你如何添加一个lib命名空间到WordPress的根圣人？

Question

Following the documentation written here , I added a file to lib directory containing:

<?php

namespace Theme\URIs;

/**
 * Returns theme images directory uri
 */
function get_images_directory_uri() {
    return get_template_directory_uri() . '/assets/images';
}

Which I then tried calling from a template file with:

<?php print Theme\URIs\get_images_directory_uri(); ?>

Calling this however, returned a Fatal error: Call to undefined function Theme\\URIs\\get_images_directory_uri() .

Answer 1

The solution is to add the file to the $sage_includes array in functions.php , so it looks like this:

$sage_includes = [
  'lib/assets.php',  // Scripts and stylesheets
  'lib/extras.php',  // Custom functions
  'lib/setup.php',   // Theme setup
  'lib/titles.php',  // Page titles
  'lib/wrapper.php',  // Theme wrapper class
  'lib/uris.php' // Project URIs
];

This imports the file to be used in the theme.

The present documentation does not explain this. (I assumed it simply imported all files in the libs directory...)

Answer 2

Not the question (I can't comment yet) but unless you've changed the directory structure your function should probably return:

get_template_directory_uri() . '/dist/images';

As the images in /assets/images get optimised and then copied to /dist/images .