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Editorial Team
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Asked: 2026-06-15T14:12:30+00:00

I might be a bit confused and may need your help with this. I’m

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I might be a bit confused and may need your help with this.
I’m inside inc/newsletter.php and want to include a library that is inside lib/mailchimp-api-class

How do I refer to this class file?

I thought it should be …

require_once '../lib/mailchimp-api-class/MCAPI.class.php';

enter image description here

However, this doesn’t work … 

Warning: require_once(../lib/mailchimp-api-class/MCAPI.class.php) [function.require-
once]: failed to open stream: No such file or directory in /Users/myname/htdocs/wr/
wp-content/themes/mytheme/inc/newsletter.php on line 6
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1 Answer

  1. Editorial Team

    I think you’re using WordPress. This is not working because the relative path is from the starting file.

    Try:

    require_once dirname(__FILE__).'/../lib/mailchimp-api-class/MCAPI.class.php';

    In PHP 5.3 or newer:

    you can use __DIR__ instead of dirname(__FILE__)

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