how to use cookies php

php cookies

//Cookies
//Cookies are stored on the client side. cookies are not as secure as sessions
//and it is recommended that you use sessions as much as possible.
====================
Version 1 for cookies
====================

<?php
if(isset($_COOKIE['nameofcookie'])){ 
    echo 'User ' . $_COOKIE['nameofcookie'] . ' is set<br>';
}else{
    echo'User is not set';
}


====================
Version 2 for cookies
====================
<?php
    //to change cookie
    setcookie('nameofcookie','Frank', time() + (86400 *30));//set for a day

if(isset($_COOKIE['nameofcookie'])){ 
    echo 'User ' . $_COOKIE['nameofcookie'] . ' is set<br>';
}else{
    echo'User is not set';
}

=======================
Version 3 for cookies
=======================

<?php
    //to change cookie
    setcookie('nameofcookie','Frank', time() + (86400 *30));//set for a day
    //to unset a cookie just set the time that is already past
    //delete cookie
    setcookie('nameofcookie','Frank', time() -3600);

if(isset($_COOKIE['nameofcookie'])){ 
    echo 'User ' . $_COOKIE['nameofcookie'] . ' is set<br>';
}else{
    echo'User is not set';
}

=========================
Version 4 check for cookies
=========================
<?php
    //to change cookie
    setcookie('nameofcookie','Frank', time() + (86400 *30));//set for a day

    if(count($_COOKIE) > 0){
        echo 'There are ' . count($_COOKIE)  .  ' cookies saved<br>';
        }else{
            echo 'There are no cookies saved<br>';
        }

if(isset($_COOKIE['nameofcookie'])){ 
    echo 'User ' . $_COOKIE['nameofcookie'] . ' is set<br>';
}else{
    echo'User is not set';
}

Posted by: Guest on May-13-2020

setcookie("cookiename", "cookievalue", time(), ".mydomain.tld", "/") // coookiename: The name of your cookie // cookievalue: The value of your cookie // Time: The expiration date of your cookie. If you plan to make a product for the EU, it's 13 months max. // .mydomain.tld: The domain that your webpage is using. You can only use the domain that the PHP file is on. Adding a dot before your domain will cover all subdomains. // "/": This is the folder where your cookie will apply. If you want a specific cookie for the /mySpecialSuperSecretPages folder, you have to set /mySpecialSuperSecretPages // Check the source for more options.

//Cookies //Cookies are stored on the client side. cookies are not as secure as sessions //and it is recommended that you use sessions as much as possible. <?php if(isset($_POST['submit'])){ $username = htmlentities($_POST['username']); setcookie('nameofcookie', $username, time()+3600); //1hour time limit header('Location: page2.php'); } ?> <!DOCTYPE html> <html> <head> <title>PHP Cookies</title> </head> <body> <form method="POST" action="<?php echo $_SERVER['PHP_SELF'];?>"> <input type="text" name="username" placeholder="Enter Username"> <br> <input type="submit" name="submit" value="Submit"> </form> </div> </body> </html>

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