How can PHP arrays be effectively used to store multiple selected IDs in a session for further processing?

When multiple IDs need to be stored in a session for further processing, PHP arrays can be used effectively. You can create an array to store the selected IDs, and then serialize the array before storing it in the session. When retrieving the data from the session, you can unserialize the array to access the selected IDs for processing. 

// Start the session
session_start();

// Check if the IDs array already exists in the session
if (!isset($_SESSION['selected_ids'])) {
    $_SESSION['selected_ids'] = [];
}

// Add a new ID to the array
$selected_id = 123; // Example ID
$_SESSION['selected_ids'][] = $selected_id;

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

// To retrieve the selected IDs from the session
$selected_ids = unserialize($_SESSION['selected_ids']);

Keywords

PHP arrays session processing IDs

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