PHP 5.4.X is capable of placing setcookie() after HTML markups without “Headers already sent” warning?

Question

I used to experience Warning: Cannot add header information - headers already sent when trying to place header() session_start() or setcookie() after echo or any HTML markups. But when I upgraded the PHP in my local server to 5.4.7 (in XAMPP 1.8.1 ), I don't encounter this warning anymore. Is this normal for PHP 5.4.X?

I tried placing setcookie() after some texts and an echo in this example:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Cookie Test</title>
</head>
<body>
<h1>Cookie Test</h1>
<?php
    if (isset($_COOKIE['test'])) {
        echo "<p>{$_COOKIE['test']}</p>";
    } else {
        echo "<p>No cookie..</p>";
        setcookie('test', 'You have a cookie!', time()+300, '/');
    }
?>
</body>
</html>

Then I open the page via localhost/that-page.php and refresh ..

Cookie Test

You have a cookie!

In my test environment, setcookie() works normally without any warning. Is something wrong with my settings? Thank you.

Win7x64 and XAMPP 1.8.1 used

Answer 1

The only environmental issue that can lead to to this behavior is for output buffering to be turned on.

This can be done in a number of ways

In the php.ini with

 output_buffering = On

or

In htaccess/httpd.conf with

 php_flag output_buffering On

PHP 5.4.X is capable of placing setcookie() after HTML markups without “Headers already sent” warning?

Question

Cookie Test

1 answers

solution1
2 ACCPTED 2013-07-10 19:18:39

PHP 5.4.X is capable of placing setcookie() after HTML markups without “Headers already sent” warning?

Question

Cookie Test

1 answers

solution1 2 ACCPTED 2013-07-10 19:18:39

solution1
2 ACCPTED 2013-07-10 19:18:39