Include a php file in another php file wordpress plugin

3 comments

1. When you use PHP include or require in a WordPress plugin is a good idea to use WordPress specific functions to get the absolute path of the file. You can use plugin_dir_path:

   include( plugin_dir_path( __FILE__ ) . 'inc/onefolder/mymainfile.php');
   

   Plugins directory is not always at wp-content/plugins as we can read in WordPress Codex:

   It’s important to remember that WordPress allows users to place their
   wp-content directory anywhere they want, so you must never assume that
   plugins will be in wp-content/plugins, or that uploads will be in
   wp-content/uploads, or that themes will be in wp-content/themes.

   So, using plugin_dir_path() assures that include will always point to the right path.

2. try to include absolute path of your file.
   Use it:

   $file = ABSPATH."wp-content/plugins/your-plugin/your-file.php";
   

   in your case:

   //main thing is to use ABSPATH
   $file = ABSPATH."inc/onefolder/anotherfolder/secondaryfile.php";    
   require( $file ); // use include if you want.
   

   Hope it will help.

   Edit:

   $file = ABSPATH."wp-content/plugins/your-plugin/inc/onefolder/anotherfolder/secondaryfile.php";
   

   Check it out, please note, you should give the exact path as written on above line. Make it clear.

3. • I think your path in secondary file incorrect.
   • Try this include(‘anotherfolder/secondaryfile.php’);

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