Question

I keep getting this error on the pages on my site where I write: session_start();. An example and the error I get are below.

<?php
include("header.php");

  // The shopping cart needs sessions, so start one
  session_start();

Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent (output started at /home/content/c/a/s/cashme/html/buylooper/viewcart.php:5) in /home/content/c/a/s/cashme/html/buylooper/viewcart.php on line 9

How do I solve this?

Answer 1

Put session_start() before all other lines on very top:

<?php
session_start();

include("header.php");

Also, don’t echo or print or output anything on screen before header is sent.

Make sure that you don’t use session_start() twice for example in your include files otherwise you will receive the same message.

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More Information on session_start()