I'm posting today because i'm encountering something weird and didn't find an explanation to that behavior (even after searching on that forum and in the php documentation).
I have a test.php file in /Desktop/PHP that contains this code :
<?php
setcookie('first_name', 'David', time() + 7*86400, null, null, false, true);
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Testing page</title>
</head>
<body>
<p>
Hey ! I remember you !<br />
Your name is <?php echo $_COOKIE['first_name'] !
</p>
<p>
echo '$_COOKIE ';
print_r($_COOKIE);
</p>
</body>
</html>
When I open that page in my browser with MAMP (so the link is localhost:8888/test.php) here's what I got :
Hey ! I remember you ! Your name is David !
$COOKIE Array ( [first_name] => David )
At first view it seems normal, but, what I don't understand is why print_r($_COOKIE) doesn't show all the cookies stored on my browser ? Is that related to the fact that I'm on a localhost page, and print_r($COOKIE) just show the cookie of the current domain ?
Thanks in advance for answers !
Yes it is only going to give you the cookies that are being passed through to your script. They are only the cookies that belong to the same domain. It would be a major security flaw if it sent all your cookies to every site.
Look for the list of set cookies in your browser and check there are the fields Name, Content, Host, Path, Send for, Expires. Your code line setcookie('first_name', 'David', time() + 7*86400, null, null, false, true); have Name='first_name',Content='David', expires='7*86400 seconds from now', Path='no path (in machine)', Host='no host', Send for='any http (if your browser respect the true entry, I don\'t understand surely this part)'.
When I set some cookie I replace those null for ROOT_PATH and DOMAIN_NAME, and I define these constant as define('ROOT_PATH',__DIR__); and define('DOMAIN_NAME', $_SERVER['SERVER_NAME']); in a configuration php file which I always create in my projects, where I set all constants and these stuff.
So, print_r($_COOKIE); will show you the cookies what are placed in the host you're running the test.php file.