Getting only direct child pages in WordPress with get_pages
Please check the parameter ‘parent’. It seems there is a space after the name.
page-template
Custom templates not showing up in template dropdown
Just in WordPress 4.9 there’s this bug: https://core.trac.wordpress.org/ticket/42573 causing the template files to only be rescanned once every hour. To fix (until they release a new WP version with this changed), download the patch on that bug ticket and make the changes from the patch to wp-includes/class-wp-theme.php. Hope this saves someone the 2 hours I … Read more
Create custom page templates with plugins?
get_page_template() can be overridden via the page_template filter. If your plugin is a directory with the templates as files in them, it’s just a matter of passing the names of these files. If you want to create them “on the fly” (edit them in the admin area and save them in the database?), you might … Read more