include ('classes/config.php');
include_once ('classes/config.php');
require ('classes/config.php');
require_once ('classes/config.php');

Included Files Corrupting Things

Whitespace before or after the php start and end markers

White space or any characters before or after the <?php and ?> will be output in the same way as echo(as html) in an included file. This can be a problem, for instance having a line break after the ?> and the file being included before say the start of say an echo'd xml output will corrupt the xml output as a valid xml document requires the first line XML definition at the top of the file before any line break.

USEFUL?
We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through mini sites like this. We hope you find the site helpful.
Please feel free to comment if you can add help to this page or point out issues and solutions you have found, but please note that we do not provide support on this site. If you need help with a problem please use one of the many online forums.

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