PHP and Cookies, A Good Mix!
By Dennis Pallett2005-05-26
Storing Arrays
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One feature of cookies that is often missed in articles is the ability to story arrays. Cookies can be used to store multi-dimensional arrays, which can be extremely useful to store data.
Consider the following code;
<?php
setcookie ("name[first]", "Dennis", time() + (60*60*24));
setcookie ("name[last]", "Pallett", time() + (60*60*24));
?>
You can then display these two cookies using the following code:
<?php
echo "First Name: " . $_COOKIE['name']['first'];
echo "<br />Last Name: " . $_COOKIE['name']['last'];
?>
The cookie 'name' is an array, and has multiple values. You can even go deeper and have multi-dimensional arrays, e.g. $_COOKIE['name']['test']['something']['value']. You could store whole arrays of data in cookies. But beware that you don't store too much data, there are certain size limits to cookies.
Tutorial Pages:
» Introduction
» Cookies in a nutshell
» Using Cookies
» Checking if cookies are enabled
» Storing Arrays
» In Conclusion...
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