What is cookie in PHP

In this article I will go to explain about PHP cookie.
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PHP Cookies

Cookie is a little piece of client site information. It is used for storing data in the remote browser and thus tracking or identifying returns user.

Create a cookie

You can create a cookie by setcookie().

Syntax of  a cookie

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

Example of  creating a cookie

<html>

<body>

<?php

setcookie("User", "Sharad", time()+2600);

?>

</body>

</html>


Example of  expiration a cookie
 

<html>

<body>

<?php

$expire=time()+60*60*24;

setcookie("User", "XYZ", $expire);

?>

</body>

</html>


In the above example cookie is expire after 60 sec* 60 min* 24 hours.
 

Example of retrieve a cookie value
 

<html>

<body>

<?php

echo $_COOKIE["User"];

print_r($_COOKIE);

?>

</body>

</html>


Output of retrieve cookie:

cookie.jpg



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