Taslim Blogger: learn php cookie - all simple code are here

Php Cookie

A cookie is often used to identify a user. This cookie embeds on users computer.
When we set the cookie on a page and a user open the page, the cookie stores on user pc who use this page.

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Php cookie Syntax

<<?php
	setcookie(name, value, expire, path, domain); 
?>

Set the cookie

<?php
      setcookie("user", "taslim", time()+3600);
?>

Set your custom Expire date

<?php
      $expire=time()+60*60*24*30;
      setcookie("user", "taslim", $expire);
?>

Cookie use by variable

<?php
      $user="taslim";
      $expire=time()+60*60*24*30; 
 
      etcookie("user",$user ,$expire); 
 
      echo "<\n><\n>";
      echo $_COOKIE["user"];  
 
      echo "<\n><\n>";
      print_r($_COOKIE);
?>

Cookie test

<html>
<body>
    <?php
        if (isset($_COOKIE["user"]))
            echo "Welcome " . $_COOKIE["user"] . "!<\n>";
        else
            echo "Welcome guest!<\n>";
    ?>
</body>
</html>

Cookie unset

<?php
      $value="taslim";
      setcookie("user", $value, time()-3600);
?>

What is php Cookie

A cookie is a text-only string that takes a place in the memory of user’s browser. If the lifetime of the cookie is set to be longer than the time user spends at that site, then this string is saved to file for future reference. User could be disabled the cookie in their browser setting.

What is php session

Session values are store in server side not in user’s machine. A session is available as long as the browser is opened. User couldn’t be disabled the session. We could store not only strings but also objects in session.

The Differences between php cookie and php sessions

We got three differences in general.
1. The key difference would be cookies are stored in client side and sessions are stored in server side.
2. The second difference would be cookies can only store strings. We can store our objects in sessions. Storing objects in sessions were really useful according to my experience.
3. Another difference was that we could be save cookie for future reference, but session couldn’t. When users close their browser, they also lost the session.

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learn php cookie - all simple code are here

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