Cookie in PHP is used to identify a user.
Create a cookie:
Setcookie() can be used for this purpose. It appears before the <html> tag.
setcookie(name, value, expire, path, domain);
Example:
Here, a cookie name user is assigned a value Sample. The cookie expires after an hour
setcookie(“user”, “Sample”, time()+3600);
Retrieve a cookie:
The cookie can be retrieved using PHP $_COOKIE variable
Echo the value:
<?php
echo $_COOKIE["user"];
?>
A cookie is created by using setCookie() function. This function takes 3 arguments:
- Name – The name of the cookie to be used to retrieve the cookie.
- Value - The value is persisted in the cookie. Usually, user names and last visit date / time are used
- Expiration – The date until which the cookie is alive. After the date the cookie will be expired. If the expiry date is not set, then the cookie is treated as a default cookie and will expire when the browser restarts.
Example code:
<?php
//Set 60 days as the life time for the cookie.
//seconds * minutes * hours * days + current time
$inTwoMonths = 60 * 60 * 24 * 60 + time();
setcookie('lastVisit', date("G:i - m/d/y"), $inTwoMonths);
?>
No comments:
Post a Comment