Can I Store an Array as a Session Variable in PHP and How Does It Behave Across Pages?

Array as Session Variable in PHP

Problem:

Can an array be utilized as a session variable in PHP? In the context of a multiple-page scenario, it is necessary to maintain a session array containing a list of names on the second page. Will the session array retain the original list or be updated with new names if another cell is clicked on the first page?

Answer:

PHP indeed allows arrays to be employed as session variables. Here's a code snippet to demonstrate:

<code class="php"><?php
session_start();
$_SESSION["my_array"] = ["apple", "banana", "orange"];
?></code>

Regarding your follow-up question, once a session variable is established, it persists until explicitly changed or unset. Therefore, unless modified on the third page, the session array will retain the same list until it is modified or removed on the second page. To update the session array, you can simply assign a new value to it:

<code class="php"><?php
session_start();
$_SESSION["my_array"] = ["apple", "banana", "cherry"];
?></code>

The above is the detailed content of Can I Store an Array as a Session Variable in PHP and How Does It Behave Across Pages?. For more information, please follow other related articles on the PHP Chinese website!