PHP

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PHP cookies 

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PHP cookies - Dec 13, 2008 at 22:00 PM by Rajmeet Ghai  

A cookie is used for identification purposes. It is more commonly used to identify a user in a session. It is a small file the application inserts on the users computer. With PHP one can create and retrieve the cookie.

Setting cookie in php:

Cookies in PHP can be set using the setcookie() function. This must appear before the HTML tag.

Syntax:

Setcookie(name, value, expire, path, domain);

Example: here, the cookie name sample is assigned a value jim. The cookie expires after an hour.

Setcookie(“sample”, “jim”, time()+3600);

Retrieving cookie value:

The cookie that is set can be retrieved as shown below:

Echo $_cookie[“user”];

Isset() function can be used to find if the cookie is set.

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