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Thread tagged as: Question, Problem

Headers ready sent warning

Hi Drew,

I'm getting the following error message having moved my development site to the live server. Everything worked fine on the development server - no errors.

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /data02/c6524905/public_html/admin/templates/pages/home.php:3) in /data02/c6524905/public_html/admin/templates/layouts/global.header.php on line 2

Its a multi lingual site and the tmeplate starts thus

<?php include('admin/runtime.php'); ?>

<?php 
    perch_layout('global.header'); 
    $lang = PerchSystem::get_var('lang');
?>

and the contents of global.header are…

<?php
session_start();
// Set the lang variable to our default
$lang = 'en'; 
// Get the lang query string from the URL
switch(perch_get('lang')) {
    // set the lang variable according to the query string
    case 'en':
        $lang = 'en';
        break;
    case 'fr':
        $lang = 'fr';
        break;
    // if there is no query string, check for a session cookie
    default: 
        if (isset($_SESSION['lang'])) {
            $lang = $_SESSION['lang'];
        }
        break;
}
// set our session cookie to whatever the lang variable is
$_SESSION['lang'] = $lang;
// make the $lang variable available in HTML templates
PerchSystem::set_var('lang', $lang);
?>

<!doctype html>
<html class="no-js" lang="<?php echo $lang;?>">
<head>
    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible" content="ie=edge">

<?php if($lang == 'fr'){ ?>
 <title><?php perch_page_attribute('pageTitle-fr') ?></title>
<?php } else { ?>
 <title><?php perch_pages_title(); ?></title>
<?php } ?>


    <meta name="description" content="">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <link rel="apple-touch-icon" href="apple-touch-icon.png">
    <!-- Place favicon.ico in the root directory -->

    <!-- Webfont links-->
    <link rel="stylesheet" type="text/css" href="https://cloud.typography.com/6964134/7990772/css/fonts.css" />

    <link rel="stylesheet" href="/css/normalize.css">
    <link rel="stylesheet" href="/css/main.css">
    <link rel="stylesheet" href="/css/navigation.css">

    <script src="js/vendor/modernizr-2.8.3.min.js"></script>
</head>

The only thing called before this is the admin/runtime.php as always your help would be much appreciated.
Nick Loat

Nick Loat 0 points

  • 5 years ago
Rachel Andrew

Rachel Andrew 394 points
Perch Support

5 years ago

I imagine the issue is the whitespace in your file. If you output anything including white space before sending headers you are going to get an error.
Nick Loat

Nick Loat 0 points

5 years ago

Yep. Your bang on! Just found out about it and it fixed the issue - very annoying. Thanks Rachel.