potential pitfalls of working with arrays in PHP sessions?

One potential pitfall of working with arrays in PHP sessions is that storing large arrays can consume a lot of memory and slow down the application. To solve this issue, it is recommended to serialize the array before storing it in the session and unserialize it when retrieving it. 

// Serialize the array before storing it in the session
$_SESSION['my_array'] = serialize($myArray);

// Unserialize the array when retrieving it from the session
$myArray = unserialize($_SESSION['my_array']);

Keywords

arrays PHP sessions serialization session data loss session hijacking

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