PHP Cookies
cookies are used to store the data in browser.
Cookies of the webpage should be created before the HTML tag. Therfore setcookie(); function will be used first of the webpage.
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<?php
setcookie(name, value, expire, path, domain);
?>
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Here setcookie(); function will create a cookie with name “tobby” , value as “tobby cook” and expires after 1 hour from the time of creation.
time()+3600 will makes the cookie to be expire in 1 hour i.e., 60 seconds * 60 minutes
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<?php
setcookie("Tobby", "tobby cook", time()+3600);
?>
<html>
</html>
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Display the cookies
The cookie “tobby” will store the value “tobby cook”. $_COOKIE[‘tobby’]; will display “tobby cook”.
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<?php
echo $_COOKIE[‘tobby’];
?>
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Check whether cookie is present or not
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<?php
if(isset($_COOKIE[‘tobby’]))
{
echo “Cookie named Tobby already created”;
}
else
{
echo “Cookie named Tobby oesn’t exists2”;
}
?>
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Deleting the cookies
For cookie to be expire in one day – 86400 ( 60 seconds * 60 minutes * 24 hours)
time()+86400 or time()+60*60*24
For cookie to be expire in one month – 2592000 ( 60 seconds * 60 minutes * 24 hours * 30 days)
time()+2592000 or time()+60*60*24*30
When we need to delete the cookie before the browser closes, time () with negative value will be used.
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<?php
setcookie("Tobby", "tobby cook", time()-1);
?>
<html>
</html>
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