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PHP: Cookies

By Kristoffer Bohmann

Working with Cookies in PHP scripts.

$_COOKIE is an associative array of variables.
$_COOKIE makes data available to all pages on the specified site or section.
$_COOKIE is sent via HTTP Cookies.
$_COOKIE is a superglobal and is therefore available in all scopes throughout a script (can be accessed from all functions, objects etc.).
$_COOKIE data can be read and potentially manipulated by the user, and should not contain confidential information (passwords etc.).
Result pages using $_COOKIE data cannot be bookmarked by the user.
$_COOKIE data is also available in the $_REQUEST varible.